叶面施锌提高鹰嘴豆繁殖效率

G. C. Pathak, B. Gupta, N. Pandey
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引用次数: 58

摘要

缺锌不仅是造成作物生产力低下的原因,而且还会导致种子中锌含量低,从而导致膳食锌摄入量不足。为研究叶面施锌对提高鹰嘴豆产量和种子锌含量的影响,在玻璃棚条件下,将鹰嘴豆种植在缺锌(0.2µM)和足锌(1µM)的精砂培养中。在生殖期开始之前,将锌作为0.1% ZnSO4喷施于锌充足和缺锌植株的叶面。研究了不同锌处理下植物的花粉和柱头结构及其对受精和种子产量的影响。锌缺乏引起花败育、花粉和胚珠不育,导致低结实率和最终产量。在花期开始时对缺锌植株叶面施用ZnSO4可部分逆转缺锌对花粉柱头形态和花粉育性的不利影响,并大大提高植株的种子产量。叶面施锌不仅提高了缺锌植株种子的粗壮性和活力,而且提高了缺锌植株和足锌植株种子的锌含量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improving reproductive efficiency of chickpea by foliar application of zinc
Zinc deficiency is not only the cause of low productivity of crops, but it also results in low zinc content in seeds, which leads to poor dietary zinc intake. To study the effect of zinc foliar application on improving plant yield and seed zinc content for human consumption, chickpea plants were raised in refined sand culture with deficient (0.2 µM) and sufficient (1µM) supply of zinc under glass-house conditions. Prior to initiation of the reproductive phase, zinc was applied as 0.1% ZnSO4 foliar spray to both zinc sufficient and deficient plants. The plants exposed to different zinc treatments were studied for pollen and stigma structure and their involvement in fertilization and seed yield. Zinc deficiency induces flower abortion, pollen, and ovule infertility leading to low seed set and ultimately its yield. Foliar application of ZnSO4 to zinc deficient plants at the time of initiation of flowering partially reverses the adverse effect of zinc deficiency on pollen-stigma morphology, pollen fertility, and greatly enhanced seed yield of plants. Zinc foliar application improved not only the boldness and vigor of seeds in zinc-deficient plants, but also the seed zinc content in zinc-deficient seeds as well as the sufficient ones.
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