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小叶病是我国北方果园里常见的一种生理病害,是因为锌营养不足引起的。锌也是植物正常生长所必须的无机营养元素。小叶病也叫斑叶病。植株顶端的叶子先出现病害,叶片上出现黄色斑点、叶小而脆、有曲皱,丛生在一起,所以又称为簇叶病。有的枝条只在顶端生长有丛生的小叶,又俗称“一根鞭”。这种病害造成果树死亡的虽然很少,但是影响果树的生长发育和开花结实,降低产量。发生小叶病的生理原因锌在植物体内起着哪些重要的生理作用呢?缺锌又是怎样造成小叶病的呢?科学实验
Lobular disease is a common physiological disease in northern China orchards, due to lack of zinc nutrition. Zinc is also an essential inorganic nutrient for plant growth. Leaflet disease, also known as leaf spot disease. Plant the top of the leaves appear disease first, the leaves appear yellow spots, small and crisp leaves, wrinkled, clustered together, it is also known as the leaf-leaf disease. Some branches grow only clusters of leaflets at the top, also commonly known as “a whip.” Although this disease causes very few deaths of fruit trees, it affects the growth and blossom of fruit trees and reduces the yield. Physiological causes of occurrence of leaflet Zinc in the plant which plays an important physiological role? Zinc deficiency is how to cause lobular disease? Scientific experiments