Effect of foliar sprays of amino acids and potassium on nitrogen-metabolising enzymes, growth and yield of rice

IF 0.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Biology and Environment-Proceedings of the Royal Irish Academy Pub Date : 2022-01-01 DOI:10.3318/bioe.2021.08

Seyed Hossein Mirtaleb, Yosoof Niknejad, H. Fallah

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引用次数: 2

Abstract

Abstract:A field trial was conducted to determine the effect of foliar applications of amino acids (AA) and potassium (K) on photosynthetic pigments, nitrogen metabolising enzymes, growth and yield of the rice variety ‘Tarom mahali’. The trial, which was comprised of four treatments (control, AA, K and AA+K) using randomised complete block design with three replications, was conducted at the Rice Research Institute of Iran (Amol). Data gathered during 2018 and 2019 showed that the foliar spray of AA and AA+K increased the concentration of photosynthetic pigments, N uptake in grain and straw, and the activity of glutamine synthetase and glutamate synthase, whilst reducing the activity of nitrate reductase and nitrite reductase. The foliar application of AA+K also significantly increased plant height, spike length, grain number, 1000-grain weight, grain yield, straw yield and harvest index. Therefore, it can be concluded that the combined spray of AA and K can be a suitable practice for improving the yield of rice along with a reduction in the environmental pollution.

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叶面喷施氨基酸和钾对水稻氮素代谢酶、生长和产量的影响

摘要/ Abstract摘要:通过田间试验，研究了叶面施氨基酸(AA)和钾(K)对水稻品种‘Tarom mahali’光合色素、氮代谢酶、生长和产量的影响。该试验在伊朗水稻研究所(Amol)进行，采用随机完全区组设计，包括4个处理(对照、AA、K和AA+K)，有3个重复。2018年和2019年的数据显示，AA和AA+K叶面喷施增加了籽粒和秸秆光合色素浓度、氮吸收以及谷氨酰胺合成酶和谷氨酸合成酶的活性，降低了硝酸盐还原酶和亚硝酸盐还原酶的活性。叶面施用AA+K也显著提高了水稻株高、穗长、粒数、千粒重、籽粒产量、秸秆产量和收获指数。综上所述，AA与K复合喷施是一种既能提高水稻产量又能减少环境污染的适宜做法。

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来源期刊

Biology and Environment-Proceedings of the Royal Irish Academy 环境科学-环境科学

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： The journal aims to offer a broad coverage of the subject area, including the following: - biology and ecology of the Irish flora and fauna - microbial ecology - animal, plant and environmental physiology - global change - palaeoecology and palaeoclimatology - population biology; conservation of genetic resources - pollution and environmental quality; ecotoxicology - environmental management - hydrology - land use, agriculture, soils and environment. Submissions on other relevant topics are also welcome, and papers of a cross-disciplinary nature are particularly encouraged.