Source-Sink Relationships in Crop Plants and Their Influence on Yield Development and Nutritional Quality

被引：187

作者：

Smith, Millicent R. ^{[1
]}

Rao, Idupulapati M. ^{[2
,3
]}

Merchant, Andrew ^{[1
]}

机构：

[1] Univ Sydney, Sydney Inst Agr, Sch Life & Environm Sci, Fac Sci, Sydney, NSW, Australia

[2] Ctr Int Agr Trop, Cali, Colombia

[3] ARS, USDA, Natl Ctr Agr Utilizat Res, Peoria, IL USA

来源：

FRONTIERS IN PLANT SCIENCE | 2018年 / 9卷

基金：

澳大利亚研究理事会;

关键词：

abiotic stress; crop yield potential; environment; harvest index; photosynthesis; yield; HARVEST INDEX; DROUGHT RESISTANCE; IMPROVING PHOTOSYNTHESIS; PHENOTYPIC PLASTICITY; BIOLOGICAL YIELD; WATER DEFICITS; SEED; PHLOEM; WHEAT; GROWTH;

D O I：

10.3389/fpls.2018.01889

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

For seed crops, yield is the cumulative result of both source and sink strength for photoassimilates and nutrients over the course of seed development. Source strength for photoassimilates is dictated by both net photosynthetic rate and the rate of photoassimilate remobilisation from source tissues. This review focuses on the current understanding of how the source-sink relationship in crop plants influences rates of yield development and the resilience of yield and nutritional quality. We present the limitations of current approaches to accurately measure sink strength and emphasize differences in coordination between photosynthesis and yield under varying environmental conditions. We highlight the potential to exploit source-sink dynamics, in order to improve yields and emphasize the importance of resilience in yield and nutritional quality with implications for plant breeding strategies.

引用

页数：10

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