陕西关中地区粮饲兼用型小麦品种（系）的筛选鉴定

为了筛选鉴定出适于陕西关中地区种植的粮饲兼用型小麦（Triticum aestivum L.）品种（系），以前期初步筛选的具有一定粮饲兼用潜力的7个品种（系）作为试验材料，对其冬季鲜绿饲草产量、农艺性状、籽粒产量以及综合经济效益等指标进行比较分析。结果表明：与对照周麦18比较，7个品种（系）冬季刈割后的农艺性状均适合当地的生产条件。周麦32的冬季分蘖数较多，稷麦8号的春季再生能力较强；西农136的冬季鲜绿饲草产量最高，为19.35 t/hm²；西农119的籽粒产量为8.80 t/hm²，比对照周麦18增加了4.76%，显著高于其它6个品种（系）。西农136和西农119的粮饲综合经济收益分别比周麦18的单一籽粒收益增加了47.36%和46.57%。综合各项指标进行评价，西农136和西农119表现突出，较为适宜作为粮饲兼用型小麦品种（系）在陕西关中地区推广应用。

Screening and Identification of Dual-purpose Wheat Varieties (Lines) for Planting in Guanzhong Area of Shaanxi

In order to screen out and identify the wheat varieties ( lines ) suitable for planting in Guanzhong area of Shaanxi Province, seven varieties ( lines ) with a certain potential for dual-purpose use wheat preliminarily screened at the early stage were used as experimental materials to compare and analyze their winter fresh green forage yield, agronomic traits, grain yield and comprehensive economic benefits. The results showed that compared with Zhoumai 18, the agronomic traits of 7 varieties ( lines ) after winter cutting were suitable for local area. Zhoumai 32 had more tillers in winter, and Jimai 8 had stronger regeneration ability in spring ; Xinong 136 had the highest fresh green forage yield of 19.35 t/hm² in winter. The grain yield of Xinong 119 was 8.80 t/hm², which was 4.76% higher than that of Zhoumai 18, significantly higher than that of the other six varieties ( lines ). The combined economic benefits of Xinong 136 and Xinong 119 were 47.36% and 46.57% higher than that of Zhoumai 18, respectively. Comprehensive evaluation of various indicators, Xinong 136 and Xinong 119 are outstanding, which are more suitable for popularization and application as Dual-purpose wheat varieties ( lines ) in Guanzhong area of Shaanxi .