光照条件及无机营养对谷子结实的影响

来源 :华北农学报 | 被引量 : 0次 | 上传用户:xpzcz1992
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
光照条件及无机营养是影响谷子(粟)结实的重要生态因子.从抽穗到抽穗后20天遮光处理对谷子结实有严重影响.用1层、2层和3层纱布遮光,秕谷率分别增高6.18%、25.67%和37.56%,成粒数分别减少33.44%、43.56%和63.08%.遮光程度和秕谷率、成粒数的相关系数分别为0.98和-0.98.氮素营养水平与颖花数、秕谷率的相关系数分别为0.9699和-0.9798.氮素营养在谷子抽穗前18天和抽穗后20天对结实影响最大,此时提高氮素营养水平,秕谷率比对照降低7.22%和9.87%.氮素营养对结实的影响同时也受降水的制约.磷、钾、硼等元素对谷子结实也有明显的影响.本文从生理上分析了光照条件和无机营养对谷子结实的影响. Light conditions and inorganic nutrition are important ecological factors that affect the fruiting of millet (millet) .Flowering from 20 days after heading to heading had a serious impact on the fruiting of millet.With 1 layer, 2 layers and 3 layers of gauze shading, 6.18%, 25.67% and 37.56% respectively, the number of grains decreased by 33.44%, 43.56% and 63.08%, respectively.The correlation coefficients of shading degree, The correlation coefficient of the number of tamarisse valley was 0.9699 and -0.9798, respectively.Nitrogen nutrition had the greatest effect on the grain-filling of 18 days before heading and 20 days after heading, at this time, the nitrogen nutrition level was increased and the tamarisse rate was reduced by 7.22% And 9.87%, respectively.Nutritional effects of nitrogen nutrition were also affected by precipitation.Phosphorus, potassium, boron and other elements also had a significant impact on millet robustness.In this paper, the effects of light and inorganic nutrition on millet robustness were analyzed physiologically.
其他文献
Objectives Previous studies have demonstrated that endogenous norepinephrine (NE) plays an important role in the mediation of ischemic preconditioning. The pres
Objectives To explore the possibility to induce mesenchymal stem cells from human fetal livers (FMSCs) to differentiate along cardiac lineage and the way to obt
Objectives To elucidate the relationship of plasma interleukin-6 (IL-6) to the metabolic measures associated with insulin resistance (IR) due to adiposity. Meth
连作晚稻夏季育秧期气温高,秧龄又长,因秧苗徒长,移栽时苗体过大,栽后败苗严重,不利于争季节创高产。自推广连晚杂交稻以来,上述问题更显突出。多效唑是一种新型植物生长延缓
王银笔名方岚,西北第二民族学院法律系副主任。1937年生,宁夏永宁县人。1963年毕业于北京大学法律系。曾任银川市委宣传部副部长、市委党校副校长、市司法局副局长等职。现
Objectives To investigate the relationship between the chronotropic incompetence and angiographic severity of coro-nary artery disease, and the clinical value o
Objectives To introduce our experience in treatment of ventricular septal defects with aortic valve insufficiency. Methods A total of 147 cases was involved in
材料与方法 菌株:供试菌种为NRRL2999寄生曲霉,它产生四种黄曲霉毒素:B_1、B_2、G_1、G_2。类黄酮化合物:木犀黄素圣草醇和5,7二羟基色酮。类黄酮化合物的混合物按花生壳中的
To investigate the clinical feature of acute pulmonary embolism.Methods Retrospective clinical analysis was performed according to the data of 38 cases of pulmo
针对目前出口菠菜生产中面临的氮肥施用量过大和水分管理不合理的现状,采用两种灌溉方式(喷灌和畦灌)和六个肥料处理对菠菜在不同季节生长、氮素吸收和利用进行了研究。通过试