Journal
CURRENT OPINION IN BIOTECHNOLOGY
Volume 23, Issue 2, Pages 243-250Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2011.11.003
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Water availability is a significant constraint to crop production, and increasing drought tolerance of crops is one step to gaining greater yield stability. Excellent progress has been made using models to identify pathways and genes that can be manipulated through biotechnology to improve drought tolerance. A current focus is on translation of results from models in controlled environments to crops in the field. Field testing to demonstrate improved yields under water-limiting conditions is challenging and expensive. More extensive phenotyping of transgenic lines in the greenhouse may contribute to improved predictions about field performance. It is possible that multiple mechanisms of drought tolerance may be needed to provide benefit across the diversity of water stress environments relevant to economic yield.
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