تأثير الانتخاب الكمي في حاصل الحبوب ومكوناته لمحصول الرز صنف عنبر 33 Oryza sativa L.

Abstract

Abstract : This experiment was conducted in the Mashkhab region – Najaf province for 2008-2009 seasons to find out the impact of mass selection of some yield characters of the high yield plants of the first season to grow them in the second season using RCBD with 3 replicates, results show that . selection ( S2) had the highest means of all traits studied ( 25.94 , 310.22 , 5.33 th) for number of panicle/ plant , number of seeds /panicle and seed yield , same selection gave the highest heredity percentage (45.5 , 68.4 % ) for number of panicle respectively .This selection also gave higher genetic variation ( 29.9 , 17.4 and 13.5 %) for number of panicle/ plant , number seeds / panicle and grain yield respectively . It could be concluded that the above characters could be used in the breeding and improving programmers for this important crop.