【摘要】 本文介绍了冬小麦超高产品种的育种目标、亲本选配及后代选择的经验,育成的紧凑大穗型高产优质冬小麦新品种莱州953,同地块连续6年亩产超600kg,最高亩产650.7kg.该品种分蘖力强,两极分化早、快,抗寒耐冻,高抗倒伏,高抗条锈,叶锈和白粉病,秆锈免疫,极抗纹枯病,落黄好.籽粒蛋白质含量15.16%,赖氨酸0.46%.成穗率偏低,应适当增加播种量.适宜群体动态是:每亩基本苗16万左右,冬前总茎数80万,春季最高茎数100万左右,亩成穗30~35万.更多还原

【Abstract】 A high yielding winter wheat variety Laishou 953 has been bred, which produced 9 t/ha grains in thesame field in succession of six years, with the highest yield being 9. 76t/ha. The plant is compact, resistantto chilliness and stripe wilt, highly resistant to lodging, stripe rust, leaf rust and powdery mildew, and im-muned from stem rust. This variety has strong tillering ability and good yellowing, and produces high qualitygrain which contains l5. 16% of protein and 0. 46% of lysine. As the percentage of earbearing tiller is lower,so the seeding rate must be increased. The proper population should be about l6×l04 essential seedlings, 80× 104 total stems before winter ahd upper to l00× l04 in sprin8, 30-35 × l04 ears per mu.更多还原