黑龙江省主要玉米品种及其亲本光温反应特性研究Ⅱ12个玉米品种及其亲本温度反应特性

Study on Responses to Photoperiod and Temperature of Maize Varietiesand Their Parents in Heilongjiang Province Ⅱ Responses to Temperature of 12 Maize Varieties and Their Parents

通过对12个玉米品种及其亲本温室内和室外大田环境对比种植的有效积温调查结果表明，出苗-5.5叶期和出苗-抽雄期两种环境下差异较大，可以作为温敏反应的衡量指标。四早六、龙单23、本育9号、龙单21、446、龙系8、G801对温度反应敏感；海玉4号、龙单224、44、Mo177、884-7、H172、龙系85、4F1反应迟钝。同时两种环境下各品种和亲本的株高、穗位高也存在显著的差异，温室环境明显高于室外环境。反应敏感的材料包括四早6号、龙单21、K10、东46、龙系1、Mo17、268；反应迟钝的有四单16、龙单13、龙单16、龙单23、四单19、龙系53、4F1、龙抗11、龙系8、G801。

The effective accumulated temperature of 12 maize varieties and their parents were studied on the greenhouse and outdoor. The results showed that ： The difference between the emergence to 5.5 leaves stage and the seedling stage to heading stage were quite different,so it could be used as index to judge the responses to temperature. Sizao No. 6,Longdan23.Benyu No. 9,Longdan 21,446, Longxi 8, G801 were sensitive on responses to temperature; Haiyu No. 4 , Longdan22,444, Mo17, 7884-7, H172,Longxi85,4F1 were dullness. And the difference of the plant height and ear height was significant in these two environment,it was higher in the greenhouse than that of outdoor. The sensitive materials were Sizao No. 6, Longdan21, K10 ,Dong46, LongxiN1, Mo17,268 ; and Sidan16, Longdan13, Longdan16, Longdan23, Sidan19, Longxi53,4F1, Longkang11, Longxi8 ,G801 were dullness.