论文部分内容阅读
许多农民朋友可能曾遇到过这样的困惑:大白菜在包心期植株外型虽然生长正常,但球叶边缘则呈水浸状并有沾液,随后很快脱水萎蔫、变干,呈黄褐色,叶肉半透明,呈干纸状,叶脉呈暗褐色,病情严重时叶球半截空心,严重影响产量和品质,这就是人们通常所说的白菜“干烧心”病害(又称夹帮烂、烂心子)。该病主要是因缺钙引起的组织糜烂坏死生理病害。
Many farmers and friends may have encountered such confusion: cabbage plants in the heart phase although the normal growth of the plant, but the ball edge was submerged and dip, and then quickly dehydration wilting, dried, yellow Brown, leaf translucent, was dry-like paper, veins dark brown, half of the hollow half of the ball in serious condition, seriously affecting the yield and quality, which is what people usually call the cabbage “heartburn” disease Rotten, rotten heart). The disease is mainly due to calcium deficiency caused by tissue erosion and necrosis of physiological diseases.