华大麦4号耐迟播特性研究初报

Preliminary Study on the Tolerance of Feed-barley Variety Huadamai No.4 to Late Sowing

华大麦4号是湖北省2004年8月审定命名的超高产优质饲用大麦新品种,在多年的种植过程中表现出较好的耐迟播特性。考察了华大麦4号3个播期(11月7日,正常播期;11月22日,迟播;12月7日,迟播)条件下的生育期、农艺性状、产量和产量组成性状以及品质性状的表现。结果表明,迟播对华大麦4号的生育期、农艺性状、产量及产量组成性状、品质性状的表现均有影响,对出苗至抽穗天数的影响大于对出苗至成熟天数的影响,对生育期天数的影响大于对生育期有效积温的影响,对穗数的影响大于对千粒重、穗粒数的影响,对蛋白质含量的影响大于对淀粉含量的影响,据此对华大麦4号迟播条件下的高产栽培技术及应用前景进行了讨论。

Huadamai No.4 is the super-high-yield and high-quality new feed barley varieties which was released in Hubei Province in August 2004. In the course of cultivation it showed good tolerance to late sowing. This study investigated,under the condition of three sowing period （November 7, normal sowing period; November 22, later sowing; December 7, the latest sowing）,growth period, the agronomic traits, yield traits and quality of Huadamai No.4. The results showed that the late sowing affected growth period, agronomic traits, yield and quality traits. The high-yield cultivation technology and application prospect of Huadamai No.4 was discussed under the condition of late sowing.