论文部分内容阅读
本文研究了茎叶接触刺激对小麦抗倒伏性的影响。结果表明，接触刺激可提高抗倒伏性，拔节期以后效果最佳，处理３次以上。与追肥并用，如在起身期和拔节期各施入氮肥８０ｋｇ／ｈａ可显著增产。除倒伏外，接触刺激还可提高抗病性，减轻小麦眼纹病的发生。植物若受到接触刺激，则乙烯的生成增加，组织硬化，生长受到抑制。大麦抽穗期开始４ｗｅｅｋ内，每天２次（上午９时和下午３时）用抖子来回摩擦穗顶部，可使秆长缩短１０％左右。触摸可以强化茎秆，加速木质化。因此，本文主要研究抖子接触刺激对增强小麦抗倒伏性和抗病性的影响，并结合追肥，研究其与高产的关系。
In this paper, the effects of stem-leaf contact stimulation on the lodging resistance of wheat were studied. The results showed that the contact stimulation can improve the lodging resistance, the best effect after jointing stage, the treatment more than 3 times. And topdressing and use, such as in the beginning and jointing stage of nitrogen fertilizer 80kg / ha can significantly increase production. In addition to lodging, contact stimulation can also improve disease resistance and reduce the occurrence of wheat eye pattern. If the plants are exposed to stimuli, then the formation of ethylene increases, tissue hardening, growth is inhibited. Barley heading time 4week, 2 times a day (9 am and 3 pm) back and forth with the sharpening scraper scraper top, can shorten the stalk length of about 10%. Touch to strengthen stalks and speed up lignification. Therefore, this paper mainly studies the effect of the shaker contact stimulation on enhanced lodging resistance and disease resistance of wheat, and studies its relationship with high yield by using top dressing.