Correlated response to selection for yield components in segregating populations of rice (Oryza sativa L.)
Abstract
Correlated response to selection was worked out for number of tillers/plant, panicle length. number of grains/panicle and 1000 grain weight in 280 F3 progenies of the cross UPR 83–34/Sita during Kharif, 1993 in random and biased (on the basis of grain yield/plant) populations selected from four different plant spacings viz., 15 x 10 cm, 20 x 10 cm, 20x15cm and 20x 20 cm during Kharif, 1992. Though no definite trend could be established, random selection by and large, resulted in positive correlated response for different yield components. The correlated response varied from character to character in the plant progenies selected on the basis of grain yield alone (biased selection)
Keywords
Rice, correlated response, random selection, biased selection