遮阴对花生农艺性状及产量的影响

Effect of Shading on the Agronomic Characteristics and Yield of Peanut

对花生盛花后期进行不同程度的遮阴处理,研究遮阴对花生农艺性状及产量的影响。结果表明,随着遮.阴强度的增加,漯花4087的主茎高、分枝数、地上部分生物量、叶片SPAD值和倒伏指数显著增加,而其根冠比、茎秆强度产量及经济系数显著降低。因此,在本试验条件下,遮阴处理明显改变了花生的农艺性状及产量,为解析遮阴对花生的影响研究提供理论依据,也为选育抗逆的高产花生品种提供理论支撑。

In this study, the effects of shading treatment on peanut agronomic characteristics and yield were studied through shading at the late stage of peanut blooming. The results showed that with the increase of shading intensity, the main stem heights, aboveground biomasses, leaf SPAD values and lodging index of Luohua 4087 increased significantly, while the root-to-shoot ratio, stalk strength, yield and economic coefficient of Luohua 4087 decreased significantly. Based on the results of the study, under the experimental conditions, the shading treatment significantly changed the agronomic characteristics and yield of peanuts, which provided theoretical basis for the study of the effects of clear shading on peanuts. It also provided theoretical supports for selection of new stress resistance and high-yield peanut varieties.