文献类型： 外文期刊

作者： Ye, Jun ¹ ; Yang, Wenjia ¹ ; Li, Yulin ¹ ; Wang, Shiwen ¹ ; Yin, Lina ¹ ; Deng, Xiping ¹ ;

作者机构： 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China

2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China

3.Inner Mongolia Acad Agr & Anim Husb Sci, Zhaojun Rd 22, Hohhot 010031, Peoples R China

4.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China

5.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China

关键词： melatonin; photosynthesis; tiller number; wheat; yield

期刊名称：AGRONOMY-BASEL （ 影响因子：3.417； 五年影响因子：3.64 ）

ISSN：

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： The effects of exogenous application of melatonin (MEL) on promoting plant growth and alleviating environmental stresses are already known, but the potential value in crop production is still poorly understood. In this study, the effects of seed pre-soaking with MEL on winter wheat (Triticum aestivum L.) growth and yield were investigated in a continuous two-year pot experiment and another year of field experimentation. Results showed that seed pre-soaking with different concentrations of MEL (10, 100 and 500 mu M) for 24 h increased grain yields per plant from 29% to 80% in pot experiment and increased grain yield per area from 4-19% in field experiment, compared with the controls. Further analysis showed that the beneficial effects of MEL on improving wheat grain yield can be ascribed to: (1) increased spike number by enhancing tiller number; (2) enhanced carbon assimilation capacity by maintaining large leaf area, high photosynthetic rate and delaying leaf senescence; (3) promoted growth in root system. The result of this study suggests that MEL could be considered as an effective plant growth regulator for improving grain production in winter wheat.