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早在1869年Raulin报告锌是黑(麦曲)霉生长必要的矿质元素,其后有许多人如Stout和Arnon(1939)、崔澂(1948)等都证明高等植物的生长也需要锌。锌参与生长素吲(口朶)乙酸的形成。1950年证实链孢霉缺锌时不能形成由丝氨酸和吲(口朶)合成色氨酸的酶。1951年进一步证明了在高等植物中锌离子起着醛缩酶活化剂的作用。1959年和曾报导用锌处理西瓜可以提高西瓜的抗逆性,从而提高了生长在不良环境中的西瓜产量。随着植物营养和作物施肥研究工作的深入,微量元素锌的重要性日益受到人们的重视。但是国内有关锌对西瓜影响的报导不多。针对北京的具体情况,本试验在锌对西瓜发芽影响工作的基础上,重点探讨锌对西瓜幼苗抗旱、抗寒性的影响。
As early as 1869, Raulin reported that zinc is a necessary mineral element for the growth of black (Myrcoides), followed by many such as Stout and Arnon (1939) and Cui Xun (1948), all of which prove zinc is needed for the growth of higher plants. Zinc participates in the formation of auxin indole (acetic acid). In 1950, it was confirmed that streptomycin deficient in zinc could not form an enzyme that synthesizes tryptophan from serine and indole. 1951 further evidence of zinc ion plays an aldolase activator role in higher plants. In 1959, it was reported that the treatment of watermelon with zinc can increase the resistance of watermelon, thereby increasing the yield of watermelon grown in an adverse environment. With the deepening of plant nutrition and crop fertilization research, the importance of trace element zinc has received more and more attention. However, there are not many reports on the impact of zinc on watermelon in China. According to the specific situation of Beijing, this experiment focused on the effect of zinc on the germination of watermelon, and focused on the effect of zinc on drought resistance and cold resistance of watermelon seedlings.