Enhancing translocation and remobilization of zinc in wheat by the application of plant growth regulators

IF 0.9 4区生物学 Q4 PLANT SCIENCES

Israel Journal of Plant Sciences Pub Date : 2022-01-17 DOI:10.1163/22238980-bja10051

B. Mathpal, P. Srivastava, S. P. Pachauri, A. Shukla, N. Pant, S. C. Shankhdhar

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引用次数: 1

Abstract

A pot experiment was carried out to evaluate the impact of plant growth regulators (PGRs) on translocation and accumulation of zinc (Zn) in grains of four wheat varieties of varying Zn sensitivities. Different concentrations of two (gibberellic acid and cytokinin) PGRs viz., control, 10 ppm gibberellic acid (GA), 20 ppm gibberellic acid (GA), 10 ppm cytokinin (kinetin), 20 ppm cytokinin (kinetin), 10 ppm gibberellic acid (GA) + cytokinin (kinetin), 20 ppm gibberellic acid (GA) + cytokinin (kinetin) were applied under different Zn regimes (control), soil application of 5 mg Zn kg-1 soil and soil application of 5 mg Zn kg-1 soil + foliar applications of 0.5% ZnSO4.7H2O + 0.25% lime). Four contrasting wheat varieties i.e., UP262 & PBW175 (Zn inefficient), UP2628 & UP2554 (Zn efficient); were tested for enzyme activities, yield attributes and Zn content in various plant parts. Regarding influence of PGR levels, the maximum CA and SOD activities were recorded under 20 ppm GA and control respectively. The grain yield, straw yield and grain Zn content was found to be the maximum under 10 ppm GA+cytokinin, 20 ppm GA and 20 ppm cytokinin respectively. Among all the methods used, soil along with foliar spray (Zn S+F) was found to be the most effective in improving all the crop parameters. Among varieties, the efficient sets of varieties (UP2628 & UP2554) performed better than Zn inefficient varieties. The use of plant growth regulators along with efficient delivery method could enhance the transport and accumulation of Zn in grains of wheat.

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应用植物生长调节剂促进小麦锌的转运和再动员

通过盆栽试验，评价了植物生长调节剂（PGRs）对不同锌敏感性的四个小麦品种籽粒锌转运和积累的影响。不同浓度的两种（赤霉酸和细胞分裂素）PGR，即对照，10 ppm赤霉酸（GA），20 ppm赤霉酸（GA），10 ppm细胞分裂素（激动素），20 ppm细胞分裂素（激动素），10 ppm赤霉素（GA）+细胞分裂素（激动素），20 ppm赤霉素（GA）+细胞分裂素（激动素）在不同锌制度下施用（对照），土壤施用5 mg-Zn-kg-1土壤和5 mg Zn kg-1土壤+0.5%ZnSO4.7H2O+0.25%石灰的叶面施用）。四个对照小麦品种，即UP262和PBW175（锌低效）、UP2628和UP2554（锌高效）；测定了植物各部位的酶活性、产量特性和锌含量。关于PGR水平的影响，最大CA和SOD活性记录在20 ppm GA和对照。籽粒产量、秸秆产量和籽粒锌含量在10 ppm GA+细胞分裂素，20 ppm GA和20 ppm细胞分裂素。在所有使用的方法中，土壤和叶面喷雾（ZnS+F）在改善所有作物参数方面最有效。在品种中，高效组合品种（UP2628和UP2554）表现优于锌低效品种。使用植物生长调节剂和有效的输送方法可以增强锌在小麦籽粒中的运输和积累。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Israel Journal of Plant Sciences 生物-植物科学

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Israel Journal of Plant Sciences is an international journal of extensive scope that publishes special issues dealing with all aspects of plant sciences, including but not limited to: physiology, cell biology, development, botany, genetic