Abstract
In the present study, 131 litchi clones were assessed for variability, heritability, genetic advance and association studies. The phenotypic and genotypic coefficient of variation was high for TSS acid ratio (47.19% and 47.10%), acidity (44.77% and 44.70%), skin weight (29.38% and 29.26%), pulp weight (24.93% and 24.79%) and seed weight (23.81% and 23.66%). Heritability in the broad sense was more than 80% for all parameters except length:breadth (78%). The higher heritability estimates accompanied by higher genetic advance were observed in all parameters except fruit length, fruit width, length:breadth of fruit and total soluble solids (TSS). A highly significant and positive association at genotypic and phenotypic levels was found between fruit weight and length, fruit width and pulp weight. Path analysis showed that the maximum positive direct effect on fruit weight was through pulp weight (0.9715), skin weight (0.1998) and seed weight (0.1978). The traits of fruit length and fruit width imparted a positive indirect effect on fruit weight. From principal component analysis (PCA) and variability estimates, fruit weight, acidity, skin weight and fruit length were identified as important traits for identifying high-yielding clones. This study identified weight of fruit, pulp, peel and seed as important characteristics for identifying high-yielding clones.
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N. Lal, A. Singh, A. Kumar and S. Pandey declare that they have no competing interests.
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Lal, N., Singh, A., Kumar, A. et al. Assessment of Variability, Correlation and Path Analysis for the Selection of Elite Clones in Litchi Based on Certain Traits. Erwerbs-Obstbau 65, 1747–1754 (2023). https://doi.org/10.1007/s10341-023-00859-y
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DOI: https://doi.org/10.1007/s10341-023-00859-y