同步特性鉴定在粳稻品比试验中的作用

The Role of Synchronous Evaluation in Comparison Test of Japonica Rice Varieties

１９９６年用中日课题选育的高世代优良株系２１个，参加云南省农科院高原粳稻品比试验。以高产品种合系３５号为对照，对参试株系进行了高产、优质、抗寒等特性的同步鉴定。产量达到和超过对照的株系有１０个，其中７个株系经米质、抗病、抗寒鉴定而被淘汰，最后评选出产量、品质、抗病、抗寒综合性状兼优的３个品系。

wenty one elite lines bred by sinojapanese cooperation project were used in the variety comparsion test of highland japonica rice of Yunnan acacdemy of agricultural sciences in 1996,using cooperation line No.35 as the control.In this test we synchronously evaluated the yield,quality,blastresistance and coldtolerance. There were ten lines that reach or exceed control on yield.Among them seven lines were eliminated and three lines with comprehensively good performance on highyield,goodquality,blastresistance,and coldtolerance were selected through synchronous evaluation.These three lines will take part in the regional test of varieties at northcentral section of Yunnan province.Synchronously evaluated results played an important role in comparison test of varieties.