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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Heat stress: Impacts on fertility, productivity, and protein content of wheat cultivars

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De Melo, D. L. D. [1] ; Correa, A. A. P. [1] ; Moresco, E. R. [2] ; da Silva, F. M. [1] ; Val, B. H. P. [1] ; Di Mauro, A. O. [1] ; Uneda-Trevisoli, S. H. [1]
Total Authors: 7
[1] UNESP, Fac Agr Sci & Vet Sci, Dept Plant Prod, Jaboticabal, SP - Brazil
[2] Brazilian Agr Res Corp, Brasilia, DF - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Genetics and Molecular Research; v. 16, n. 4 DEC 7 2017.
Web of Science Citations: 0

The aim of this study was to analyze the effects of high temperatures on ear fertility, yield components and protein content of wheat cultivars. Therefore, 96 genotypes were subjected to two environments in a greenhouse: control and heat stress. Each environment had two replicates, totalling 192 plots. The evaluations were: number of ear per plant, number of ear per pot, ear weight, number of grains per ear, number of sterile spikelet's, number of viable grains, grain weight and protein content. Principal component analysis (PCA) and genetic and phenotypic correlations were performed. The results showed a significant drop in productivity of the genotypes subjected to heat stress as well as significant increase in the number of sterile spikelet's. The PCA allowed the selection of nine promising genotypes for cultivation in environments with high temperatures with basis on these traits, especially the cultivars CD 104, CD 122 and TBIO Itaipu. (AU)

FAPESP's process: 14/21127-1 - Temperature effect on production components and technological quality in wheat varieties (Triticum aestivum)
Grantee:Douglas Luiz Delfino de Melo
Support type: Scholarships in Brazil - Scientific Initiation