摘要
试验采用１００～１０００μｇ／ｇ缩节安（ＰＩＸ）作浸种发芽，发现浓和幼苗高度呈直线负相关；拔节期用１０００，２０００，３０００μｇ／ｇＰＩＸ和清水进行叶面喷施，结果表明，ＰＩＸ具有抑制节间伸长，降低株高的明显效应。在１０００～２０００μｇ／ｇ范围内，既可矮化植株，又能提高生理活性，同时对产量性状也无不良影响。因此，合理喷施ＰＩＸ，能够调节小麦株高，达到防止倒伏，增加产量的效果。
The objective of this study was to determine the influence of PIX on winter wheat. PIX was applied from 0 to 1000ppm at seed-soaking, and sprayed from 1000 to 3000ppm at elongation stage. PIX application resulted in reduced length of iuternodes and plant height significantly. Application of PIX from 1000 to 2000ppm retarded plant height, increased thephysiological activities and did not affect grain yield. Therefore, adequate application of PIX may possess favourable regulating effects to winter wheat,especially for raising strong seedlings and preventing plants from lodging.
基金
山西省青年科学基金
关键词
冬小麦
缩节安
调节效果
Winter Wheat, PIX, Regulating effects.
