Protein and Starch Content of 20 Wheat (<i>Triticum aestivum</i> L.) Genotypes Exposed to High Temperature Under Late Sowing Conditions

Authors

  • M. A. Hakim
  • A. Hossain
  • Jaime A. Teixeira da Silva Principal Investigator and Consultant, Faculty of Agriculture and Graduate School of Agriculture, Kagawa University, Japan
  • V. P. Zvolinsky
  • M. M. Khan

DOI:

https://doi.org/10.3329/jsr.v4i2.8679

Keywords:

Yield, Protein, Starch, Wheat.

Abstract

A total of 20 spring wheat genotypes were evaluated under three growing conditions (optimum, late and very late) at the research farm of the Wheat Research Center, Bangladesh to assess the variation in grain yield, protein and starch content under heat stress. All genotypes were significantly affected by high temperature stress in late and very late sowing conditions, resulting in a decrease in days to heading and maturity, ultimately affecting yield, protein and starch content. Considering yield performance, genotype E-8 was best under optimum (6245 kg ha-1), late (5220 kg ha-1) and very late sowing (4657 kg ha-1) conditions while E-40 was the worst. With respect to yield reduction, genotype E-72 was heat-tolerant (13% yield reduction) while Prodip (49% yield reduction) was heat-susceptible. On the other hand, it was found that the percentage protein increased as heat stress increased. Under heat stress, genotype E-65 and E-60 had the highest and lowest protein content (15.5% and 12%), respectively. With respect to starch content, Prodip and E-37 had the highest while E-14 and E-72 had the lowest content (64.8% vs. 62.9%), respectively in all sowing conditions.

Keywords: Yield; Protein; Starch; Wheat.

© 2012 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.

doi: http://dx.doi.org/10.3329/jsr.v4i2.8679 J. Sci. Res. 4 (2), 477-489 (2012)

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Author Biographies

M. A. Hakim

Senior Wheat Breeder, Wheat Research Center, BARI, Dinajpur, Bangladesh.

A. Hossain

Senior Agronomist, Wheat Research Center, BARI, Dinajpur, Bangladesh.

Jaime A. Teixeira da Silva, Principal Investigator and Consultant, Faculty of Agriculture and Graduate School of Agriculture, Kagawa University, Japan

Faculty of Agriculture and Graduate School of Agriculture, Kagawa University, Ikenobe, Miki-cho, 761-0795, Japan

V. P. Zvolinsky

Director, State Scientific Institute ?The Caspian Scientific Research Institute of Arid Agriculture? of the Russian Academy of Agricultural Sciences, Salt Zaymishche, Chernoyarsky district, 416251 Astrakhan, Russia.

M. M. Khan

Leaf Officer, British American Tobacco, Bangladesh Limited.

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Published

2012-04-28

How to Cite

Hakim, M. A., Hossain, A., Silva, J. A. T. da, Zvolinsky, V. P., & Khan, M. M. (2012). Protein and Starch Content of 20 Wheat (<i>Triticum aestivum</i> L.) Genotypes Exposed to High Temperature Under Late Sowing Conditions. Journal of Scientific Research, 4(2), 477. https://doi.org/10.3329/jsr.v4i2.8679

Issue

Section

Section B: Chemical and Biological Sciences