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首页> 外文期刊>Russian Journal of Plant Physiology >Effect of zinc sulfate and boric acid on the hormonal status of potato plants in relation to tuberization
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Effect of zinc sulfate and boric acid on the hormonal status of potato plants in relation to tuberization

机译：硫酸锌和硼酸对马铃薯块茎的激素状况的影响

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摘要

Potato (Solanum tuberosum L.) plants were grown in a greenhouse using zinc- and boron-deficient soil. The effects of seed-tuber treatment with 3 mM zinc sulfate and 8 mM boric acid on the content and ratio of phytohormones in the leaves and mature tubers, the indices of photosynthetic activity, the rate and NaF-sensitivity of respiration, and the tuber growth were studied. Zinc-sulfate treatment shifted the hormonal balance toward a substantial increase in the cytokinin content and the cytokinin/ABA ratio, as well as a decrease in the IAA/cytokinin ratio. Boric-acid treatment resulted in an increase in the IAA content and IAA/cytokinin ratio. Zinc-sulfate treatment abolished the apical dominance and increased the tuber weight due to their increased number and the number of phellem (cork) cell layers. Boric-acid treatment increased cell diameter in the tuber perimedullary zone; an increase in tuber weight per plant was related to tuber growth. A relationship between changes in the plant hormonal status induced by zinc-sulfate and boric-acid treatments and the activity of physiological processes is discussed.
机译：马铃薯（Solanum tuberosum L.）植物在温室中使用锌和硼缺乏的土壤种植。 3 mM硫酸锌和8 mM硼酸处理的块茎对叶片和成熟块茎中植物激素的含量和比率，光合活性指标，呼吸速率和NaF敏感性以及块茎生长的影响被研究了。硫酸锌治疗使激素平衡朝着细胞分裂素含量和细胞分裂素/ ABA比的显着增加以及IAA /细胞分裂素比的降低转移。硼酸处理导致IAA含量和IAA /细胞分裂素比率的增加。硫酸锌处理消除了根尖，并增加了块茎的重量，原因是块茎的数量和生胶（软木）细胞层的数量增加。硼酸处理增加了块茎周围区域的细胞直径;单株块茎重量的增加与块茎的生长有关。讨论了硫酸锌和硼酸处理引起的植物激素状态变化与生理过程活性之间的关系。

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