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一般认为,缺锌症状的表现与磷/锌浓度比密切相关。但其生理原因尚无定论。本文以秋葵水培试验,对这一问题进行探讨。先将秋葵幼苗于完全营养液中培养三周,然后进行两个磷水平(P_1、P_2=250、2,000μM磷)与四个锌水平(Zn_1、zn_2、Zn_3、Zn_4=0、0.25、1、2μM锌)的二因素处理。水培于塑料盆中进行,每盆3株、重复3次。培养液经常更新。分别在第45、63和111天采
Generally believed that the performance of zinc deficiency and phosphorus / zinc concentration is closely related. But its physiological reason is inconclusive. In this paper, okra hydroponic experiments to explore this issue. Okra seedlings were cultured in complete nutrient solution for three weeks and then two phosphorus levels (P 1, P 2 = 250 and 2,000 μM phosphorous) and four zinc levels (Zn 1, zn 2, Zn 3, Zn 4 = , 2 [mu] M zinc). Hydroponics in plastic pots, 3 per pot, repeat 3 times. The culture fluid is often updated. Taken on the 45th, the 63rd and the 111th respectively