Growth and Development of Soybean Plants with the Pat Gene under different Glufosinate Rates

Q2 Agricultural and Biological Sciences
T. T. Mundt
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引用次数: 0

Abstract

The pat gene confers tolerance to glufosinate in transgenic soybean plants; however, some aspects of the selectivity of this herbicide need to be better elucidated. This study aimed to evaluate the development of soybean plants with the pat gene under the application of different glufosinate rates. The experiment was conducted in a greenhouse and included seven different glufosinate rates of and two soybean cultivars (LL0291 and LL0767) with the pat gene, with four replications in a completely randomized design. Glufosinate was applied at the V4 stage (4 nodes on the main stem with fully developed leaves beginning with the unifoliolate nodes) of soybean, and the variables analyzed were: soybean injury, chlorophyll index, plant height, dry and fresh matter of shoots and roots, wet nodules, dry nodules, and total number of nodules. It was found that for both cultivars, the maximum recommended glufosinate rate of 700 g of active ingredient (ai) ha-1 was safe, rates above 1,250 g ai ha-1 may interfere with development, especially biomass accumulation, and, in general, cultivar LL0291 exhibited more injuries than cultivar LL0767. The glufosinate-tolerant soybean (with pat gene) is a great option for farmers, but care should be taken with respect to rates above the maximum recommended in the package insert, so that there is no damage to soybean. © 2021 Friends Science Publishers
不同草甘膦用量下含Pat基因大豆植株的生长发育
pat基因赋予转基因大豆植株对草膦的耐受性;然而,这种除草剂的选择性的某些方面需要更好地阐明。本研究旨在评估pat基因大豆植株在不同草酸盐用量下的发育情况。该实验在温室中进行,包括七种不同的草酸盐比率和两个具有pat基因的大豆品种(LL0291和LL0767),在完全随机设计中进行了四次复制。在大豆V4期(主茎上4个节,叶片完全发育,从单叶节开始)施用草膦,分析的变量为:大豆损伤、叶绿素指数、株高、地上部和根部干鲜物质、湿结节、干结节和结节总数。研究发现,对于这两个品种,700 g活性成分(ai)ha-1的最大推荐草酸盐速率是安全的,高于1250 g ai ha-1的速率可能会干扰发育,尤其是生物量的积累,并且一般来说,品种LL0291比品种LL0767表现出更多的伤害。耐草膦的大豆(带有pat基因)对农民来说是一个很好的选择,但应注意高于包装插页中建议的最高价格,以免对大豆造成损害。©2021 Friends Science出版社
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
International Journal of Agriculture and Biology
International Journal of Agriculture and Biology AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
1.70
自引率
0.00%
发文量
40
审稿时长
5 months
期刊介绍: Information not localized
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