Wheat grain quality and its relationship with plant growth regulators | [Pakistan Journal of Agricultural Sciences • 2017]

Author(s):

1. Ali Rasaei: Department of Agronomy and Plant Breeding, Campus of Agriculture and Natural Resources, Razi University,Kermanshah,Iran

2. Saeid Jalali-Honarmand: Department of Agronomy and Plant Breeding, Campus of Agriculture and Natural Resources, Razi University,Kermanshah,Iran

3. Mohsen Saeidi: Department of Agronomy and Plant Breeding, Campus of Agriculture and Natural Resources, Razi University,Kermanshah,Iran

4. Mohammad-Eghbal Ghobadi: Department of Agronomy and Plant Breeding, Campus of Agriculture and Natural Resources, Razi University,Kermanshah,Iran

5. Shahrokh Khanizadeh: Ottawa Research and Development Centre, Agriculture and Agri-Food Canada,K1A 0C6,Canada

Abstract:

Because of its widespread consumption, bread wheat is an important cereal grain worldwide that is valued for its nutritional and economic properties. However, the quality of wheat is affected by various stresses and environmental conditions. This study investigated the effects of the exogenous application, in the early grain-filling stage, of different plant hormones (3-indoleacetic acid [IAA], gibberellic acid [GA3], and 6-benzylaminopurine [6-BAP]) and distilled water as the control on two wheat cultivars (Rijaw and Azar-2). The results showed that interaction effects of plant hormones × genotypes were significant on gluten index, total gluten and falling number. As well, grain-filling duration was affected by plant hormone and genotype. However, hectoliter weight was affected only by genotype. There was a positive relationship between gluten index and grain-filling duration in both years of the experiment. Overall, the application of plant hormones can increase wheat grainfilling duration under dry-land conditions, leading to increases in total gluten and gluten index.

Page(s): 123-127

DOI: 10.21162/PAKJAS/17.5474

Published: Journal: Pakistan Journal of Agricultural Sciences, Volume: 54, Issue: 1, Year: 2017

Keywords:

Rainfed , grainfilling rate , Falling number , Wheat , gluten index , plant hormone

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