摘要
不同种植密度对强筋小麦新麦19生长发育、成产要素及产量的影响显示:对生育时期没有明显影响。随着种植密度增加,在返青期之前,单位面积群体呈明显增加趋势,至拔节期其差距明显缩小,趋于接近;从拔节期到抽穗期,播量越大群体消退越慢;从抽穗期到灌浆期,群体消退呈现出"快、慢、快"趋势。强筋小麦新麦19成穗数随着播量增加而增加;精少量播种对穗粒数和千粒重没有明显影响,每667m2超过10kg播量时,穗粒数和千粒重明显下降;种植密度为7.5kg/667m2时产量最高,成产三要素最为协调。
Volume - seeding in winter is not good for the growth of Winter Wheat. The difference of planting density doesn＇t effect the Strong - Gluten Wheat XinMai 19 markedly in the period of burgeon. As the planting density increases, group on unit area is marked by a continuous growth before reviving period , and in elongation period, the differences approach gradually. From shooting period to heading period, the higher seed sows, the slower groups regress. From heading period to filling period, the trend of regression of the group is ＂fast to slow and slow to fast ＂. As for Strong Gluten Wheat XinMai 19, the rate of the seed increases, the number of mature spike becomes more and more. Little and essential sowing doesn＇ t effect the yield and number per ear and 1000 - grain weight markedly. When rate of the seed exceeded 10kg per 667 square meters, the yield and number per ear and 1000 - grain weight decreased obviously. When the planting density is 7.5 kg per 667 square meters, the 3 yield components reached the highest compatibility.
出处
《河南科技学院学报》
2008年第2期7-9,共3页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
关键词
强筋小麦
种植密度
产量
the Strong- Gluten Wheat
planting density
yield
