Trends in breeding oat for nutritional grain quality - An overview.
Journal Title: Journal of Applied and Natural Science - Year 2014, Vol 6, Issue 2
Abstract
Oat is an economically important crop and ranks sixth in world cereal production after maize, wheat, rice, barley and sorghum. It has been primarily utilized as livestock feed. However, the utilization of oats for human consumption has increased progressively, owing to its dietary and health benefits which relies mainly on the total dietary fibre and β-glucan content, which significantly reduces postprandial blood glucose, insulin and blood lipids, especially serum total and low density lipoprotein cholesterol. Henceforth, enhancing Oat b-glucan content for human consumption is desirable. As it is a polygenic trait controlled mainly by genes with additive effects, phenotypic selection for greater b-glucan content would be effective for developing cultivars with elevated b-glucan contents. Oat b-glucan concentration has been found to be positively correlated with protein content and negatively correlated with oil content. β-glucan yield (i.e., Product of grain yield and β-glucan content) has been found to correlate positively with both grain yield (r = 0.92) and β-glucan content (r = 0.66). Hence, this nutritional oat grain quality has been improved through selection for improved grain yield as they both increase simultaneously. Among wild accessions, A. atlantica genotypes have high β-glucan content (2·2–11·3%) and have been used in breeding programmes for increasing the β-glucan content of adapted elite local germplasm. Besides conventional breeding approaches, molecular breeding approaches have made possible to identify several molecular markers linked to β-glucan rich regions across oat genome hence enabling mapping and dissection of β-glucan rich genomic regions and accelerating the improvement in nutritional grain quality.
Authors and Affiliations
Asima Gazal, Z. Dar, Gul Zaffar, A. Lone, I. Abidi, Alima Shabir, Khan , Nida Yousuf
Keywords
Related Articles
- EP ID EP89182
- DOI 10.31018/jans.v6i2.552
- Views 450
- Downloads 0
Integrated nutrient management to enhance biochemical resistance in rice against sheath blight
Application of potassium either as recommended, deficient or excess dose, enhanced the level of phenolic contents, increased incubation period and thereby decreased the sheath blight severity. Application of nitrogen and...
Stability analysis for grain yield and some quality traits in bread wheat (Triticum aestivum L.
The present study was conducted to assess the genetic diversity and stability for grain yield (GY), 1000- grain weight (TGW), protein content (PC), grain iron (Fe) and grain zinc (Zn) concentration under three varied env...
Evaluation of some potential silkworm Bombyx mori L. genotypes during different seasons under temperate conditions
In the present study twelve potential bivoltine silkworm Bombyx mori L. genotypes were evaluated for their performance at 25±1 0C temperature and 75±5 % relative humidity for twelve different traits during spring and sum...
Trend of Crop Water Requirement at Akola (Maharashtra), India
Climate change scenario badly affects the agriculture. The present study aimed to characterize the trend in maximum temperature and crop water requirement over a last decade at Akola station (Maharashtra State), because...
Effect of seed treatment, soil application and foliar spray of some insecticides on seed quality of bell pepper (Capsicum annuum L.)
Studies were carried out to evaluate the efficacy of some insecticides as seed treatment, soil application and foliar sprays on seed quality characters of bell pepper (Capsicum annuumL.) cultivar Solan Bharpur during Kha...