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一、油菜缺硼的症状1.苗期:叶片深绿皱缩,下部叶面外卷,叶缘呈微紫红色,根系生长缓慢。2.越冬期,下部叶片叶缘直至全叶呈紫红色,上部叶片不平展,顶端生长停滞甚至枯萎,根系发育不良,严重的中部空心呈黄色。3.蕾苔期:抽苔缓慢,苔茎矮化,主茎顶端开始萎缩,中、下部功能叶的边缘直至出现紫红色,蕾发育不正常,甚至枯萎。
First, the symptoms of boron deficiency in rapeseed 1. Seedling: dark green folds of the leaves, the outer leaves of the lower volume, leaf margin was slightly purple, root growth is slow. The overwintering period, the lower leaves leaf margin until the entire leaves were purple, the upper leaves uneven, the top growth stagnation or even wilt, root system dysplasia, severe central hollow yellow. 3. Lycosis period: slow bolting, dwarf moss, the top of the main stem began to shrink, the middle and lower edge of the leaves until the emergence of fuchsia, bud development is not normal, or even wilt.