多效唑在花生上的应用

论文编号:SW234  论文字数:10192,页数:22

摘要：针对目前花生生产普遍存在的旺长、徒长、冠层郁蔽、植株瘦弱、花位高、果针入土率降低以及由此引起的倒伏和花多不齐、针多不实、果多不饱等问题。本试验应用多效唑对花生进行处理，一方面研究喷施不同浓度多效唑对花生生理性状、农艺性状、产量性状的影响作用，旨在寻找适宜的喷施浓度；另一方面比较分析不同时期喷施的效果，确定多效唑喷施的最佳时期。喷施多效唑后，花生叶片叶绿素含量、可溶性糖含量、蛋白质含量增加，同时植株高度受到抑制，缩短节间，增加茎粗，倒伏减少，分枝数有所提高，叶片增厚，协调了营养生长与生殖生长的关系，提高花生果针下针率，提高结实率和饱满度。

关键词：花生；多效唑；生理特征；农艺性状；产量

A Saudy on the Usage of MET in Peanut Production

Abstract: There are many problems in the peanut production at present time, such as lodging, blossom without bearing fruit, bearing too much fruit resulted in not-plump fruit . In order to solve the problems, the experiments were carried out to study the effects of MET on the physiological and agronomical characteristics and yield of peanut. We hoped to find out the best PP333 density treatment and the best application period. The result showed that: the leaves became thicker, and the contents of chlorophyll, soluble sugarcame and Protein were increased under the MET application treatment. The MET could effectively restrain the growth of the main stem, while it could support the branch development and pegging. As the result, the lodging-resistance of peanut, the rate of pegging、beaying fruit and the plump extent were increased.

Key Words: peanut; MET; physiological characteristic; agronomical characteristic;  yield

目录
前言………………………………………………………………………1
1．材料和方法……………………………………………………………4
1．1材料……………………………………………………………………4
1．2试验地点及土质………………………………………………………4
1．3试验设计及方法……………………………………………………4
2、试验结果与分析………………………………………………………5
2．1盛花期喷施不同浓度多效唑对花生各生理特性、农艺性状及产量的影响………5
2．1．1多效唑对叶片叶绿素含量的影响………………………………5
2．1．2多效唑对叶片蛋白质含量的影响………………………………6
2．1．3多效唑对叶片可溶性糖含量的影响……………………………6
2．1．4多效唑对叶片单位面积干重及单位面积鲜重的影响…………7
2．1．5多效唑对花生主茎高的影响……………………………………8
2．1．6多效唑对花生分枝数的影响……………………………………9
2．1．7多效唑对花生饱果率的影响……………………………………9
2．1．8多效唑对花生产量的影响………………………………………10
2．2不同时期喷施多效唑对花生各生理特性、农艺性状及产量的影响………11
2．2．1不同时期喷施多效唑对花生的生理性状的影响………………11
2.2.2不同时期喷施多效唑对花生农艺性状的影响………………11
2．2．3不同时期喷施多效唑对花生经济性状的影响…………………12
2．2．4不同时期喷施多效唑对花生产量的影响………………………13
3．讨论与小结……………………………………………………………13
附录………………………………………………………………………15
参考文献…………………………………………………………………18

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