摘要
92 40 3 0 - 1是一个光温敏雄性核不育小麦 ,92 40 3 0- 1×父本 3号是它的一个杂交种 .本文报道了 92 40 3 0 - 1的育性转换特性、主要农艺性状、异交生物学特性 ,以及 92 40 3 0- 1×父本 3号的杂种优势表现和主要制种技术 .92 40 3 0 - 1表现出短日低温不育、长日高温可育的育性转换特性 ;为半冬性品系 ,株高适中 ,株叶型理想 ,综合抗性较好 ;不育播种期下开花期较长 ,内外颖张角高达 3 0 0 ,柱头生活力达 10天以上 ,具有理想的异交生物学特性 ,制种产量达 0 .2 43 7kg/m2 ;杂种 92 40 3 0 - 1×父本 3号产量达 0 .3 881kg/m2 ,比湘麦13号增产 14.0 5 % ,达 1%的极显著水平 。
was an ecological-genetical male sterile wheat,and 924030-1×Fuben3 was one of its hybrids.Fertility alteration traits,agronomic characteristics and crossing-pollination biological traits of 924030-1,performances of the hybrid,and hybrid seed production techniques were reported.924030-1 showed male sterile under short-daylight and low-temperature conditions,while male fertile under long-daylight and high-temperature conditions.It was a semi-winter variety which possessed ideal plant height and plant-leaf type,and good multi-resistances. 924030-1 also showed an ideal cross-pollination biological traits under sterility conditions, which mainly supported by the long flowering span,large open angle between pelea and lemma(maximized at 30 0),and long stigma lifespan(over 10 days).A high yield of 0.243 7 kg/m 2 was achieved in the hybrid seed production assay.The F1 of 924030-1×Fuben3 showed a high yield of 0.3881 kg/m 2 which was 14.05% higher than that of the control Xiangmai 13 (reached the 1% differential level).The hybrid also showed a satisfactory multi-resistances.
