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August 28, 2021
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March 1, 2022
Published
May 29, 2022
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Abstract

The field experiment was conducted to identify the principal component among ten morphological one (biochemical) oil content traits of thirty germplasm lines from the All India coordinate research project oilseeds (Taramira) in a randomize block design (RBD) with three replications in each of the test conditions, which were generated using 3 separate sowing dates with fifteen days interval from October 2nd week to November 3rd week (15th October, 30th October & 15th November 2018-19). First three principal components contributed 76.8% proportion of variation with an eigen value more than one (1.329). The largest percent contribution (30.11) to overall genetic divergence was shown by siliqua per plant followed by test weight, number of primary & secondary branches per plant & seed yield per plant. The genotypes were divided into nine groups, with Cluster II having the most genotypes (12), followed by Cluster I with five genotypes. Based on mean value of seed yield, oil content & cluster analysis, eight germplasms with cross combination viz., RTM-1806 X (RTM-314, RTM-1351, RTM-1805, RTM-1810, RTM-1800, RTM-1791, RTM-1815) & RTM-1804 X  (RTM-314, RTM-1351) were identified as high yielding which can be widely utilized as a parents in hybridization programme for the development of 9 new diverse varieties/ hybrids for enhanced seed yield as well as oil content.

Keywords

Cluster Correlation Divergence Environment Hybridization & selection

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Ola, M. P., Jakhar, M. . ., Punia, S. singh, Nehra, M. R., Kumawat, G., & Pant, N. C. (2022). Genetic divergence analysis in Taramira (Eruca sativa Mill.) under different environment conditions with special reference to principal component analysis. Environment Conservation Journal, 23(3), 387–394. https://doi.org/10.36953/ECJ.8272169
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