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近年来,受特殊气候及病虫害严重发生的影响,重庆市永川区因杂交水稻抽穗不畅,严重减产,甚至绝收,时常引发种子问题投诉,增加了社会不稳定因素。1田间表现一是抽穗不良,出现严重的包颈现象。典型田块漏喷药的地方能正常抽穗,喷过药的地方不能抽穗,水稻穗下节和倒2节间缩短,稻穗全部或大部分包在叶鞘中,施药量愈大,受害愈严重。二是结实率和产量大
In recent years, due to the special climate and the serious occurrence of pests and diseases, the Yongchuan District of Chongqing has been suffering from poor seedling due to poor heading, severely curtailed production or even poor harvesting, often causing seed complaints and increasing social instability. 1 field performance is poor heading one, there is a serious phenomenon of package neck. Typical plots of leakage of the site of normal heading, the spraying of medicine can not be heading, the next section of rice and the next section to shorten the interval between 2, all or most of the panicles wrapped in the sheath, the greater the amount administered, the more victims serious. Second, the seed rate and yield large