浙江省早籼稻近期区试品种品质性状的综合分析

 根据浙江省1995年早籼稻品种区域试验6个试点13个参试品种11项品质性状的测定结果，研究了各品质性状的品种（基因型）、地点、品种×地点互作效应相对变异。除整精米率性状以外，其余各品质性状均以品种效应为主，而且品种效应以直链淀粉含量、胶稠度、粒型相对较大；整精米率以环境效应相对最大，环境对糊化温度、垩白面积、垩白率、精米率也有一定影响；将品种×地点互作效应分解为各参试品种×地点互作效应发现，某些品种整精米率、垩白率、垩白面积、糊化温度存在基因型×地点互作效应。

Comprehensive Analysis of Quality Characteristics of Early Season Indica Rice Cultivars Recently Tested in Zhejiang Province

The relative significance of genotype, test site, genotype×site interaction effects on 11 quality characteristics were analyzed with the data collected from 13 early season indica rice cultivars tested at 6 trial sites of the Regional Trial of Zhejiang Province in 1995. The results showed that except head rice recovery, all the quality characteristics were predominantly conditioned by genotype effect, with the most significance on amylose content, gel consistency, grain shape. Head rice recovery was mostly conditioned by environment effect. Gelatinization temperature, chalkiness area, chalkiness rate, brown rice rate and milled rice recovery were also influenced by environmental effect to a certain degree. When genotype× environment interaction effect is decomposed into interaction effect of each cultivar tested, it is found that there exist genotype ×environment interaction effects on head rice recovery, chalkiness area and gel temperature of some cultivars.