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根据植物蒸腾强度与叶片阻挡系数成反比的原理,采用高分子成膜物质研制成农作物涂料—长风Ⅲ号叶面抑蒸保温剂,喷布于作物体表,可分别使叶片阻挡系数增大0.35—2.50秒/厘米,蒸腾强度减少1.16—2.85×10~(-6)克/克·秒,植株体温增加1.7—3.0℃。该剂的研制成功,为防御秋季低温对水稻、棉花和果树、蔬菜的冷害提供了新制剂,开辟了新途径;为提高杂交水稻的制种产量提供了新手段,目前正在逐步推广应用。
According to the principle that the plant transpiration strength is inversely proportional to the leaf barrier coefficient, the film-forming material of the polymer is used to make the crop paint-Changfeng III foliar suppression steaming agent, which is sprayed on the surface of the crop to increase the blocking coefficient of the leaves respectively. 0.35-2.50 sec / cm, the transpiration decreased by 1.16-2.85 × 10 ~ (-6) g / g · s, the plant temperature increased by 1.7-3.0 ℃. The successful development of this agent has provided new preparations and opened up new avenues for the prevention of chilling injury to rice, cotton and fruit trees and vegetables in autumn and provided new means for improving the seed production of hybrid rice. At present, it is being popularized and applied.