作物
干旱胁迫
农学
生物
压力(语言学)
环境科学
语言学
哲学
作者
Shakeel Ahmad Anjum,Umair Ashraf,Ali Zohaib,Mohsin Tanveer,Muhammad Kashif Naeem,Iftikhar Ali,Tahira Tabassum,Usman Nazir
出处
期刊:Zemdirbyste-agriculture
[Lithuanian Research Centre for Agriculture and Forestry]
日期:2017-08-07
卷期号:104 (3): 267-276
被引量:110
标识
DOI:10.13080/z-a.2017.104.034
摘要
Water deficit conditions are a bearing on plant growth and development leading to diminished crop productivity. However, improving the crop productivity is need of the time to sustain the food security under ever increasing world population. Drought episodes are increasing with varying intensity and duration. Drought stress imposes alterations in crucial plant growth and developmental processes, including germination, plant height, stem diameter, number of leaves, leaf size and area, dry matter production and partitioning, flower and fruit production, and maturity. Nonetheless, plants show some morphological changes to cope with drought stress by lowering water loss, enhanced water uptake and maintenance of tissue water status. Some plants complete their life cycle early before the onset of drought to escape water deficit conditions. Identification of effects of drought stress on morphological attributes and morphological changes in response to drought can be promising for selection and breeding of drought resistant genotypes.
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