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Effects of Aluminium on Some Biochemical Characteristics of Wheat (triticum Aestivum L.)

A. N. M. ALAMGIR
Department of Botany, Chittagong University, Chittagong-4331, Bangladesh

SUFIA AKHTER
Department of Botany, Chittagong University, Chittagong-4331, Bangladesh

Abstract/ Executive Summary:

Aluminium at 10 ppm increased chl a in Aghrani, Gourab, Kanchan and Sourab; chl b and carotinoids in Fang-60, Kanchan and Sourab, though at 100 ppm inhibited chl a in all nine varieties, chl b in Akbar and Protiva and carotinoids in Aghrahani, Gourab, Kanchan, Protiva, and Sonalica. Proline content increased in the seedlings of all varieties and the root had relatively higher proline content than that of shoot. Stimulatory effect of Al³⁺ on proline content was higher in Kanchan. Proline content also increased in Akbar, Gourab and Sonalika. Al³⁺ stress induced increase in protein and reducing sugar contents was more in root than in the shoot. Hamatoxylin test of the root tips also revealed differential responses of the varieties to Al³⁺ stress.

Keywords: Aluminium stress, HYV wheat, Metabolites, Hematoxylin test, Efficiency ratio

Location: Dhaka University

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Wheat

Objectives:

To screen HYV wheat varieties for Al³⁺ tolerance efficiencies on the basis of their performance in some biochemical characteristics.

Methodology:

Seeds of nine HYV of wheat (Triticum aestivum L.) viz. Aghrahani, Akbar, Baw-923, Fang-60, Gourab, Kanchan, Protiva, Sonalika and Sourab were collected from Bangladesh Agricultural Research Institute, Joydevpur, Gazipur. Seeds were germinated in 0.1 mM CaSO₄ and then further grown for ten days hydroponically in 0.1 strength (0.1N) nutrient solution (Arnon and Hoagland 1940) without (control) and with Al3+ (treatment) in the open air. Solution was changed after 24h interval. Leaf pigments (Wettstein 1957), protein (Lowry et al. 1951), proline (Troll and Lindsley 1954) and sugar (Nelson-Somogyi 1944) were analyzed in ten days old seedlings. Efficiency ratio (ER) was determined by dividing treatment value by that of respective control. Roots of three days old seedlings were used for hematoxylin staining test following Polle et al. (1978). In all cases, each set of experiment was replicated thrice.

Source of Information: Bangladesh J. Bot. 39(1): 9-14, 2010 (June)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Proline content increased in the seedlings of all varieties and the root had relatively higher proline content than that of shoot. Stimulatory effect of Al3+ on proline content was higher in Kanchan. Proline content also increased in Akbar, Gourab and Sonalika. Al3+ stress induced increase in protein and reducing sugar contents was more in root than in the shoot. Hamatoxylin test of the root tips also revealed differential responses of the varieties to Al3+ stress.

Knowledge Management: Journal