THE CHARACTERISTICS OF HIGH\|YIELD GENOTYPE OF EARLY\|MATURE MUTANT LINES IN BARLEY
Chen Xiu Lan, Yuepeng Han, He Tian, Yang He-feng · Europe PMC (PubMed Central) · 2000
The correlation and genetic parameters of eight agronomic traits of 36 early mature mutant lines induced from barley Sunong 9052 were studied by stepwise regression and path analysis.The results showed that:(1)the growing period of early mutants was shortened 2～13 days from that of their parent and the trait of yield had a great mutation range;(2)the number of grain per panicle significantly correlated with the days from sowing to heading;(3)according to direct path coefficients,the main characters related with individual plant\|yield were in order of productive panicle per plant1000\|grain\|weightnumber of grain per paniclefertility,the high\|yield genotype had more productive panicle and higher 10000\|grain\|weight,and to increase the yield in the breeding of early mature mutation was to select the lines with more tillers and productive panicles,higher 1000\|grain\|weight and lower number of grain per panicle;(4)the higher broad\|sense heritability and genetic variation coefficient were found in 1000\|grain\|weight and the days from sowing to heading.