Plant Nutrition and Stress Physiology Laboratory, Department of Botany, University of Lucknow, Lucknow 226007, India.
J Trace Elem Med Biol. 2013 Jan;27(1):58-64. doi: 10.1016/j.jtemb.2012.07.003. Epub 2012 Sep 1.
An experiment was conducted under glass house condition to study the effect of foliar application of boron (B) on reproductive biology and seed quality of black gram (Vigna mungo). Black gram (V. mungo L. var. DPU-88-31) was grown under controlled sand culture condition at deficient and sufficient B levels. After 32 days of sowing B deficient plants were sprayed with three concentrations of B (0.05%, 0.1% and 0.2% borax) at three different stages of reproductive development, i.e. prior to flowering, initiation of bud formation and after bud formation. Deficient B supply decreased the anther and pollen size, pollen tube growth, pollen viability as well as stigmatic receptivity which were increased by foliar B application. Foliar spray at all the three concentrations and at all stages increased the yield parameters like number of pods, pod size and number of seeds formed per plant. Foliar B application also improved the seed yield and seed quality in terms of storage seed proteins (albumin, globulin, glutenin and prolamin) and carbohydrates (sugars and starch) in black gram. The foliar application of B in appropriate doses (particularly 0.1%) after bud formation made quantitative and qualitative improvement in seed yield of black gram by supplementing additional/critical B requirements for reproductive development.
在温室条件下进行了一项实验，研究叶面喷施硼（B）对绿豆（Vigna mungo）生殖生物学和种子质量的影响。在缺乏和充足 B 水平下，在受控砂培条件下种植绿豆（V. mungo L. var. DPU-88-31）。播种 32 天后，对缺硼植物进行了三种浓度的 B（0.05%、0.1%和 0.2%硼砂）叶面喷施，在生殖发育的三个不同阶段进行，即在开花前、芽形成开始时和芽形成后。缺硼供应降低了花药和花粉大小、花粉管生长、花粉活力以及柱头接受性，叶面 B 处理可提高这些参数。在所有三个浓度和所有阶段进行叶面喷雾均可增加产量参数，如豆荚数、豆荚大小和每株形成的种子数。叶面 B 处理还可以通过补充生殖发育所需的额外/关键 B 来提高绿豆的种子产量和种子质量，包括种子贮藏蛋白质（白蛋白、球蛋白、谷蛋白和醇溶蛋白）和碳水化合物（糖和淀粉）。在芽形成后适当剂量（特别是 0.1%）叶面喷施 B 可通过补充生殖发育所需的额外/关键 B 来提高绿豆的种子产量和种子质量。
