迟播条件下苏南小麦品种筛选研究

Screening of Wheat Varieties in Southern Jiangsu under the Condition of Late Sowing

目前,苏南稻麦两熟区水稻收获期越来越迟,导致小麦的播种期推迟和产量降低。对迟播条件下不同小麦品种的生长发育和产量的进行比较,利用隶属函数法,筛选适合苏南地区迟播的品种。结果显示,在苏南迟播条件下,宁麦13、宁麦19、扬麦20、扬辐麦4号和镇麦8号共5个品种中,宁麦19适宜在该地区种植,可以通过提高播量来增加迟播条件下的有效穗数,进一步提高产量。

At present,wheat sowing period is delayed in Southern Jiangsu rice-wheat growing area,which lead to the delay of sowing date and the reduction of yield.The yield and growth development of different wheat varieties were compared under the condition of late sowing.Varieties suitable for late sowing in Southern Jiangsu were screened by using subordinate function value method.Results showed that under the condition of late sowing,Ningmai 19 was suitable to be planted in Southern Jiangsu among the five wheat varieties(Ningmai 13,Ningmai 19,Yangmai 20,Yangfumai 4 and Zhenmai 8).And the productive ears of Ningmai 19 could be enhanced by improving the sowing amount,so that the yield can be further improved.