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    ThesisItemOpen Access
    In vitro shoot development from callus and other explants in teak (Tectona grandis Linn.f.)
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, 2023-12-27) Shinde Pratik Suresh; Deshpande R. S.; Mane A. V.; Sawardekar S. V.; Rane A. D.
    The present investigation on “In vitro shoot development from callus and other explants in Teak (Tectona grandis Linn.f.)” was carried out at the Plant Biotechnology Centre, College of Agriculture, Dapoli, Dist. Ratnagiri 415 712 (Maharashtra). Among the matured and juvenile explants used, apical buds and nodes from juvenile plants were found best for shoot induction. T11 (Ethyl Alcohol 70% for 10 sec. + HgCl2 0.05% for 5 min.) achieved the highest aseptic culture establishment rate (70.60%) and the highest survival rate (72.00%) for surface sterilization of these explants. Browning of the media was prevented by using PVP (100 mg l-1) as an antioxidant and dark incubation for three days, resulted in aseptic cultures. Among the various treatments, the MS medium with 2.0 mgl-1 BAP shown the best for teak explant establishment and shoot induction. In MS media supplemented with 1.0 mg l-1 BAP and 2.0 mg l-1 NAA, callus induction was better in leaf explants of young teak plants while shoot induction was better in apical buds and nodes.
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    ThesisItemOpen Access
    DEVELOPMENT OF PHENOMICS PROTOCOL AND IDENTIFICATION OF GENETIC RESOURCES FOR SODIUM EXCLUSION IN RICE (Oryza sativa L.)
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, 2023-08-25) SONONE MADHAVI PRAKASH; Mane A. V.; Rane Jagadish; Kunkerkar R. L.; Sawardekar S. V.
    Rice production is severely hampered by soil salinity, which primarily develops in coastal areas as a result of seawater intrusion into the rice fields. Enhancing salinity tolerance through the introgression of relevant traits is crucial for maintaining rice productivity in coastal saline soils. The existing genetic variability of salinity tolerance among rice genotypes can be utilized to improve the productivity of rice by trait phenotyping and breeding. However, conventional methods of screening are not so convenient to handle a large number of genotypes for precise assessment. With the emergence of phenomics as an alternative for this purpose, screening protocols are evolving for assessing the stress responses of different crops. It has been shown that salinity tolerance traits can be efficiently and effectively screened in a broad range of germplasm using high-throughput screening methods and sophisticated image-based phenotyping. Hence, taking advantage of National Phenomics Facility at ICAR-National Institute of Abiotic Stress Management, Baramati, Pune, an experiment was carried out to optimize the technique for capturing the genotypic diversity of rice in salt tolerance. For this investigation, two well-known Konkan rice cultivars were raised in a controlled environment, in pots filled with coastal saline soil. Three different salt treatments were applied at seedlings or at panicle initiation (3 dS/m (actual EC of soil), 6 dS/m, and 9 dS/m) in two separate experiments. The initial EC of the soil was 3+ dS/m and was raised to the desired level by irrigating the soil with saline water prepared by dissolving pure NaCl. The Scanalyzer system of Phenomics facility was used to acquire images of plants every day after the treatment. In addition, conventional physiological parameters that reveal the effect of salinity stress were also measured. Concurrently, root architectural responses to salinity stress were studied under in vitro culture media for precise root phenotyping at the early seedling stage. The variation in genotype responses to salt levels at both stages was evident from both shape descriptors and also RGB obtained from analysis of a total 6000 photographs (2 genotypes, 5 replications, 2 treatments, 10 snaps, 20 days). Among shape descriptors area, boundary point roundness, convex hull area, center of mass Y were effective in differentiating the effects of genotype as well as salt level. Among RGB parameters, mean color red (R) and R to RGB ratio were effective. Moreover, the phenomics protocol also promises to differentiate the ionic and osmotic components of salt stress. Furthermore, these observations could be substantiated with conventional shoot traits recorded in a controlled environment and root traits studied in vitro thus suggesting the possibility of application of the phenomics protocols for a large number of genotypes. Since the scanalyzer system designed for high throughput phenomics is very expensive and not easily accessible by all the crop improvement scientists, efforts were made to develop an affordable technique that uses principles of image based phenomics. For this purpose, a low-cost alternative tool was designed with smartphone camera for the acquisition of images of plants from 4 angles and then images were analyzed by ImageJ, an open source software. This affordable protocol proved to be effective in distinguishing the diversity of genotypes in response to salt stress. Among the various shape descriptors derived from ImageJ, the plant area, perimeter, and integrated density were found to be highly effective in differentiating the salinity stress responses of genotypes. Based on image derived traits, ion homeostasis, and root architecture, six outperformed genotypes were chosen for assessing physiological responses. The physiological parameters such as relative water content, membrane stability, Na+/K+ ratio, SOD activity, protein content and photosynthetic health were considered to assess the genotypic responses to salt stress. In addition to these shoot parameters, the Na+/K+ ratio was also measured in roots. Among the six genotypes, Dandi and Pokkali-1 outperformed others as revealed by various parameters and in addition, the study also revealed the superiority of genotypes RTN-purple, Kala rata, and Munga-16 at 7 dS/m. It could be concluded that in addition high throughput expensive phenomics facility, an affordable phenomics tool optimized in this study can be employed for screening rice genotypes for salt tolerance. Such novel phenotyping protocols for germplasm evaluation and varietal development in response to salt stress promise to accelerate molecular and computational biology for trait discovery and then introgression in desired agronomic background. Further, in addition, to already known salt tolerant rice genotypes, Konkan local landrace collection of Dr. BSKKV viz. RTN-purple and Munga-16 were also found to have remarkable tolerance to coastal salinity which needs to be further studied in detail for identifications of specific traits contributing to stress tolerance.
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    ThesisItemOpen Access
    STUDIES ON PHYSIOLOGICAL AND BIOCHEMICAL ASPECTS OF CROP REGULATION IN ALPHONSO MANGO (Mangifera indica L.) UNDER KONKAN CONDITION
    (Dr.Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, 2022) PACHPOR, NAGESHKUMAR SAKHARAM; Shinde, A. K.; Mane, A.V.; Savardekar, S. V.; Haldankar, P.M.; Gokhale, N.B.
    The present study entitled ’Studies on Physiological and Biochemical Aspects of Crop regulation in Alphonso mango under Konkan Condition” was undertaken at Centre of Excellence for Mango, Department of Horticulture Dr. BSKKV, Dapoli, during 2016-2017 and 2017-2018. The experiment was laid out in Randomized Block design consisting of three replications. The investigation consists of three trials to study Effect of foliar feeding of nutrients, plant growth regulators and irrigation on induction of post-harvest vegetative flush, to study effect of foliar application of plant growth regulator and cultural practices on suppression of post monsoon vegetative flush and to study effect of foliar application of nutrients and plant growth regulator to hastening maturity of post monsoon vegetative flush. The present investigation concluded that the foliar application of nutrients and plant growth regulator along with irrigation beneficial for induction of post-harvest new vegetative flush in summer and early harvesting with higher yield. Increase in vegetative flush, flowering intensity and fruit yield over control due to foliar application of 19:19:19 (Foliar grade) 2% with irrigation could be attributed due to the highest rate of photosynthesis (8.43 µ mole CO2/m2/sec), high C:N ratio (21.66) and higher water potential (-1.40 bar). The present investigation helps to conclude that adoption of various cultural practices and plant growth regulator is beneficial for suppression of post monsoon vegetative flush and early induction of flowering and early harvesting. Basin exposure twice in last week of Sept. and Oct (T10) recorded maximum (63.68%) flowering intensity followed by T2- CCC @ 2500 ppm (61.83%) and highest fruit yield (4.90 t/ha), followed by T2- CCC @ 2500 ppm (4.74 t/ha) whereas, minimum flowering intensity (40.72%) and lowest fruit yield (2.34 t/ha) were observed in T1-Control. The foliar application of plant growth regulators after induction of new vegetative shoots after monsoon was beneficial to hastened the maturity of post monsoon vegetative flush and induction of early flowering, better flowering intensity and early harvesting. Among various treatments foliar spraying of PBZ 1000 ppm (T11) was best for early flowering and early harvesting with promising yield. This could be attributed due to the highest rate of photosynthesis (9.69 µ mole CO2/m2/sec), more negative leaf water potential (-2.59 bar) and lowest soil moisture (19.17%), respectively.
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    ThesisItemOpen Access
    IN VITRO STUDIES IN TEAK (Tectona grandis Linn. f.) FOR INDUCTION OF MORPHOGENESIS
    (Dr.Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, 2023-02-02) PUSHPAVALLI, NAMALA VENKATA; DESHPANDE, R. S.; Mane, A. V.; Sawardekar, S. V.; Rane, A. D.; Mahadik, S. G.
    The present investigation on “In vitro studies in Teak (Tectona grandis Linn. f.) for induction of morphogenesis” was carried out at the Plant Biotechnology Centre, College of Agriculture, Dapoli, Dist. Ratnagiri 415 712 (Maharashtra). Among the matured and juvenile explants used, apical buds and nodes from juvenile plants were found best for shoot induction. Treatment T11 (Ethyl Alcohol 70% for 10 sec. + HgCl2 0.10% for 5 min.) recorded maximum (72.75%) aseptic culture establishment with 74.00% survival rate for surface sterilization of these explants. Browning of media was prevented by imposing the antioxidant treatment of PVP (100 mg l-1 ) and dark incubation for three days which resulted in aseptic cultures. The Driver and Kuniyuki Walnut medium with 1 mgl-1 BAP found to be best for establishment and shoot induction in teak explants among the other treatments. Callus induction was better in leaf explants of juvenile plants of teak while the shoot induction was better in apical buds and nods in MS media supplemented with 0.5 mg l-1 BAP and 0.5 mg l-1 NAA.
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    ThesisItemOpen Access
    STUDY OF MORPHO-PHYSIOLOGICAL AND BIOCHEMICAL TRAITS ASSOCIATED WITH GROWTH AND YIELD OF PROMISING CULTURES OF WAL (LABLAB PURPUREUS L. SWEET) UNDER IRRIGATED AND RESIDUAL MOISTURE CONDITIONS
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli., 2020-11) KURHE, TUKARAM MAHADA; Mane, A.V.; Mahadik, S. G.; Desai, S. S.; Kasture, M. C.
    A field experiment was conducted at agricultural research agronomy farm, College of Agriculture, Dapoli to study the “Study of Morpho physiological and Biochemical traits associated with growth and yield of promising cultures of Wal (Lablab purpureus L. sweet) under irrigated and residual moisture conditions.” during Rabi season 2019-20. The genotypes were grown in strip plot design with three replications provided with two irrigation levels in horizontal strip and eleven genotypes on vertical strip. The experiment consisted of horizontal strip I1 residual moisture condition (no irrigation) and I2 irrigation condition, irrigation at critical stage (i.e. protective irrigation at sowing, vegetative stage, flowering and pod formation stage) and vertical strip eleven genotypes namely V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, and V11 Konkan Wal-2 (check). Among the two irrigation level I2 (irrigation at critical stage) recorded maximum plant height, number of leaves, number of branches, leaf area, leaf area index, relative growth rate, leaf area ratio, specific leaf area, specific leaf weight, total chlorophyll, relative water content, protein content, seed yield and straw yield. Accumulation of maximum proline was found at I1 residual moisture condition (no irrigation). Among the genotypes used for the study, genotype V6 had recorded maximum plant height, number of leaves, number of branches, leaf area, leaf area index, relative growth rate, leaf area ratio, total chlorophyll, Number of pods per plant, seed per pod, 100 grain weight and seed yield per plant. While considering the drought tolerant capacity of genotypes, genotype V6 had higher accumulation of proline content, relative water content and water potential at severe moisture stress treatment. These biochemical response changes confer that genotype V6 had maximum drought tolerant capacity than other genotypes used for the study purpose. When compared seed yield recorded due to various irrigation levels, I2 (irrigation at critical stage) was found most optimum as it recorded higher seed yield than I1 residual moisture condition (no irrigation). A wide range of variability exists for different morpho-physiological and biochemical parameters among eleven genotypes of wal under different irrigation conditions. Among the eleven genotypes of wal studied under different irrigation conditions, genotypes V6 recorded high yield under I2 (irrigation at critical stage) irrigation condition, owing to their high efficiency to produce maximum economical yield. I2 irrigation condition (irrigation at critical stage) could be considered as the optimum level of irrigation frequency for higher yield with saving in water. This information may be helpful for better understanding of concept of critical stages of vegetative and reproductive growth and its application to the effect of drought at various aspects of growth and yield of wal. It can be employed for the improvement programme as well as efficient management practices for wal production in drought prone areas.
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    ThesisItemOpen Access
    PHYSIOLOGICAL VARIATIONS IN MANGO (Mangifera indica L.) CULTIVARS UNDER KONKAN CONDITION
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli., 2020-10) DUBALE, AKASH SUDHIR; Burondkar, M. M.; Mahadik, S. G.; Dhopavkar, R. V.; Kulkarni, M. M.
    The present study aimed at “Physiological variation in mango (Mangifera indica L.) cultivars under Konkan condition” was undertaken at experimental farm of College of Horticulture of Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri (Maharashtra) during cropping season of the year 2019-20. The experiment was laid out in randomized block design with five mango cultivars viz. Alphonso, Kesar, Ratna, Amrapali and Tommy Atkins as a treatment and five replications with an object to study the phenological characterization, physiological characterization and biochemical characterization and yield performance of five different mango (Mangifera indica L.) cultivars under different seasons of Konkan region. The present investigation clearly established that, among five mango cultivars, Cv. Alphonso and Tommy Atkins exhibited early phenological events viz. early bud break and took minimum days to reach to the fruit maturation as compared to other three varieties under Konkan condition. Similarly; Amrapali and Tommy Atkins found to be physiological most efficient and climate resilient mango owing to significantly maximum photosynthesis rate (68.73 %), stomatal conductance (25 %), transpiration rate (29.01 %), water use efficiency (42.51 %), total chlorophyll content (29.90 %) and total non-structural carbohydrates (28.66 %), which were significantly associated with high fruit yield (3.932 , 2.509 Kg/m3). Weather association clearly established that physiological parameters viz. rate of photosynthesis, transpiration, stomatal conductance, canopy temperature depression and biochemical parameters viz. total chlorophyll content and non-structural carbohydrate and its fraction viz. glucose, fructose, sucrose and starch were positively associated with maximum temperature and bright sunshine during winter among three seasons and November and December among the 12 months which under Konkan condition.
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    ThesisItemOpen Access
    PHYSIOLOGICAL AND BIOCHEMICAL BEHAVIOUR OF GROWTH, YIELD AND QUALITY OF ALPHONSO MANGO (Mangifera indica L.) AS INFLUENCED BY SEA PROXIMITY AND SOIL VARIATIONS
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli., 2020-12) MAHADIK, SANDIP GOPAL; Burondkar, M. M.; Mane, A.V.; Bhave, S. G.; Salvi, B. R.; Kasture, M. C.
    The present study entitled “Physiological and biochemical behaviour of growth, yield and quality of Alphonso mango as influenced by sea proximity and soil variations” was undertaken at three locations viz. Karde-Murud (<1 km proximity to sea), Dapoli (10 kms proximity to sea) and Wakavali (25 kms proximity to sea) Tal. Dapoli, Dist. Ratnagiri (Maharashtra), during the year 2017-2018 and 2018-19. The experiment was laid out in factorial randomized block design consisting of 9 treatment combinations comprising 3 sea proximities and 3 soil variations. The present investigation clearly established that, both proximity of mango orchards to sea coast and soil variation within proximity, exerted profound influence on morphological, physiological, biochemical and post harvest behaviour of Alphonso mango in Konkan. Mango orchards close to sea and grown on red lateritic rocks established their supremacy over other two sea proximities and soil variations owing to lowest soil moisture depletion (by 29.78 %) and leaf water potential (by 17 %) at post monsoon stage which laid to early induction of vegetative flush (by 22) days followed early (by 13 days) and profuse flowering (by 47 %) and fruiting (by 74%), leading to higher fruit yield per tree (by 57%) with better post-harvest quality of fruits than the orchards at 25 kms proximity to sea grown on plain land with good soil depth. Significantly high rate of photosynthesis, transpiration, stomatal conductance, chlorophyll content, C:N ratio, nitrate reductase activity, fractions of non-structural carbohydrates, and high proline content during vegetative and reproductive stages, were found to be major physiological and biochemical contributing factors significantly associated with high fruit set (16 nos/panicle), fruit retention (0.67 fruits/panicle) at harvest and final fruit yield (46.15 kg/tree) in mango orchards close to sea coasts and grown on red lateritic rocky soil than other two locations and soil types. Similarly orchards close to sea proximity and red lateritic rocks exhibited better post-harvest fruit quality in terms pulp: stone ratio (4.63),% weight of pulp (67.95),reducing sugar (5.26%), total sugar (19.81%), total soluble solids (22.50), pH (4.78), colour, flavor, taste and aroma which was positively associated with the high rate of photo-assimilation, transpiration, chlorophyll content, C:N ratio, proline content, nitrate reductase activity and rapid accumulation of non-structural carbohydrates during fruit growth stage as compare to other two locations. Weather association clearly established that leaf exchange parameters viz., rate of photosynthesis, stomatal conductance and canopy temperature depression, total chlorophyll content and biochemical parameters viz., nitrate reductase and non-structural carbohydrates and its fractions viz., glucose fructose and sucrose and post-harvest quality of fruits in terms of the specific gravity, pulp: stone ratio and per cent weight of pulp, reducing sugar, total sugar, total soluble solids, pH, colour, flavour, taste and overall acceptability were positively associated with minimum temperature and relative humidity at later stage of fruit development . Findings of present study could be useful in redefining the typical Alphonso growing zones in Konkan and formulating a new research projects aimed at using physiological interventions in regulation of flowering and fruiting of Alphonso mango under current climatic aberrations in Konkan.
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    ThesisItemOpen Access
    EVALUATION OF WAL (Lablab purpureus L.) CULTURES UNDER RESIDUAL MOISTURE CONDITION
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli., 2021-10-06) DEVRUKHKAR, ASMITA MAHENDRA; Mahadik, S. G.; Mane, A. V.; Desai, S. S.
    The present investigation entitled “Evaluation of Wal (Lablab purpureus L.) cultures under residual moisture condition.” grown under residual moisture in Konkan region was carried out at Agronomy Farm, Department of Agronomy, College of Agriculture, rabi 2020-2021. The lablab bean was sown during rabi season after harvest of paddy under residual moisture. The experiment were laid out in randomized block design with 11 treatment and three replications with an object to study the effect of moisture stress on morph physiological parameters, biochemical and yield attributing characters. Data were collected on moisture content in soil, days to flowering, 50% flowering, days to physiological maturity, plant height, number of branches, number of leaves, dry matter accumulation, total chlorophyll content, chlorophyll stability index, relative water content, AGR, RGR. NAR, Leaf area, LAI, LAD, number of pods per plant, pod yield per plot and other yield related character at ii the interval of 30, 60, 90 DAS and at physiological maturity. Data collected were subjected to analysis of variance. Soil moisture content in initial stage was maximum 30.06% and decreased gradually with advancement of crop growth. The minimum soil moisture was observed at harvest it was 15.11%. Early days to flowering recorded in treatment T7 and lowest days to 50% flowering and physiological maturity observed in T2 and T4 respectively. Maximum plant height observed in treatment T6 (116.43 cm) and maximum branching was observed in T6 (22.77). Cultures ranged from 65.06 to 42.86 for number of leaves. Highest total dry weight was observed in T6 (21.276 g plant -1) and lowest was observed in T4 (10.886 g plant-1). Maximum chlorophyll content was recorded in T6 (1.410 mg/g) during 60 DAS. Highest chlorophyll stability index was observed in treatment T6 (65.24 %) at harvest. Maximum relative water content noted in T6 (85.06 %) where minimum in T3 (74.96 %) during 90 DAS. At harvest AGR ranged between T5 (0.0722 g/day and T11 (0.0007 g/day). At harvest RGR ranged between T11 (0.0559 g/g/day) and T8 (0.00213 g/g/day). At harvest NAR ranged between T7 (0.000763 g dm-2 day-1) and T11 (0.00000523 g dm-2 days-1). Maximum leaf area was observed in T6 (911.04 cm² plant-1 ) and minimum was observed in T1 (531.03 cm² plant-1). Maximum LAI was recorded in T6 (1.011) and minimum was in T1 (0.589). Highest LAD was showed by treatment T6 (32.08 days). Highest harvest index found in T6 (23.72 %) and lowest in T5 (14.12 %). Maximum number of pods per plant was found in T6 (16.53) and pod yield per plot also maximum found in T6 (728.33 g). 100 grains weight was found maximum in T6 and T7 (22.00 g). Number of primary branches was observed highest in T6 (5.73). iii Highest number of grains per pod was found in T11 (5.06). Maximum seed yield per plant was noted in T6 (32.33 g) and also seed yield per plot ranged between 435 g and 195.66 g. This indicates the large variation among cultures. Among all cultures treatment T6 (DPLW-6) was found superior for morphophysiological, biochemical and yield contributing character.
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    ThesisItemOpen Access
    MORPHO-PHYSIOLOGICAL CHARACTERIZATION OF BRINJAL (Solanum melongena L.) GENOTYPES UNDER KONKAN CLIMATIC CONDITIONS
    (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli., 2021-07-20) SHINDE, SHWETA SUBHASH; Mahadik, S. G.; Chavan, S. S.; Pethe, U. B.; Chavan, V. G.
    A field experiment was conducted at Vegetable Improvement Scheme, Central Experimentation Station, Wakawali, Tal. –Dapoli to study the “Morpho-physiological characterization of brinjal [(Solanum melongena L.)] genotypes under konkan climatic conditions” during rabi season 2020-21. The twenty nine brinjal genotypes were grown in randomized block design in two replications. The morphological, phenological, physiological and growth related observations were recorded at 60, 90 and 120 DAT. The yield and yield attributing characters were recorded at harvest, replication and genotype wise. The highest (99.7%) germination per cent were observed in genotypes Swarn Pratibha (T1), Kasral local (T15) and Konkan Prabha (T29); whereas maximum (1311.24) seedling vigour was recorded in genotype Arka Nidhi (T27). The genotype Swarn Pratibha (T1) showed maximum leaf area (11078.9 cm2/plant) and leaf area index (4.103) at 120 DAT among genotypes. Maximum branching (10.1) was observed in genotype Swarn Pratibha (T1) and maximum (297.82 g) total dry matter production observed in genotype Swarn Pratibha (T1). The genotype CHES-249 was required least days (65.1 days) to 1st flowering and the genotype D-79-19 required least days (73.6 days) to 1st fruit setting. The significant differences among the genotypes for RWC, CGR, AGR, RGR and NAR at various stages of growth played an important role in yield determining processes. The values of this growth parameter increased between 60 and 90 DAT and declined thereafter towards maturity. The maximum relative water content noted in genotype Swarn Pratibha (T1) (90.37%) where minimum in Panhalekazi local (T20) (83.14%) during 120 DAT. At 90-120 DAT, CGR ranged between Swarn Pratibha (T1) (0.000879 g/m2/day) and Panhalekazi local (T20)(0.000144 g/m2/day). At 90-120 DAT maximum AGR was recorded in Swarn Pratibha (T1) (2.373 g/day).The RGR was observed maximum in genotype Swarn Pratibha (T1) (0.00395 g/g/day) and minimum (0.00201 g/g/day) was in genotype Arka Nilkanth (T8) and BGTP-1 (T12) during 90-120 DAT. The highest NAR was recorded in Swarn Pratibha (T1) (12.13×10-5 g/dm2/day) and was the lowest in genotype BGTP-1 (T12) (6.01×10-5 g/dm2/day). The genotype BB-54 (T6) (38.69) recorded the highest number of fruits per plant and the lowest in genotype Panhalekazi local (T20) (13.86). Swarn Pratibha (T1) recorded the longest length of fruits (13.62 cm) and the shortest in genotype Kali Rawai (T7) (5.32 cm). Diameter of fruit was maximum (5.43 cm) in genotype CHES-249 (T13), while minimum (2.44 cm) fruit diameter was found in genotype Dapoli local-2 (T23). Genotype Swarn Pratibha (T1) produced the highest fruit yield per plant (3.54 kg); while Panhalekazi local (T20) produced the lowest fruit yield per plant (0.42 kg). Single fruit weight was the highest in the genotype Kasral local (T15) (113.31 g) and the lowest in genotype Panhalekazi local (T20) (24.22 g). The genotype Swarn Pratibha (T1) showed the highest (92.34%) harvest index and the lowest (66.9%) in genotype Panhalekazi local (T20). This indicates the large variation among genotypes. The highest positive correlation with fruit yield per plant was exhibited by relative water content (r=0.8302). This may be due to the better carbon assimilation and translocation efficiency and also tend to have greater efficiency for better partitioning of photo-assimilates towards reproductive growth in order to have better yield. These studies will be helpful in determination of physiological traits responsible for fruit yield of brinjal, which as the result of derivable morpho-physiological attributes observed in these genotypes. Among all genotypes, Swarn Pratibha (T1) was found superior for morphological, physiological and yield attributing characters.