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Phenotyping for abiotic stress tolerance in maize heat stress: a field manual

Author: Zaidi, P.H.
Author: Zaman-Allah, M.
Author: Trachsel, S.
Author: Seetharam, K.
Author: Cairns, J.E.
Author: Vinayan, M.T.
Year: 2016
URI: http://hdl.handle.net/10883/4821
Abstract: Tolerance to heat stress was previously not a priority trait in tropical maize compared to tolerance to other abiotic stresses such as drought and low nitrogen. However, in recent years, heat has been identified as one of the key abiotic stresses for maize in the tropics. This is due to the fact that maize is grown year round, including during the summer and spring seasons, when it is likely to face heat stress. Also, climate change effects experienced during recent years in the tropics have resulted in increased temperatures, both maximum (Tmax) and minimum (Tmin) during key maize crop stages in the lowland tropics. This manual was developed to help maize breeders and field technicians in South and Southeast Asia, Latin America and sub-Saharan Africa to perform heat screening/ phenotyping and identify genotypic variability in tropical maize for use in breeding programs aimed at developing heat tolerant tropical maize germplasm. This manual will enable them to: Identify suitable field sites for heat stress phenotyping. Screen for heat tolerance using key secondary traits along with grain yield. Generate high quality phenotyping data by reducing experimental error through proper trial management.
Format: PDF
Language: English
Publisher: CIMMYT
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Handbook
Place of Publication: Hyderabad, India
Pages: iv, 32 pages
Agrovoc: DROUGHT
Agrovoc: MAIZE
Agrovoc: HEAT STRESS


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