Field evaluation of At DREB 2A CA overexpressing sugarcane for drought tolerance
Climate change is undoubtedly altering the atmosphere, occasioning extreme temperatures that can cause weather calamities such as droughts and floods. Among the major constraints limiting crop production, drought is one of the most important. Sugarcane ( Saccharum spp. hybrid) is considered an impor...
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Veröffentlicht in: | Journal of agronomy and crop science (1986) 2019-12, Vol.205 (6), p.545-553 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Climate change is undoubtedly altering the atmosphere, occasioning extreme temperatures that can cause weather calamities such as droughts and floods. Among the major constraints limiting crop production, drought is one of the most important. Sugarcane (
Saccharum
spp. hybrid) is considered an important economic crop not only for sugar production, but also for ethanol generation, serving as an expandable green alternative to crude oil use. To take advantage of the use of sugarcane as renewable source for bioethanol production, it is important to increase its productivity without increasing land use, which includes cultivation under hostile conditions, such as water‐limited environments. Previously, we demonstrated that stress‐inducible overexpression of the transcription factor
At
DREB
2A
CA
conferred drought tolerance in sugarcane subjected to water deficit under greenhouse conditions. In the present work, the At
DREB
2A
CA
transgenic sugarcane lines were evaluated in the field in two representative seasonally dry regions of Brazil. The results demonstrated that the At
DREB
2A
CA
sugarcane lines presented higher yield and productivity when compared to non‐transformed plants under drought, representing a suitable strategy for the development of new drought‐tolerant cultivars. |
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ISSN: | 0931-2250 1439-037X |
DOI: | 10.1111/jac.12341 |