植物生长调节剂可改善机械插秧后水稻秧苗根系的生长并提高谷物产量

IF 1.6 4区 农林科学 Q1 Agricultural and Biological Sciences
Jichao Tang, Zhimin Zhang, Shahbaz Tung, Bilin Lu, Wenjia Yang
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引用次数: 0

摘要

摘要 提高秧苗质量和促进移栽后根系生长是提高机插秧产量的关键。在此,我们研究了各种植物生长调节剂对杂交水稻和常规水稻品种的影响。处理包括双二乙基氨基乙基己酸酯(DA-6,10 mg L-1)、3-吲哚-丁酸钾 + 1-萘基乙酸钾 + 6-苄基氨基嘌呤组合(C3、50 + 50 + 10 毫克/升)、3-吲哚丁酸钾 + 1-萘基乙酸钾 + 1-三羟甲基丙烷(C4,50 + 50 + 50 毫克/升)、3-吲哚丁酸钾 + 1-萘基乙酸钾 + 1.移栽前 3 天或 10 天喷洒 3-吲哚丁酸钾 + 1-萘乙酸钾 + 1.8%硝基酚钠(C5,50 + 50 + 1 毫克/升),以及 3-吲哚丁酸钾 + 1-萘乙酸钾 + 1.8%硝基酚钠 + DA-6 组合(C6,50 + 50 + 1 + 10 毫克/升)。无论使用哪种植物生长调节剂,移栽前 10 天喷洒的秧苗在返青期的白根和总根数量都较多,谷物产量也有所增加。C6 组合是最有效的处理方法,它能促进杂交水稻和常规水稻秧苗的生长,加快白根和总根的生长速度,增加返青期最长白根的长度,最终提高谷物产量。我们的研究结果表明,移栽前施用植物生长调节剂组合对水稻秧苗的生长有积极影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Plant growth regulators improve root growth of rice seedlings after mechanical transplanting and increase grain yield
Summary Enhancing seedling quality and promoting root growth post-transplantation are crucial for improving mechanically transplanted rice productivity. Here we investigated the impact of various plant growth regulators on hybrid and conventional rice varieties. Treatments, including two-diethylaminoethyl hexanoate (DA-6, 10 mg L−1), a combination of potassium 3-indole-butyrate + potassium 1-naphthylacetate + 6-benzylaminopurine (C3, 50 + 50 + 10 mg L−1), potassium 3-indole-butyrate + potassium 1-naphthylacetate + 1-triacontanol (C4, 50 + 50 + 50 mg L−1), potassium 3-indole-butyrate + potassium 1-naphthylacetate + 1.8% sodium nitrophenolate (C5, 50 + 50 + 1 mg L−1), and a combination of potassium 3-indole-butyrate + potassium 1-naphthylacetate + 1.8% sodium nitrophenolate + DA-6 (C6, 50 + 50 + 1 + 10 mg L−1), were sprayed either 3 or 10 days before transplanting. Seedlings sprayed 10 days before transplanting exhibited a higher number of white roots and total roots at the returning green stage, along with increased grain yield, irrespective of the plant growth regulator used. The C6 combination emerged as the most effective treatment, enhancing the growth of both hybrid and conventional rice seedlings, accelerating the growth rate of white roots and total roots, and increasing the length of the longest white root during the greening period, ultimately resulting in higher grain yield. Our findings demonstrate that pre-transplantation application of a combination of plant growth regulators positively influences rice seedling growth.
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来源期刊
Experimental Agriculture
Experimental Agriculture 农林科学-农艺学
CiteScore
2.50
自引率
6.20%
发文量
29
审稿时长
24 months
期刊介绍: With a focus on the tropical and sub-tropical regions of the world, Experimental Agriculture publishes the results of original research on field, plantation and herbage crops grown for food or feed, or for industrial purposes, and on farming systems, including livestock and people. It reports experimental work designed to explain how crops respond to the environment in biological and physical terms, and on the social and economic issues that may influence the uptake of the results of research by policy makers and farmers, including the role of institutions and partnerships in delivering impact. The journal also publishes accounts and critical discussions of new quantitative and qualitative methods in agricultural and ecosystems research, and of contemporary issues arising in countries where agricultural production needs to develop rapidly. There is a regular book review section and occasional, often invited, reviews of research.
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