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由于1,2,4-三二的应激作用,日本大米产量下降的主要原因是子数量的减少

Feiyu Yan^1,2, Guoliang Zhang^1,2,3, Le Liu¹

¹School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China.

Frontiers in plant science

|July 29, 2024

概括

持久性有机污染物如1,2,4-三二 (TCB) 损害了日本大米的产量. 减少恐慌数量是主要原因,但耐受性指数可以帮助繁殖和种植.

科学领域:

农业科学农业科学
环境科学环境科学
植物科学植物科学

背景情况:

持久性有机污染物 (POP) 对作物生长和发展产生负面影响.
1,2,4-三二 (TCB) 是一种广泛使用的二,已知对日本大米产量有影响,尽管研究有限.

研究的目的:

研究TCB压力对日本大米产量,产量组成部分和TCB积累的影响.
评估传统耐受性指数的有效性,以评估日本大米的TCB应激耐受性.

主要方法:

为TCB压力实验选择了28种传统的日本大米品种.
监测植物的高度,根的长度,SPAD值和干重.
在各种大米组织中量化的TCB积累.
评估产量组件包括谷数,每谷的尖头,谷填充和谷重量.

主要成果:

TCB压力显著抑制了日本大米的生长,影响了植物的高度,根的长度,SPAD和干重.
在压力下,TCB积累在米组织中大幅增加.
产量减少主要是由于减少了子数量,随后减少了每子的尖头,谷物填充和谷物重量.
传统的耐受性指数有效评估了日本大米对TCB压力的耐受性.

结论:

TCB压力显著降低了日本大米的产量,其中减少的恐慌数量是主要的因素.
传统的耐受性指数可靠地评估了日本大米的TCB应激耐受性.
这些发现为培育和种植耐TCB的日本大米品种提供了实质性的见解.

关键词:

1,2,4-三二二二二二四二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二增长的增长增长的增长增长的增长.日本的米饭是日本的米饭.收益率收益率收益率收益率收益率组成部分的收益率组成部分.

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