Evaluation of coriander (Coriandrum sativum L.) germplasm for growth and yield characters under Tarai conditions of Uttarakhand
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Date
2012-07
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Ninety genotypes and three checks (Pant Haritima, Hisar Anand and ACr-728) of coriander (coriandrum sativum L.) were evaluated in Augmented Block Design during Rabi season of 2009-10 and 2010-11 at Vegetable Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar,to study the genetic variation for thirteen growth and yield characters namely, days to 50 per cent flowering, plant height up to main umbel, plant height including main umbel, number of primary branches per plant, number of secondary branches per plant ,number of umbels per plant, number of umbelletes per umbel, number of fruits per umbel, number of fruits per umbellate , seed yield per plot(g), seed yield per plant (g), seed yield kg per ha and 1000-seed weight (g),
The pooled data were subjected to statistical analysis. The results of analysis of variance revealed highly significant differences for number of fruits per umbel and significant differences were observed between checks for plant height upto main umbel and number of umbels per plant in 2009-10. In 2010-11 highly significant difference was observed between block for number of umbellates per umbel and highly significant difference was observed between check for plant height upto main umbel, number of secondary branches per plant, number of umbellates per umbel, seed yield per plot(g), seed yield kg per ha, and weight of 1000-seed and significant diffeferance for plant height including main umbels. The analysis of variance showed highly significant differences among genotypes indicating sufficient amount of variation for those characters in the germplasm collection. Character association indicate seed yield (kg per hectare) have significant and positive correlation with plant height upto mainumbel (0.325), plant height including main umbels (0.331), number of fruits per umbel (0.290), seed yield per plot (0.743) and seed yield per plant (0.361). The path coefficient analysis revealed that the highest direct effect was shown by seed yield per plot (0.6975), toward on seed yield (kg per hectare) followed by number of fruits per umbels (0.2716), seed yield per plant (0.1143), 1000-seed weight (0.060), days to 50 per cent flowering (0.0281), number of primary branches per plant (0.0734) and plant height upto main umbels. The principal component analysis was done on correlation matrix of important economic traits. First 10 principal components explain 94.72 per cent of total variation. Present investigation germplasm of coriander the maximum variation of 21.67 per cent was explained by first latent vector followed by 16.79 per cent (second vector) and 12.31 per cent (third vector). Ninety genotypes and three checks were classified into six non-over lapping clusters on the basis of non-hierarchical Euclidean cluster analysis for yield and growth traits. The maximum (2.997) intra cluster distance was seen in cluster III and minimum (0.000) was observed in VI and V. The maximum inter cluster distance 13.414 was found in between clusters VI and V, followed by 10.279 between clusters I and VI than 10.047 between clusters II and VI. Whereas, minimum inter cluster distance 2.694 between clusters IV and II, followed by 2.890 between clusters III and I and 3.085 between clusters II and I. Cluster I have the maximum number of genotypes (25) followed by cluster II and III have 23 genotypes in each cluster. The minimum numbers of genotypes i.e. one were present in cluster V and VI.
The performance of genotypes is evaluated on the basis their performance with respect to best check for that character. Genotypes UD-725, ACr-10 and UD-752, showed best performance for seed yield and its components in 2009-10 and in 2010-11 genotypes ACr-23, UD-601, MKSM-1117 and UD-789 showsed best performance. Based on the average performance of two years UD-787 is best genotype for yield and its components
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Thesis-PhD
Keywords
coriander, Coriandrum sativum, horticulture, genetic variation, yield components, germplasm, Uttarakhand, path coefficient analysis