Nitrogen and irrigation effects on beta-glucan content of wheat grain

Guler M.

ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE, cilt.53, sa.3, ss.156-160, 2003 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 3
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1080/09064710310005527
  • Dergi Adı: ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.156-160
  • Anahtar Kelimeler: dietary fiber, irrigation levels, quality, Triticum aestivum, OATS, BARLEY, (1->4)-BETA-D-GLUCAN, ENVIRONMENT, CULTIVAR, LEVEL
  • Ankara Üniversitesi Adresli: Evet

Özet

beta-glucan is a major source of dietary fiber and a water-soluble fiber component of wheat grain. The objective of this study was to examine the effects of different nitrogen and irrigation levels on beta-glucan content of wheat grain in the years 1998-2000. Experimental design was a split-split, randomized complete block with three replications. Three irrigation levels (0, 75 and 150 mm) and nitrogen rates (0, 50 and 100 kg/ha) were applied in three winter wheat cultivars. Increased levels of applied nitrogen tended to increase grain beta-glucan content in 1999. Non-irrigated (I-0) cultivars gave the highest beta-glucan contents in all treatments ( 2000). The mean beta-glucan values of Bezostaja 1, Gun 91 and Ikizce 96 were 0.615, 0.391 and 0.361% respectively in 1999. In 2000, the mean beta-glucan contents of Bezostaja 1, Gun 91 and Ikizce 96 were 0.704, 0.492 and 0.376% respectively. Correlations between beta-glucan content and grain yield, protein content, thousand grain weight and gluten content were significant in both years. The results of this study indicated that cultivars and increasing nitrogen levels are important in determining wheat grain beta-glucan content, while irrigation decreased grain beta-glucan content.