Genetic Variability Among the Novel Genotypes of Giloy (Tinospora cordifolia) for Yield and its Attributes
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Authors
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Rajesh Kumar Arya
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Vipan Kumar
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Pawan Kumar
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Hanuman Lal Raiger
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Ajay Verma
Keywords:
Fresh vine yield, Genetic variability, Giloy, Leaf length, Tinospora cordifolia, Vine lengthAbstract
A field experiment was conducted on 16 newly collected genotypes of giloy (Tinospora cordifolia) during 2020-21 and 2021-22 in a
Randomised Block Design (RBD). The results revealed the longest vine length in HTC-12, followed by HTC-11, HTC-14, HTC-10 and HTC2. The maximum vine girth was observed in HTC-15, followed by HTC-11, HTC-14, HTC-12 and HTC-5. The maximum number of
branches was found in HTC-14, followed by HTC-12 and HTC-11. The maximum number of leaves was found in HTC-2, followed by HTC12 and HTC-15. The maximum leaf length and width were observed in HTC-11, followed by HTC-12 and HTC-14. The highest fresh vine yield (kg/plant) was observed in HTC-12, followed by HTC-11, HTC-14, HTC-5, and HTC-15. The phenotypic and genotypic coefficients of variation were recorded as maximum for vine yield per plant (kg), followed by number of leaves, number of branches per plant, vine length, leaf width (cm), leaf length (cm) and vine girth (cm). The high genotypic coefficient of variation (GCV), accompanied by high heritability (H and high genetic advance as % of mean, reflects that simple selection will be operational for further improvement. bs) Vine length, vine yield, branches, and number of leaves were observed as major contributors to the first principal component, whereas leaf length, leaf width, and number of leaves were major contributors to the second one. Both components accounted for more than 90% of the variation in traits. Moreover, genotypes HTC-11, HTC-12, HTC-14, and HTC-3 accounted more of share in the first principal component. The novel genotypes HTC-12 and HTC-11were found highest in vine yield (kg/plant) and may be recommended for further testing in the multi-locations trials for the development of a new variety.
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