IDENTIFICATION OF ELITE F6 RILs IN FINGER MILLET [Eleusine coracana (L.) Gaertn.]
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Date
2017-09-01
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
Finger millet is an important staple food crop of Karnataka. Most cultivars susceptible to
lodging. The major biotic constraint in finger millet production is blast. Hence,
development of stable high yielding, lodging and blast resistant varieties is of utmost
importance. Mechanical harvesting necessitates non-lodging and sturdy plant type. In the
present study, 52 F5 RILs derived from the cross GPU 28 × GPU 67 were evaluated during
summer 2015 at GKVK, Bengaluru, 28 selected F6 RILs were evaluated during kharif 2016
at three different locations viz., Zonal Agricultural Research Station, Bengaluru, Mandya
and Vizianagaram. High GCV, PCV and heritability coupled with genetic advance as per
cent mean values for grain yield plant-1 was recorded in both F5 and F6 RILs. Recovery
angle after bending is one of the important traits contributing to lodging resistance.
Recovery angle was found to be negatively correlated with plant height, tillers plant-1,
internodal length and peduncle length. Internodal length has highest negative direct effect
on recovery angle after bending followed by plant height and peduncle length. GGE biplot
analysis has revealed that RILs 1, 22, 24, 26, and 30 were widely adapted for grain
yield plant-1. The best resistant lines to lodging, neck and finger blast were identified. RILs
2 and 8 were resistant to lodging and blast.
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