ESTIMATION OF CORRELATION AND PATH ASSOCIATION IN RAPESEED (BRASSICA NAPUS L.) WITH THE FEASIBILTY OF DEVELOPING F1 HYBRID IN LINE X TESTER MATING DESIGN
Ritu Khangura* and Ravindra Kumar
ABSTRACT
The presented study was carried out at Mata Gujri College, Fatehgarh Sahib’s experimental farm, Department of Agriculture during 2020-2021, 2021-2022. The National Bureau of Plant Genetic Resources, New Delhi provided the eight parents (IC 571662, IC 311734, IC 571697, IC 589680, IC 589670), three testers (EC 338978, EC 338975, EC 338976), and one check that made up the experimental material. Fifteen f1s using the line x tester mating design were grown in a randomised block design. The number of primary branches, number of secondary branches, plant height, number of siliquae per plant, siliquae length, test weight, biological yield, and harvest index are all shown at the phenotypic level of path coefficient of analysis of various traits contributing to the seed yield per plant. All of these traits show a positive value, but the days to first flowering, days to 50% flowering, and days to harvest index remain significant negative values. Additionally, the two F1 hybrids (IC 311734 x EC 338976 and IC 311734 x EC 338975) for the best parents' seed output per plant are available. Furthermore, no cross has a substantial negative value.
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