A field experiment was conducted at Experimental farm, Krishi Vigyan Kendra, Kangra, Chaudhary Sa... more A field experiment was conducted at Experimental farm, Krishi Vigyan Kendra, Kangra, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur, H.P., during rainy season, 2016 to find out the effect of YVMV incidence on different mutated seeds of P-8 okra variety. According to the description of disease scale for YVMV, the results from the experiment revealed that mutants from three treatments possessing resistance against YVMV were 1.6% EMS, combination of 65kR with 1.2% EMS and 85kR with 1.4% EMS while others are moderately resistant as compared to check variety Pusa Sawani which is highly susceptible. The resistant lines have been isolated and will be tested again in the next generation.
An investigation entitled “Induced chlorophyll mutations in bell pepper (Capsicum annuum L. var. ... more An investigation entitled “Induced chlorophyll mutations in bell pepper (Capsicum annuum L. var. grossum)” was conducted during kharif (summer-rainy season) 2012 and 2013 at Experimental farm of the Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, H.P., India. Healthy seeds of California Wonder of bell pepper were exposed to physical mutagen Gamma rays using 60CO as a source of radiation at Mutation Breeding Centre, Department of Biotechnology, BARC Trombay, Mumbai and chemical mutagen EMS (Ethyl Methane Sulphonate) to obtain the spectrum and frequency of chlorophyll mutations in M2 generation. The M1 generation was produced from these mutagen treated seeds. Several unique and interesting chlorophyll and viable mutants were obtained in M2 generation. In M2 generation, gamma rays induced higher proportion of chlorophyll mutants then EMS. A progressive increase in mutation frequency of chlorophyll mutations was observed with incr...
An attempt was made to determine the degree of divergence among 37 genotypes of okra. The multiva... more An attempt was made to determine the degree of divergence among 37 genotypes of okra. The multivariate analysis (D2) arranged 37 genotypes into 8 clusters in pooled over years and hence, showed reasonable variability. The cluster I was the largest, comprising of 54.54% genotypes , showing high degree of homogeneity among them or had least genetic variation. The intra-cluster distance was high in cluster VI and VIII followed by cluster II. Maximum intercluster distance was observed between cluster II and VI in pooled over years. Based on cluster means, cluster IV ‘(IC-169469-1 × PK)-1-2-1-2’ for fruits/plant and nodes/plant and cluster III ‘(VRH-2 × VRO-6)-9-2-1-3’ for fruit yield/plant were found high for pooled over years. The contribution of individual character toward diversity, calculated by using Mahalanobis D2divergence, showed that the mineral content (58.71%), dry matter (22.07%) fruit yield/plant (12.31%) and internodal length (3.15%) was the most important characteristic f...
The present investigation was carried out to generate information on variability for quantitative... more The present investigation was carried out to generate information on variability for quantitative and quality traits in bell pepper (Capsicum annuum L. var. grossum Sendt.). The experiment material consisted of 46 genotypes of bell pepper that were evaluated in randomized complete block design during kharif, 2016. The observations were recorded on days to 50 per cent flowering, days to first picking, plant height (cm), primary branches per plant, harvest duration (days), fruit length (cm), fruit width (cm), pericarp thickness (mm), lobes per fruit, average fruit weight (g), fruit yield per plant (g), fruits per plant, marketable fruit yield per plant (g), marketable fruits per plant, capsanthin content (ASTA units), TSS (ºBrix) and ascorbic acid content (mg/100g). Significant differences were observed among the genotypes for all the traits, indicated presence of sufficient variation for all the traits. Among all, genotypes DPCBWR-14-39 (644.29 g), DPCBWR-14-36 (610.17 g), DPCBWR-14-31 (601.96 g), DPCBWR-14-35 (517.88 g), DPCBWR-14-11 (510.34 g), DPCBWR-14-7 (510.14 g) and DPCBWR-14-29 (499.47 g) were the highest yielders and these were also among the top genotypes for economic traits viz., marketable fruits per plant, fruit yield per plant, fruits per plant and average fruit weight. The PCV was invariably higher than their corresponding GCV for most of the characters, indicated close association between phenotype and genotype. High PCV as well as GCV was observed for fruit yield per plant, fruits per plant, marketable fruit yield per plant, marketable fruits per plant, capsanthin content and ascorbic acid depicting the presence of substantial variability and would respond better to selection. High heritability alongwith high genetic advance was observed for fruit yield per plant, fruits per plant, marketable fruit yield per plant, marketable fruits per plant, capsanthin content, TSS and ascorbic acid, respectively revealing the importance of additive gene action for the inheritance of these traits, and further improvement could be done through phenotypic selection.
A field experiment was conducted at Experimental farm, Krishi Vigyan Kendra, Kangra, Chaudhary Sa... more A field experiment was conducted at Experimental farm, Krishi Vigyan Kendra, Kangra, Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya, Palampur, H.P., during rainy season, 2016 to find out the effect of YVMV incidence on different mutated seeds of P-8 okra variety. According to the description of disease scale for YVMV, the results from the experiment revealed that mutants from three treatments possessing resistance against YVMV were 1.6% EMS, combination of 65kR with 1.2% EMS and 85kR with 1.4% EMS while others are moderately resistant as compared to check variety Pusa Sawani which is highly susceptible. The resistant lines have been isolated and will be tested again in the next generation.
An investigation entitled “Induced chlorophyll mutations in bell pepper (Capsicum annuum L. var. ... more An investigation entitled “Induced chlorophyll mutations in bell pepper (Capsicum annuum L. var. grossum)” was conducted during kharif (summer-rainy season) 2012 and 2013 at Experimental farm of the Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, H.P., India. Healthy seeds of California Wonder of bell pepper were exposed to physical mutagen Gamma rays using 60CO as a source of radiation at Mutation Breeding Centre, Department of Biotechnology, BARC Trombay, Mumbai and chemical mutagen EMS (Ethyl Methane Sulphonate) to obtain the spectrum and frequency of chlorophyll mutations in M2 generation. The M1 generation was produced from these mutagen treated seeds. Several unique and interesting chlorophyll and viable mutants were obtained in M2 generation. In M2 generation, gamma rays induced higher proportion of chlorophyll mutants then EMS. A progressive increase in mutation frequency of chlorophyll mutations was observed with incr...
An attempt was made to determine the degree of divergence among 37 genotypes of okra. The multiva... more An attempt was made to determine the degree of divergence among 37 genotypes of okra. The multivariate analysis (D2) arranged 37 genotypes into 8 clusters in pooled over years and hence, showed reasonable variability. The cluster I was the largest, comprising of 54.54% genotypes , showing high degree of homogeneity among them or had least genetic variation. The intra-cluster distance was high in cluster VI and VIII followed by cluster II. Maximum intercluster distance was observed between cluster II and VI in pooled over years. Based on cluster means, cluster IV ‘(IC-169469-1 × PK)-1-2-1-2’ for fruits/plant and nodes/plant and cluster III ‘(VRH-2 × VRO-6)-9-2-1-3’ for fruit yield/plant were found high for pooled over years. The contribution of individual character toward diversity, calculated by using Mahalanobis D2divergence, showed that the mineral content (58.71%), dry matter (22.07%) fruit yield/plant (12.31%) and internodal length (3.15%) was the most important characteristic f...
The present investigation was carried out to generate information on variability for quantitative... more The present investigation was carried out to generate information on variability for quantitative and quality traits in bell pepper (Capsicum annuum L. var. grossum Sendt.). The experiment material consisted of 46 genotypes of bell pepper that were evaluated in randomized complete block design during kharif, 2016. The observations were recorded on days to 50 per cent flowering, days to first picking, plant height (cm), primary branches per plant, harvest duration (days), fruit length (cm), fruit width (cm), pericarp thickness (mm), lobes per fruit, average fruit weight (g), fruit yield per plant (g), fruits per plant, marketable fruit yield per plant (g), marketable fruits per plant, capsanthin content (ASTA units), TSS (ºBrix) and ascorbic acid content (mg/100g). Significant differences were observed among the genotypes for all the traits, indicated presence of sufficient variation for all the traits. Among all, genotypes DPCBWR-14-39 (644.29 g), DPCBWR-14-36 (610.17 g), DPCBWR-14-31 (601.96 g), DPCBWR-14-35 (517.88 g), DPCBWR-14-11 (510.34 g), DPCBWR-14-7 (510.14 g) and DPCBWR-14-29 (499.47 g) were the highest yielders and these were also among the top genotypes for economic traits viz., marketable fruits per plant, fruit yield per plant, fruits per plant and average fruit weight. The PCV was invariably higher than their corresponding GCV for most of the characters, indicated close association between phenotype and genotype. High PCV as well as GCV was observed for fruit yield per plant, fruits per plant, marketable fruit yield per plant, marketable fruits per plant, capsanthin content and ascorbic acid depicting the presence of substantial variability and would respond better to selection. High heritability alongwith high genetic advance was observed for fruit yield per plant, fruits per plant, marketable fruit yield per plant, marketable fruits per plant, capsanthin content, TSS and ascorbic acid, respectively revealing the importance of additive gene action for the inheritance of these traits, and further improvement could be done through phenotypic selection.
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