American Journal of Plant Sciences

Volume 5, Issue 11 (May 2014)

ISSN Print: 2158-2742   ISSN Online: 2158-2750

Google-based Impact Factor: 1.42  Citations  h5-index & Ranking

Repeatability of Pre-Harvest Sprouting in Wheat

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DOI: 10.4236/ajps.2014.511174    4,288 Downloads   5,154 Views  Citations

ABSTRACT

This study aimed to detect genotypic differences in the resistance to sprouting of wheat grains, evaluate the effectiveness of different methods for inducing sprouting and identify, using repeatability estimates, the minimum number of spikes necessary for the adequate evaluation of the percentage of grain sprouting in the spike in order to assist in the selection of superior genotypes in breeding programs. Spikes from four wheat cultivars (Frontana, IPR Catuara, Quartzo and BRS 220) were evaluated using three methods for inducing grain sprouting in the spike (water immersion, rainfall simulation and germination chamber). To determine the most efficient method, repeatability coefficients were estimated through analysis of variance, principal components analysis and structural analysis based on correlation and covariance matrices. The induction of sprouting by immersion in water was the most effective method for indicating genotypic differences and may be used in breeding programs for this purpose. The repeatability method based on the components of covariance was more efficient. A minimum of 11 spikes is required to make a high-reliability estimate of the percentage of sprouted grains in the spike.

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Pagliosa, E. , Carpentieri-Pipolo, V. , Garbuglio, D. , Oro, T. , de Almeida Lopes, K. and Zucareli, C. (2014) Repeatability of Pre-Harvest Sprouting in Wheat. American Journal of Plant Sciences, 5, 1607-1613. doi: 10.4236/ajps.2014.511174.

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[1] IPR CATUARA TM-new cultivar of high gluten wheat
Crop Breeding and Applied Biotechnology, 2015
[2] CULTIVAR RELEASE
2015

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