Wheat response to foliar application of salicylic acid at different sowing dates

IF 1 Q3 AGRONOMY

Journal of Crop Improvement Pub Date : 2021-09-03 DOI:10.1080/15427528.2021.1971131

B. Jatana, H. Ram, N. Gupta, H. Kaur

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引用次数: 4

Abstract

ABSTRACT Temperature rise in March induces forced maturity in wheat (Triticum aestivum L.), which generally reduces the grain-filling period under North Indian conditions. A field experiment was conducted at the Punjab Agricultural University, Ludhiana, India, during 2015–16 and 2016–17 to evaluate the effect of salicylic acid on plant growth, physiological parameters, and grain yield of two wheat cultivars sown at different dates. A split-split-plot design was used, with sowing dates (November 5, November 20, and December 5) as main plots, wheat cultivars (WH1105, PBW677) as sub-plots, and salicylic acid foliar treatments (control, water spray, salicylic acid 75 and 100 mg l−1) as sub-sub plots. The highest tiller count, atLEAF-chlorophyll index, pollen viability, number of grains ear−1, 1000-grain weight, biological and grain yield were recorded for the November 5 sowing date. Salicylic acid foliar application at 75 and 100 mg l−1 increased the grain-filling period, improved the normalized difference vegetative index (NDVI), pollen viability, number of grains ear−1, proline content, 1000-grain weight, and grain yield. We concluded that wheat cultivars WH1105 and PBW677 can be grown successfully by sowing early (November 5) and that foliar application of salicylic acid at 75 mg l−1 can improve the wheat grain yield under north Indian conditions.

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不同播期小麦对叶面施用水杨酸的响应

摘要：在北印度条件下，三月气温升高会导致小麦被迫成熟，这通常会缩短灌浆期。2015-16年和2016-17年，在印度卢迪亚纳的旁遮普邦农业大学进行了一项田间试验，以评估水杨酸对不同日期播种的两个小麦品种的植物生长、生理参数和粮食产量的影响。以播种日期（11月5日、11月20日和12月5日）为主，小麦品种（WH1105、PBW677）为次，水杨酸叶面处理（对照、喷水、水杨酸75和100 mg l−1）为次。11月5日播种期的分蘖数、atLEAF叶绿素指数、花粉活力、穗粒数−1000粒重、生物产量和籽粒产量最高。75和100 mg l−1的水杨酸叶面施用增加了籽粒灌浆期，改善了归一化差异营养指数（NDVI）、花粉活力、穗数−1、脯氨酸含量、1000粒重和籽粒产量。我们得出的结论是，小麦品种WH1105和PBW677可以通过早播（11月5日）成功种植，在北印度条件下，叶面施用75 mg l−1的水杨酸可以提高小麦产量。

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

Journal of Crop Improvement Multiple-

CiteScore

3.30

自引率

7.70%

发文量

期刊介绍： Journal of Crop Science and Biotechnology (JCSB) is a peer-reviewed international journal published four times a year. JCSB publishes novel and advanced original research articles on topics related to the production science of field crops and resource plants, including cropping systems, sustainable agriculture, environmental change, post-harvest management, biodiversity, crop improvement, and recent advances in physiology and molecular biology. Also covered are related subjects in a wide range of sciences such as the ecological and physiological aspects of crop production and genetic, breeding, and biotechnological approaches for crop improvement.