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Bihar Agricultural University, Sabour

Bihar Agricultural University, Sabour established on 5th August, 2010 is a basic and strategic institution supporting more than 500 researchers and educationist towards imparting education at graduate and post graduate level, conducting basic, strategic, applied and adaptive research activities, ensuring effective transfer of technologies and capacity building of farmers and extension personnel. The university has 6 colleges (5 Agriculture and 1 Horticulture) and 12 research stations spread in 3 agro-ecological zones of Bihar. The University also has 21 KVKS established in 20 of the 25 districts falling under the jurisdiction of the University. The degree programmes of the university and its colleges have been accredited by ICAR in 2015-16. The university is also an ISO 9000:2008 certified organisation with International standard operating protocols for maintaining highest standards in teaching, research, extension and training.VisionThe Bihar Agricultural University was established with the objective of improving quality of life of people of state especially famers constituting more than two third of the population. Having set ultimate goal of benefitting society at large, the university intends to achieve it by imparting word-class need based agricultural education, research, extension and public service.

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20192
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Author: Ahmad, Mukhtar × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Genetic Divergence in Pointed Gourd for Antioxidant, Nutritional and Postharvest Quality
    (Department of Horticulture ( Veg. & Flor.), BAU, Sabour, 2019-05-03) Ahmad, Mukhtar; Verma, R.B
    An experiment was conducted during 2014-15 and 2015-16 at Vegetable Research farm, Bihar Agricultural University, Sabour (Bhagalpur) to study the existing genetic variability and to assess the genetic diversity among twenty-five genotypes of pointed gourd. The analysis of variance revealed highly significant differences among the genotypes for all the twenty-two characters studied. High heritability accompanied with high genetic advance as per cent of mean were recorded for total flavonoids (77.38 %) chlorophyll ‘b’ (72.85 %), total phenols (71.14 %), titratable acidity (57.45 %), number of marketable fruits per plant (53.52 %), yield of marketable fruits per plant (47.26 %), CUPRAC (46.58 %), carotenoids (40.11 %), number of primary branches per plant (38.95 %), chlorophyll ‘a’ (38.68 %), node number at which first female flower appears (37.58 %), average fruit weight (28.00 %) and fruit length (22.31 %). Correlation analysis revealed that the yield of marketable fruits per plant was significantly and positively correlated with fruit length (0.23), number of marketable fruits per plant (0.82) and titratable acidity (0.23). Path analysis further revealed that the number of marketable fruits per plant (0.8569), average fruit weight (0.3261), total phenol (0.1978), days to last fruit harvest (0.1709) and chlorophyll ‘b’ (0.1145) had positive direct effect on yield of marketable fruits per plant. Genetic diversity study grouped all the genotypes into six clusters and revealed that there was presence of considerable amount of genetic diversity in the materials for different yield and yield attributing traits. The cluster I contained the maximum of 8 genotypes followed by 6 genotypes in cluster II and V, three genotypes in cluster IV, and only one (mono-genotypic) in cluster III and VI, respectively. The highest intra-cluster distance was exhibited by cluster V (289.96) followed by cluster IV (187.57), II (159.29) and I (105.68). The highest inter cluster distance was observed between cluster III and V (766.29) followed by cluster IV and VI (758.47) and cluster V and VI (681.39). The above results indicated that these genotypes had maximum genetic diversity and useful for developing potential genotypes through selection for high yield coupled with desirable traits. The genotypes of cluster V showed the highest mean values for yield of marketable fruits per plant (3.96 kg) and titratable acidity (0.43 %) and the lowest mean value for days to first fruit harvest (153.94). The cluster VI exhibited highest mean value for average chlorophyll ‘a’ (24.13 mg/100g), chlorophyll ‘b’ (19.48 mg/100g), carotenoids (0.012 mg/100g), TSS (Total Soluble Solids) (3.42 0Brix) and free radical scavenging activity (52.57 %) while, the cluster IV exhibited highest mean value for fruit breadth (3.41 cm), number of marketable fruits per plant (119.50) and total sugar (1.56 %). The cluster III exhibited highest mean value for fruit length (8.16 cm), number of primary branches per plant (7.67), days to last fruit harvest (172.00), carotenoids (0.012 mg/100g) and total flavonoids (1.19 mg/100g) while, the cluster II exhibited highest mean value for ascorbic acid (28.03 mg/100g), total phenol (1.06 mg/100g), dietary fibre (5.40 mg/100g), CUPRAC (Cupric Ion Reducing Antioxidant Capacity) (2.27 %) and lowest mean value for node number at which first female flower appears (12.68). The promising genotypes viz; BRPG 13-30, BRPG 12-1, BRPG 12-8, BRPG 12-9, BRPG 12-7, BRPG 12-11 and Rajendra Parwal-1 were identified from cluster V and III on the basis of mean values for yield of marketable fruits per plant, number of primary branches per plant, days to last fruit harvest, fruit length, carotenoids, total flavonoids, titratable acidity and days to first fruit harvest for early maturity which could be utilized for the selection and development of high yielding genotypes. Among the twenty-two traits studied, maximum contribution was made by average fruit weight (49.33%) followed by yield of marketable fruits per plant (23.00%), number of marketable fruits per plant (15.00%), chlorophyll ‘b’ (5.67%) and total phenol (2.67%). Therefore, these characters may be given importance during selection and varietal development programme. Among the chemical treatment for reducing the post-harvest losses, Carnauba wax 1.0 % was found most effective for controlling low PLW (Physiological loss in weight), low TSS (Total Soluble Solids), high Chlorophyll and low carotenoids in almost all the genotypes except BRPG 12-7 in which BAP @ 200 ppm treatment was found to be the most effective. However, BRPG 12-9 was found promising among all genotypes for overall post- harvest treatments applied.
  • Thumbnail Image
    ThesisItemOpen Access
    Genetic Divergence in Pointed Gourd for Antioxidant, Nutritional and Postharvest Quality
    (Department of Horticulture ( Veg. & Flor.), BAU, Sabour, 2019-05) Ahmad, Mukhtar; Verma, R.B.
    An experiment was conducted during 2014-15 and 2015-16 at Vegetable Research farm, Bihar Agricultural University, Sabour (Bhagalpur) to study the existing genetic variability and to assess the genetic diversity among twenty-five genotypes of pointed gourd. The analysis of variance revealed highly significant differences among the genotypes for all the twenty-two characters studied. High heritability accompanied with high genetic advance as per cent of mean were recorded for total flavonoids (77.38 %) chlorophyll ‘b’ (72.85 %), total phenols (71.14 %), titratable acidity (57.45 %), number of marketable fruits per plant (53.52 %), yield of marketable fruits per plant (47.26 %), CUPRAC (46.58 %), carotenoids (40.11 %), number of primary branches per plant (38.95 %), chlorophyll ‘a’ (38.68 %), node number at which first female flower appears (37.58 %), average fruit weight (28.00 %) and fruit length (22.31 %). Correlation analysis revealed that the yield of marketable fruits per plant was significantly and positively correlated with fruit length (0.23), number of marketable fruits per plant (0.82) and titratable acidity (0.23). Path analysis further revealed that the number of marketable fruits per plant (0.8569), average fruit weight (0.3261), total phenol (0.1978), days to last fruit harvest (0.1709) and chlorophyll ‘b’ (0.1145) had positive direct effect on yield of marketable fruits per plant. Genetic diversity study grouped all the genotypes into six clusters and revealed that there was presence of considerable amount of genetic diversity in the materials for different yield and yield attributing traits. The cluster I contained the maximum of 8 genotypes followed by 6 genotypes in cluster II and V, three genotypes in cluster IV, and only one (mono-genotypic) in cluster III and VI, respectively. The highest intra-cluster distance was exhibited by cluster V (289.96) followed by cluster IV (187.57), II (159.29) and I (105.68). The highest inter cluster distance was observed between cluster III and V (766.29) followed by cluster IV and VI (758.47) and cluster V and VI (681.39). The above results indicated that these genotypes had maximum genetic diversity and useful for developing potential genotypes through selection for high yield coupled with desirable traits. The genotypes of cluster V showed the highest mean values for yield of marketable fruits per plant (3.96 kg) and titratable acidity (0.43 %) and the lowest mean value for days to first fruit harvest (153.94). The cluster VI exhibited highest mean value for average chlorophyll ‘a’ (24.13 mg/100g), chlorophyll ‘b’ (19.48 mg/100g), carotenoids (0.012 mg/100g), TSS (Total Soluble Solids) (3.42 0Brix) and free radical scavenging activity (52.57 %) while, the cluster IV exhibited highest mean value for fruit breadth (3.41 cm), number of marketable fruits per plant (119.50) and total sugar (1.56 %). The cluster III exhibited highest mean value for fruit length (8.16 cm), number of primary branches per plant (7.67), days to last fruit harvest (172.00), carotenoids (0.012 mg/100g) and total flavonoids (1.19 mg/100g) while, the cluster II exhibited highest mean value for ascorbic acid (28.03 mg/100g), total phenol (1.06 mg/100g), dietary fibre (5.40 mg/100g), CUPRAC (Cupric Ion Reducing Antioxidant Capacity) (2.27 %) and lowest mean value for node number at which first female flower appears (12.68). The promising genotypes viz; BRPG 13-30, BRPG 12-1, BRPG 12-8, BRPG 12-9, BRPG 12-7, BRPG 12-11 and Rajendra Parwal-1 were identified from cluster V and III on the basis of mean values for yield of marketable fruits per plant, number of primary branches per plant, days to last fruit harvest, fruit length, carotenoids, total flavonoids, titratable acidity and days to first fruit harvest for early maturity which could be utilized for the selection and development of high yielding genotypes. Among the twenty-two traits studied, maximum contribution was made by average fruit weight (49.33%) followed by yield of marketable fruits per plant (23.00%), number of marketable fruits per plant (15.00%), chlorophyll ‘b’ (5.67%) and total phenol (2.67%). Therefore, these characters may be given importance during selection and varietal development programme. Among the chemical treatment for reducing the post-harvest losses, Carnauba wax 1.0 % was found most effective for controlling low PLW (Physiological loss in weight), low TSS (Total Soluble Solids), high Chlorophyll and low carotenoids in almost all the genotypes except BRPG 12-7 in which BAP @ 200 ppm treatment was found to be the most effective. However, BRPG 12-9 was found promising among all genotypes for overall post- harvest treatments applied.