| In order to provide scientific basis for validatio
n and application of rice varieties in arid and semi arid areas, 6 rice varieti
es (lines) was planted in 6 different ecological sites in Heilongjiang Province
to analyzed the stability of yield and yield components (spike per hole, grains
per spike, 1000 grain weight, and seed setting rate) of rice by using AMMI mode
l. The results showed that the interaction of genotype and environment (G×E) af
fected significantly on yield and yield components of rice. Under the condition
of various rice varieties (lines) planted in different regions, the stability of
yield and yield components was much different, in which the yield of Kendao 08-
924 was the most stable. 850 Farm and Junchuan Farm were suitable for regional t
est of rice. The number of secondary rachis per spike and spike length were corr
elated with all characters at significant or extremely significant level, except
for seed setting rate and yield. The rice yield was positively correlated with
spike number at significant level, but it was not significantly correlated with
other characters. |