Effect of Indoleacetic Acid and Zinc Sulphate Application on Growth and Some Physiological Parameters of Cowpea (Vigna sinensis Savi) Plants
Effect of Indoleacetic Acid and Zinc Sulphate Application on Growth and Some Physiological Parameters of Cowpea (Vigna sinensis Savi) Plants
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吲哚乙酸和硫酸锌施用对豇豆植株生长及部分生理参数的影响
DOI：
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发表时间：
2019
影响因子：
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通讯作者：
A. Anwar
中科院分区：
文献类型：
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作者：
Ikbal Muhammed Gharib Tahir;Sargul Ahmad Khudur;A. Anwar
本研究在伊拉克科亚市对加州黑眼豇豆（VignasinensisSavi）进行了叶面喷施硫酸锌（ZS）和吲哚乙酸（IAA）的析因试验。结果表明，ZS和IAA的施用对所研究的性状有显著影响。100 ppm的IAA显著增加了叶片中叶绿素a、B和总叶绿素含量，但降低了总类胡萝卜素含量。结果表明，与除1.0g/LZS处理外的其他处理相比，当ZS用量增加到2.0g/L时，叶面积显著增加。叶面喷施IAA显著提高了植株地上部和根系的干物质含量以及单株结瘤数。结果表明，与对照和IAA处理相比，ZS的施用浓度与叶片锌含量呈显著正相关，但与其它处理相比，IAA的施用使植株叶片中K和Zn含量降低。最后，根据上述结果，IAA对增加叶片正反两面气孔数量的最佳比例为75 ppm。
This study was conducted in Koya city, Iraq on cowpea (Vigna sinensis Savi) plants California black eye variety by factorial experiment including the effects of foliar spraying of Zinc Sulphate ZnSO4.7H2O (ZS) or the plant growth regulator Indoleacetic Acid C10H9NO2 (IAA). Analysis of data revealed that ZS and IAA application affects significantly on the studied traits. 100 ppm of IAA increased significantly the leaves content of each of chlorophylls a, b, and total, although it decreased the content of total carotenoids. The results showed that the leaf area significantly increased by increasing the amount of ZS to 2.0 g/L compare with other treatments except 1.0 g/L ZS application. Foliar application of IAA increased significantly the dry matter percent of shoots and roots as well as the number of nodules per plant. It has been found that leaves content of zinc is related to the concentration of ZS applied significantly compared to the control and IAA treatments, however, the application of IAA caused to decrease K and Zn contents in leaf of the plants compared to other treatments. Finally, based on the results the best ratio of IAA for increased stomata number on the abaxial and adaxial leaves surfaces was 75 ppm.