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ThesisItem Open Access Effect of planting time and variety on seed production in onion (Allium cepa L.) and its storage(Department of Vegetable Science, OUAT, Bhubaneswar, 2021-12-08) Das, Bhaskar Chandra; Tripathy, P.; Sahu, G. S.; Das, A. K.; Swain, S. K.; Mandal, P.The present investigation entitled, “Effect of planting time and variety on seed production in onion (Allium cepa L.) and its storage” was carried out at All India Network Research Project on Onion and Garlic, operating at College of Horticulture under Odisha University of Agriculture & Technology, Sambalpur, Odisha, India during late kharif seasons of 2014-15 and 2015-16. The objective of this investigation was to standardize the planting time and variety for seed-to-seed method of onion seed production. The other objective was identification of suitable storage container for enhancing seed storability. The field and laboratory experiments were conducted by adopting split plot design with three and factorial CRD with four replications, respectively. In field experiment, five planting dates (i.e; 10th September, 25th September, 10th October, 25th October and 10th November) in main plots while five recommended onion varieties for Odisha (i.e., Agrifound Dark Red, Agrifound Light Red, Bhima Shakti, Bhima Super and Arka Niketan) in subplots were evaluated. Similarly, seed storage experiments were conducted with five storage containers (i.e., cloth bag, 200 gauge polythene bag, aluminium foil packet, 500 gauge polythene bag with desiccant as silica gel and poly jar) with same five varieties. Both biometric observations related to vegetative growth, bolting, umbel & seed yield as well as seed studies on chemo-morphic variability, seed germination, seed vigour index etc. were recorded. Observed data were analyzed by adopting standard statistical procedure. The results of both the experiments showed significant variations among planting time, varieties and storage containers as well as their corresponding interactions. The pooled results of two years of field experiments revealed significantly highest plant height (74.27 cm ), leaves plant-1 (12.83), collar thickness (2.06 cm), days to bolting (78.37), umbel diameter (5.35 cm), seed stalks plant-1 (3.05), seeds umbel-1(2.25 g), seed yield (7.02 g plant-1 & 809.51 kg ha-1) with quality seeds of test weight(3.73 g) and germination(93.10 %) on planting of onion seedling on 25th September, irrespective of varieties. Similarly, irrespective of planting time, the variety, Arka Niketan recorded significantly highest plant height (74.23 cm), leaves plant-1 (12.92), collar thickness (2.13 cm), days to bolting (69.03), days to seed maturity after bolting (61.17), umbel diameter (4.59 cm), seed stalks plant -1(3.18), seeds umbel-1(1.90 g), seed yield (6.32 g plant-1 and 701.49 kg ha-1) with quality seeds of test weight (3.35 g) and germination(92.03 %) than rest of the tested varieties. Bhima Super and Agrifound Dark Red were identified as other better performing varieties for seed production purpose. Significantly highest seed quality parameters like speed of seed germination (29.77), seed vigour index-I (1853.91) and I1 (1281.72) and highest chemo-morphic traits like dehydrogenase enzyme activity(0.76 OD g-1ml-1), α amylase activity(52.81 µg ml-1min-1) and lowest electrical conductivity of seed leachate (0.32 dSm-1) were recorded in 25th September planting. Among the varieties, Arka Niketan significantly recorded highest seed quality and chemo-morphic traits like speed of seed germination (28.86), seed vigour index-I (1778.78) and I1 (1174.45), dehydrogenase enzyme activity( 0.85 OD g-1 ml1 ), α amylase activity(51.97 µg ml-1min-1) and lowest electrical conductivity of seed leachate (0.32 dSm-1) Results on seed storage study revealed significantly highest seed germination (81.08 %), speed of germination (23.38), seedling length (16.96 cm), seedling dry weight (12.93 mg), seedling vigour index-I (1375.49), seedling vigour index- II (1049.01) with lowest seed moisture content (6.07 %), seed infection (4.68 %) and seed infestation (5.08 %) in seeds stored with 500 gauge polythene bag with silica gel as desiccant closely followed by aluminum foil packet than other storage structures, irrespective of varieties after four months of storage. Among the tested varieties, Arka Niketan recorded significantly highest seed germination (73.55 %), speed of germination (19.90), seedling vigour index-I (1036.70), seedling vigour index- II (694.23) with lowest seed moisture content (8.64 %), and seed infestation (10.98 %), irrespective of storage containers after four months of storage. Thus, it may be concluded that for quality onion seed production programme, seedlings should be transplanted during 10th September to 10th October as Seed-to-Seed method with a seed yield of 463.86 to 809.51 kg ha-1. Similarly, onion variety, Arka Niketan (701.49 kgha-1), Bhima Super (609.69 kgha-1) and Agrifound Dark Red (484.24 kgha-1) are suitable for quality seed production under West Central Table land agro-climatic zone of Odisha. Onion seeds should be stored either in 500 gauge polythene bag with silica gel as in-package desiccant or aluminium foil packet for enhancing seed storability.ThesisItem Open Access Effect of nitrogen, gypsum and boron on growth and yield of table purpose groundnut (Arachis hypogaeaL.) in rabi season(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Pradhan, Preeti Suman; Swain, Susant Kumar; Paikaray, R.K.; Lenka, Subhrasini; Mishra, Kshitendra NarayanA field experiment was conducted at the Groundnut Research Station, Odisha University of Agriculture and Technology, Bhubaneswar to study the “Effect of nitrogen, gypsum and boron on growth and yield of table purpose groundnut (Arachis hypogaea L.) in rabi season”. The soil was acidic (pH=4.9), well drained, sandy loam, low in available nitrogen (192 kg /ha) and medium in available phosphorus (14.6 kg /ha) and potassium (164.5 kg /ha). The effect of twelve different integrated nutrient management practices in bold seeded rabi groundnut viz. T₁:25:50:50 kg N,P2O5,K2O /ha+ Gypsum @ 250 kg/ha (basal):, T₂: T1 + 10kg/ha borax (basal), T₃:25:50:50 kg N,P2O5, K2O/ha+ gypsum @ 500 kg/ha (basal), T₄: 25:50:50 kg N,P2O5,K2O/ha + 500kg/ha gypsum (2splits) viz. 250kg/ha as basal +250 kg/ha at 25DAS, T₅: T3 + borax @10kg/ha (basal), T₆: T4 + borax @10kg/ha (basal), T₇:50:50:50 kg N, P2O5, K2O /ha + gypsum @ 250 kg/ha (basal), T₈: T7 + borax @10 kg/ha (basal), T₉:50:50:50kg N, P2O5, K2O /ha + gypsum @ 500 kg/ha (basal), T₁₀:50:50:50 kg N, P2O5, K2O/ha + gypsum @ 250 kg/ha(basal)+ 250 kg/ha at 25DAS, T11: T9 + borax @0.2% spray at 30DAS, T12: T10 + borax @0.2% spray at 30DAS were evaluated in a randomized block design (RBD) with three replications. The bold seeded groundnut crop (var. Mallika - ICHG-00440) was sown on 11th January, 2020. The crop received 428.4 mm rainfall in 25 rainy days during the growing period. The crop matured in 116 days. Treatment (T12) with N50 P50 K50 kg/ha + 500kg/ha gypsum (2 splits) viz. 250kg/ha as basal application +250 kg/ha at 25DAS + borax @0.2%foliar application (30 DAS) resulted in highest pod yield (2493kg/ha), haulm yield (4799 kg/ha), pod number (16.6 / plant) and protein (20.2 %) in groundnut crop. With this treatment, the crop removed the highest quantity of nutrients of 120.8 kg N/ha, 20.4 kg P2O5 /ha and 63.4 kg K2O /ha and provided highest net return of Rs.78713/ha and B-C ratio of 2.37.ThesisItem Open Access Response of grafted Tomato (Solanum Lycopersicum L.) to different fertilizer combinations under Polyhouse(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) S, Sreehari; Acharya, Gobinda Chandra; Sahu, Gouri Shankar; Tripathy, Pradyumna; Sahoo, Manas RanjanThe current investigation on "Response of grafted tomato ( Solanum lycopersicum L.) to different fertilizer combinations under polyhouse” was conducted at Central Horticultural Experiment Station ICAR-Indian Institute of Horticultural Research, Aiginia, Bhubaneswar during 2020- 21. The Experiment was conducted following Randomized Block Design (RBD) with seven treatments i.e., T1= Control, T2= 25% of RDF, T3= 50% of RDF, T4 = 75% of RDF, T5= 100% of RDF, T6=125% of RDF and T7=150% of RDF and three replications. The results revealed that maximum values for morphological characters such as plant height at the time of flowering(71.8) and height at the time of final harvest(117 cm) was recorded in T7 which was at par with T6. Most number of primary branches(9.67) and number of fruits per plant (66.67) were recorded with T6 (125% of RDF). Highest Yield and yield attributing characters such as fruit length (5.25cm), fruit girth (17.32cm), fruit weight (55.58 grams), fruit yield per plant (3.53kg) and yield per hectare (35.3 tones) were recorded with T6 -125% of RDF. Similarly, highest B:C ratio was also observed to be 2.26 in T6( 125% of RDF). Quality parameters like highest acidity (0.397) and ascorbic acid (24.67) was recorded in fruits under T6-125% of RDF while Maximum shelf life (18.89 days), Maximum TSS (4.890 Brix) and maximum total sugar (3.56) was observed with T7- 150% of RDF which was also found statistically at par with T6. Bacterial wilt incidence was recorded in all treatments and after 60 days of transplanting, T5, T6 and T7 recorded less incidence (3.44 ) of bacterial wilt as compared to 5.84 in the T1 control plants. Thus, from this experiment it was observed that better results in terms of both yield and quality with highest benefit cost ratio was obtained when grafted tomato Arka rakshak were treated with 125 % of RDF in polyhouse. it was also concluded that although resistant varieties are cultivated, bacterial wilt could affect the grafts if congenial environment is available for the pathogen , so utmost care should be given in planting time and also proper plant protective measures should be used thereafter.ThesisItem Open Access Genetic variability and performance of Sweet potato (Ipomoea batatas (L.) Lam) Genotypes(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Vakra, Basavantappa; Chauhan, Vijay Bahadur Singh; Sahu, Gouri Shankar; Tripathy, Pradyumna; Patil, KalidasThe present investigation entitled, “Genetic Variability and Performance of Sweet potato [Ipomoea batatas (L.) Lam] Genotypes” was carried out during Rabi, 2020-21 at ICAR- Central Tuber Crops Research Institute, Regional Centre, Bhubaneswar, Odisha. The field experiment was laid out in Randomized Block Design with 3 replications consisted 25 genotypes. In this investigation, the objectives are, (1) To study the genetic variability for growth, yield, and quality traits in sweet potato (2) To study the heritability and genetic advance (3) To study the correlation coefficient among the characters associated with yield (4) To find out the direct and indirect effect of a component on yield. Observations were recorded for various growth, yield and quality parameters. Recorded data were analysed by adopting standard statistical and biometrical procedures. Analysis of variance revealed a highly significant difference among the genotypes was observed for all the growth, yield ad quality parameters. Based on mean performance for yield and yield components, the genotypes Gouri followed by SP-643, Pusa Safeda and H-268 were identified as most promising for yield per plant. The phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all the traits. High GCV (20.81 %) and PCV (21.27 %) were observed for vine length at 60 DAP, Total sugar content (28.44 % and 28.47 %), and protein content (38.13% and 38.26%). It indicated that the existence of a broad genetic base, which would be amenable for further selection. High heritability (>60%) coupled with high genetic advance as per cent over a mean (>20%) were recorded for all the traits mainly tuber diameter (93.34 % and 26.36 %), number of tubers per vine (90.94 % and 36.89), tuber yield per vine (92.71 % and 38.14 %) and tuber yield per hectare (95.88 % and 34.14 %) were observed indicated that the high heritability is due to additive gene effects which can be utilized for the further crop improvement programme. Character association indicated that tuber yield per plant was highly significant and positive association with number of tubers, tuber length, tuber diameter, mean weight of tuber, number of branches, number of leaves and leaf size at both phenotypic and genotypic level. Path coefficient analysis revealed that genotypic levels, number of tubers per vine (0.593) followed by the number of leaves (0.256) exerted a high positive direct effect on tuber yield per plant. The genotypes such as Gouri, SP-643, Pusa Safed and H-268 produced higher tuber yield per hectare which indicates that these genotypes may be considered for higher yield. These genotypes can also be used for the improvement of yield and component traits by selection.ThesisItem Open Access Evaluation of advanced breeding populations and validation of molecular markers for bacterial wilt resistance in chilli (Capsicum annuum L.)(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Subash, Ramadugu; Naresh, Ponnam; Sahu, Gouri Shankar; Tripathy, Pradyumna; Reddy, K. Madhav; Acharya, Gobinda ChandraThe present investigation entitled „Evaluation of advanced breeding populations and validation of molecular markers for bacterial wilt resistance in chilli (Capsicum annuum L.)‟ was conducted with objectives of identifying advanced breeding lines with bacterial wilt resistance and validate molecular markers associated with the resistance. Screening of twenty two selected RILs of Anugraha × CM334 through artificial challenge inoculation was carried out and 14 RILs were found to be highly resistant, 4 were resistant, 2 were moderately resistant and 2 were moderately susceptible. And among 242 F4 families of IIHR-B-HP-130×CM334 screened, 28 F4 families were found to be highly resistant followed by 23 families as resistant. And most of the families (164 families) were found to be susceptible to extremely susceptible indicating that resistance is recessive in nature and susceptibility is dominant over resistance. Further evaluation of the selected RILs and F4 families for yield & yield attributing traits were carried out. Analysis of variance revealed highly significant variation for different traits studied in both the populations. PCV value which was greater than GCV was observed among nine characters of the both populations indicating the effect of environment in genotypic expression of traits studied. High GCV, high heritability and high genetic advance as parent of mean were observed for most of the traits in both the populations indicating additive gene action governing the traits. Further through molecular analysis two SSR markers (CAMS 336 and Hpms034) were identified to be associated with bacterial wilt resistance through bulk segregant analysis (BSA) and individual plants screening of selected F4 families and RILs of IIHR-B-HP 130 x CM334 and Anugraha x CM334 respectively. Further reported QTL Bw1 linked marker CAMS 451 was validated and found to be associated with resistance. These markers have to be further extended to large population to confirm their association to use in marker assisted breeding.ThesisItem Open Access Variability studies in Okra [Abelmoschus esculentus (L.) Moench](Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Kindo, Johnson; Sahu, Gouri Shankar; Tripathy, Pradyumna; Mohanty, Anita; Das, Swarnalata; Sarkar, SubratA field experiment was conducted at All India Crop Research Programme on Vegetable crop, Odisha University of Agriculture & Technology with fifteen genotypes of Okra (Abelmoschus esculentus L. Moench) in Randomised Block Design with 3 replications during summer, 2021. The analysis of variance revealed high significant difference among the mean sum of square due to genotype for different quantitative characters studied like plant height, number of primary branches per plant, leaf area, leaf stalk length, days to initial flowering, days to 50% flowering, fruit length, fruit weight, fruit girth, number of fruits per plant, number of seeds per fruit and yield per plant. The high genotypic co-efficient variance and phenotypic co-efficient of variance were observed for plant height, number of primary branches per plant, number of fruits per plant, number of seeds per fruit and yield per plant indicating high variability available in the germplasm for these characters for further improvement. High heritability coupled with genetic advance as percent of mean was observed for characters like number of primary branches, plant height, yield per plant, number of seeds per fruit, number of fruits per plant, fruit weight and fruit length indicating that these characters were least influenced by the environmental effects and governed by additive genes. The result of phenotypic and genotypic correlation revealed that yield per plant was significantly and positively correlated with plant height, number of primary branches per plant, fruit length, fruit weight, fruit girth and number of fruits per plant & negatively and significantly correlated with days to initial flowering and days to 50% flowering at both phenotypic and genotypic level. Number of fruits per plant had significant positive correlation with plant height, number of primary branches per plant and significantly and negatively correlated with leaf area, leaf stalk length, days to initial flowering and days to 50% flowering. Further, path co-efficient analysis partitioned the correlation into direct and indirect effects. Path analysis revealed that maximum positive direct effect on yield per plant exhibited through plant height, number of primary branches per plant, fruit length, fruit weight, fruit girth and number of fruits per plant. These characters play a major role in recombination breeding and suggested that direct selection based on the traits will be helpful for crop improvement in okra. The 15 genotypes of okra were grouped into 4 clusters. Cluster I comprising of 6 genotypes, Cluster II (3 genotypes), Cluster III (5 genotypes) and Cluster IV (only 1 genotype). The average inter-cluster distance revealed that the most divergent cluster was Cluster II and Cluster IV (D2= 42.84%). Considering the YVMV incidence and ELCV incidence, it was observed that maximum incidence of YVMV was with variety 2020/OKYVVARRES-3 and maximum ELCV was found with variety 2020/OKYVVARRES-3, and minimum YVMV (%) was observed in variety 2018/OKYVRES-6 and minimum ELCV was with 2018/OKYVRES-3. Out of the 15 genotypes the highest yield of 89.01 q/ha was found in variety 2018/OKYVRES-3. For crop improvement programme, selection based on Cluster II and Cluster IV will be more beneficialThesisItem Open Access Genetic variability, character association and genetic divergence studies in Sponge gourd (Luffa cylindrica L.) genotypes(Department of Vegetable Science, OUAT, Bhubaneswar) Ray, Saudamini; Dash, Sunil Kumar; Sahu, Gouri Shankar; Tripathy, Pradyumna; Das, SwarnalataThe present investigation entitled, “Genetic variability, character association and genetic divergence studies in Sponge gourd (Luffa cylindrica L.) genotypes” was carried out during early summer season, 2021 at All India Coordinated Research Project on Vegetable Crops, OUAT, Bhubaneswar, Odisha, India with an objective to study the nature and extent of genetic variability present in genotypes and identify the promising genotype(s) for fruit yield and yield attributes in sponge gourd. Fourteen sponge gourd genotypes were evaluated by adopting RBD with three replications. Seventeen parameters including vegetative growth, flowering, fruit yield and yield attributing as well as fruit quality parameters were carefully accessed during the experimental study. Analysis of variance revealed that there is significant differences among the genotypes for all the characters studied indicating strong presence of variability in the studied material. The PCV values were higher than the GCV values as expected. High heritability along with high GA as % of mean was noticed for characters like average fruit weight (82.3% and 18.25%), fruit length (58.4% and 25.22%) and fruit yield per plant (0.43% and 19.03%), vine length (60.9% and 31.70%) which implies that these traits are under control of additive gene action. So, there is an ample scope for direct selection of these traits in sponge gourd. At phenotypic level, fruit yield plant-1 was found to have significant and positive correlation with number of fruits plant-1 (0.561), average fruit weight (0.629), fruit girth (0.346) and fruit length (0.346). Likewise, at genotypic level, the fruit yield plant-1 was significantly and positively correlated with the characters like internode length (0.474), fruit girth (0.686), number of fruits plant-1 (0.837), average fruit weight (0.952) along with high correlation establishing better chances for selection. Whereas, characters like days to 1st male flower and days to 1st female flower appearance showed significant and negative correlation with fruit yield plant-1 which is desirable. From the path coefficient analysis, it was revealed that characters like number of fruits plant-1 (0.288), average fruit weight (0.166), internode length (0.223), vine length (0.214) have positive direct effect on fruit yield plant-1 . All the characters were grouped into five clusters. Cluster V includes 4 no of genotypes which is maximum whereas cluster I include monotype. From the investigation it was observed that the inter cluster distances was maximum between I and II (417.07). So hybridisation between these clusters will be beneficial for further crop improvement programme. From the present investigation it can be concluded that the genotypes 2020/SPGVAR-6, 2020/SPGVAR-5, 2019/SPGVAR-5, 2019/SPGVAR-7 were identified as the best performing genotypes having significantly better vegetative growth, fruit yield, yield and yield attributing characters. As a result, in the crop development programme for sponge gourd, the primary focus should be on further selection of these characters for fruit yield and yield attributes. Further, the genotypes 2020/SPGAVR-4 and 2020/SPGVAR-5 may be selected for heavier fruit and higher no of fruits plant-1 . Considering the flowering parameters, the genotypes 2020/SPGVAR-5 and 2020/SPGVAR-1 can be selected for earliness with respect to both male flower and female flower appearance.ThesisItem Open Access Variability studies in Chilli (Capsicum annuum L.)(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Sahu, Pinki; Sahu, Gouri Shankar; Tripathy, Pradyumna; Mohanty, Anita; Das, Swarnalata; Sarkar, SubratThe present investigation entitled, “Genetic variability studies in chilli (Capsicum annuum L.)” was conducted at the Horticultural Research Farm in All India Coordinated Research Project on Vegetable crops, OUAT, Bhubaneswar during Rabi season of 2020-21 with an objective to study the nature and extent of genetic variability in chilli genotypes for improvement in fruit yield and yield attributing traits. Eighteen genotypes were evaluated in RBD with three replication. The genotypes were evaluated on the basis of 17 parameters that included growth, yield and quality parameters. The genotype 2020/CHIVAR-6 (104.37 cm) recorded significantly highest plant height. The genotype 2020/CHIVAR-9 (42.67) recorded the earliest to produce 50% flowering. Maximum fruit length was observed with the genotype 2020/CHIVAR-4 (9.82 cm) and fruit yield per plant with 2020/CHIVAR-4 (301.80 g). Regarding biochemical parameters the genotype 2020/CHIVAR-9 (6.2○Brix) recorded the highest TSS and the genotype 2019/CHIVAR-7 (147.67 mg/100g) recorded the highest ascorbic acid content. However, less percent of disease infestation was noticed with the genotype 2020/CHIVAR-4. The result revealed significant differences among the genotypes for all the characters under study. The PCV values were higher than the GCV values as expected. Relatively lower difference between GCV and PCV were recorded in characters like number of seeds per fruit (23.42 %-24.28%), fruit girth (20.11 %-22.20 %), days to 50 % flowering (4.73 %-7.10 %) and fruit length (12.99%-16.06 %). High heritability along with high GA as % of mean was noticed for characters like number of seeds per fruit (93.07 % and 46.54%) and plant height (90.741 % and 48.64 %), fruit girth (82.09 % and 37.55 %), fruit yield per plant (70.47 % and 34.03 %), fruit length (65.39 % and 21.65 %) and fruit weight (63.11 % and 31.82 %) indicating that these traits are controlled by additive gene action. Characters like plant height (0.453 and 0.352), fruit length (0.640 and 0.343), number of fruits per plant (0.608 and 0.588), leaf area (0.392 and 0.313) significantly and positively correlated with fruit yield per plant at both genotypic and phenotypic level. Path co-efficient studies revealed that number of primary branches per plant (0.751 and 0.124) was found to exert maximum positive direct effect on yield followed by fruit length (0.549 and 0.201), number of fruits per plant (0.483 and 0.558) and fruit weight (0.316 and 0.316) at both genotypic and phenotypic level. The total 18 genotypes were grouped into five different clusters through Tocher’s method of genetic divergence analysis. It can be concluded that crosses involving cluster III with cluster V can give desirable recombinants with maximum hybrid vigour in future study due to high genetic divergence. Maximum contribution towards divergence were recorded with number of seeds per fruit (32.68), fruit weight (20.26), fruit stalk length (18.95), fruit yield per plant (10.46), fruit girth (7.19) and fruit length (5.23). Based on overall findings of the present study, it can be concluded that among the genotypes 2020/CHIVAR-4, 2019/CHIVAR-7 and 2020/CHIVAR-3 are best performing genotypes producing highest fruit yield per plant. However, for crop improvement characters like number of fruits per plant, number of primary branches per plant, fruit length and fruit weight should be taken into consideration.ThesisItem Open Access Genetic variability study in F2 segregating generation of Brinjal (Solanum melongena L.)(Department of Vegetable Science, OUAT, Bhubaneswar, 2021) Khuntia, Abhigna; Tripathy, Pradyumna; Sahu, Gouri Shankar; Mohanty, Anita; Das, SwarnalataThe present investigation entitled, “Genetic variability study in F2 segregating generation of brinjal (Solanum melongena L.)” was conducted at AICRP on Vegetable Crops, OUAT, Bhubaneswar, Odisha, during rabi season of 2020-21. The objectives of the investigation were estimation of nature and extent of genetic parameters, character associations, path analysis and divergence study in F2 segregating populations followed by identification of round green fruited brinjal genotype(s) on per se performance. Forty five genotypes of brinjal including 34 F2 segregating population, nine parents and two hybrid checks (VNR-5 and A-30) were evaluated by adopting RBD replicated twice. Most of the growth, fruit yield and yield attributing traits as well as fruit quality parameters were carefully assessed during the investigation. The analysis of variance of F2 segregating population revealed significant differences among all the 21 traits under study except leaf area, indicating wide scope for effective selection. Results on genetic variability revealed high GCV (%), heritability (%) and genetic advance as % of mean viz., plant height (20.37, 87.00 and 39.07), fruit breadth (22.34, 88.00 and 43.15), average fruit weight (32.78, 94.00 and 65.51), fruits plant-1(27.21, 90.00 and 53.13), total fruit yield plant-1 (29.20, 92.00 and 57.53) and incidence of bacterial wilt (42.53, 72.00 and 74.43), respectively. Results on combined effect of both correlation and direct path on total fruit yield plant-1 revealed that traits viz., plant height (0.336 and 0.350), primary branches plant-1(0.285 and 0.099), fruit breadth (0.359 and 0.124), average fruit weight (0.603 and 0.688) and fruits plant-1 (0.518 and 0.687) showed significant positive effect at phenotypic level, hence direct selection will be effective in brinjal. On the basis of Mahalanobis D2 statistics, hybridization between Selection from BBSR-192-1 with either genotypes viz., BBSR-08-2 X BBSR-195-3, Jammusahi Local or BBSR-195-3 X Selection from BBSR-145-1 will not only produce superior types with higher fruit yield but also early flowering, round fruit shape and tolerance to bacterial wilt in F1 stage or recombinants in future segregating population. On the basis of performance, F2 segregants viz., Jammusahi Local X BBSR-195-3, Jammusahi Local X BBSR-192-1, Jammusahi Local X Selection from BBSR-192-1 , BBSR 195-3 X BBSR-192-1 , BBSR-8-2 X BBSR-192-1 and BBSR-8-2 X Jammusahi local were identified as superior types with green round fruits having higher fruits plant-1(11.60 to 19.50), average fruit weight (216.89 to 286.21g) and significantly higher fruit yield plant-1(1833.70 g to 1993.50g). From the present investigation, it may be concluded that presence of significant variability among the traits, provide better scope for selection. Direct selection through traits like plant height, primary branches plant-1, fruit breadth, fruit weight and fruits plant-1 will be effective in development of superior desired types. Hybridization between Selection from BBSR-192-1 with genotypes viz., BBSR-08-2 X BBSR-195-3, Jammusahi Local or BBSR 195-3 X Selection from BBSR-145-1 will produce better F1s or segregants. The F2 segregants viz., Jammusahi Local X BBSR-195-3, Jammusahi Local X BBSR-192-1, Jammusahi Local X Selection from BBSR-192-1, BBSR-195-3 X BBSR-192-1, BBSR-8-2 X BBSR-192-1 and BBSR-8-2 X Jammusahi local may be recommended for further screening of superior genotypes with green round fruits and higher fruit yield plant-1 in brinjal.
