在中国西北部的玉米中,在不同酸盐-比率下,化后的干物和的积累,分离和转移
Bing Wu1,2, Zhengjun Cui2,3, Effah Zechariah4
1College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China.
Frontiers in plant science
|April 3, 2024
概括
3:1的酸盐与比率通过增强代谢和碳水化合物积累,显著提高了玉米的产量. 这种优化的肥策略改善了营养物质的转移,导致中国西北地区的粮食产量增加.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 土壤科学 土壤科学
背景情况:
- (N) 的可用性,特别是酸盐 (NO3-) 和 (NH4+) 之间的平衡,对于玉米的生产率至关重要.
- 了解不同的N形式如何影响解毒后的代谢和碳水化合物动态对于优化作物产量至关重要.
研究的目的:
- 调查不同酸盐-比对玉米中解毒后干物质 (DM) 和N的积累,分割和转移的影响.
- 为了确定不同源对代谢酶活动和非结构性碳水化合物积累的影响.
主要方法:
- 进行了为期3年的实地实验,使用了四种酸盐-比: 1:0 (N1), 1:1 (N2), 1:3 (N3) 和 3:1 (N4).
- 测量包括解后干物质和积,分离和转移,以及关键酶活动和非结构性碳水化合物水平.
主要成果:
- 3:1的酸盐-比率 (N4) 显著增强了代谢酶活动 (酸盐减少酶,酸盐减少酶,谷氨酸合成酶,谷氨酸氧酸氨基转移酶) 和非结构性碳水化合物积累.
- 这种N4处理促进了干物质和N从植物性器官转移到生殖器官,提高了转移效率,并促进了化前同化物对谷物的贡献.
- 在N4处理下,谷物产量在2015年增加了3.31%-9.94%,在2016年增加了68.6%-26.30%,在2017年增加了8.292%-36.08%与其他比率相比.
结论:
- 酸盐-比为3:1优化了代谢和碳水化合物积累在玉米在解后的时期.
- 这种比率增强了干物质和转移,从而大大提高了谷物产量.
- 研究结果建议在中国西北部的高产和可持续的玉米生产战略中使用3:1的酸盐-比.
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