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小油菜阴花阴角是生产上普遍存在的間題。二年来,我們在蕪湖县万春公社、易太公社及巢县烔煬公社进行了初步調查。从調查結果看来,小油菜在一般生产情况下,只有50—70%的花发育成有效角果。因此,我們認为,摸索小油菜在大田生产情况下的阴花阴角規律,进而提出有效的农业技术措施,減少阴花阴角,提高結角率,是当前油菜增产中的重要課題。現将初步調查結果和我們的意見提出来和大家共同研究。一、小油菜阴花阴角的規律調查小油菜的阴花阴角,是在結角中后期进行的。所謂阴花,是指开花后因养料不足或其它外因(如暴风驟雨、过湿、干旱、病虫害等),未能受精成角而萎蔫、脫落。所謂阴角,是指形成角果皮后因各种內外因子(如养料不足、病虫害等),致使胚珠发育不良,角果黃化脫落或有角无籽。
Small rape overcast negative angle is a common problem in production. In the past two years, we conducted a preliminary investigation in Wanchun Commune in Wuhu County, Easy Tai Commune and Chao County Congtai Commune. It seems from the survey results, rape in the general production conditions, only 50-70% of the flowers developed into effective pods. Therefore, in our opinion, it is an important issue in rapeseed production to explore the law of cloudy and negative angle of rape under field production, and then put forward effective agricultural techniques and measures to reduce the negative angle and the angle of incidence. Now the preliminary findings and our comments put forward and we study together. First, the law of small rape overcast Yin angle rape Xiao Yin angle, is in the corner of the late. The so-called overcast, refers to flowering due to insufficient nutrients or other external causes (such as stormy, over-wet, drought, pests, etc.), failed to fertilize angulation and wilting, fall off. The so-called negative angle, refers to the formation of Kok skin due to a variety of internal and external factors (such as lack of nutrients, pests, etc.), resulting in poor ovule development, horny yellow shedding or angular seedless.