effect of drought on agronomic traits of rice and wheat: a meta-analysis

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ID: 135932
2018
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Abstract
Drought has been one of the most important limiting factors for crop production, which deleteriously affects food security worldwide. The main objective of the present study was to quantitatively assess the effect of drought on the agronomic traits (e.g., plant height, biomass, yield, and yield components) of rice and wheat in combination with several moderators (e.g., drought stress intensity, rooting environment, and growth stage) using a meta-analysis study. The database was created from 55 published studies on rice and 60 published studies on wheat. The results demonstrated that drought decreased the agronomic traits differently between rice and wheat among varying growth stages. Wheat and rice yields decreased by 27.5% and 25.4%, respectively. Wheat grown in pots showed greater decreases in agronomic traits than those grown in the field. Rice showed opposite growing patterns when compared to wheat in rooting environments. The effect of drought on rice increased with plant growth and drought had larger detrimental influences during the reproductive phase (e.g., blooming stage, filling stage, and maturity). However, an exception was found in wheat, which had similar decreased performance during the complete growth cycle. Based on these results, future droughts could produce lower yields of rice and wheat when compared to the current drought.
Reference Key
zhang2018internationaleffect Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Jinmeng Zhang;Shiqiao Zhang;Min Cheng;Hong Jiang;Xiuying Zhang;Changhui Peng;Xuehe Lu;Minxia Zhang;Jiaxin Jin
Journal archives of biochemistry and biophysics
Year 2018
DOI
10.3390/ijerph15050839
URL
http://www.mdpi.com/1660-4601/15/5/839
Keywords
drought caregiver yield crop nutrition knowledge left-behind children food practice

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