Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094

April 2014 Vol. 3(4): pp. 106-112

Copyright © 2014 Global Advanced Research Journals

 

Full Length Research Paper

Study of early growth cycle as drought factor avoidance within a group of native oasis  common  wheat genotypes

Reguieg Liès (1*), Boulgheb Abdelmadjid(2), Aissat Abdelkader(3), Montanari Bernadette (4**)

 

*,Ecole Nationale Supérieure Agronomique, 16200,Hassen Badi ,El Harrach, Algiers, Algeria.

**University of Kent, Canterbury, UK.

*Corresponding Author’s Email: reguiegliesh@gmail.com;

Tel :  +213  21 52 19 87; fax  +213  21 82.27.29

Accepted 06 April, 2014

 

Abstract

Earliness is an efficient means that enables plants to avoid drought, heat and extreme solar radiation. Shortening growth cycle can, in Mediterranean settings, prevent subsequent stresses. Every temperature rise and water stress, within the period of filling of seeds, will be interpreted as a regression of that period, and will compromise yields through the reduction of carbon assimilation. Effects of water stress, in the areas affected by drought, are among the major factors reducing yields of wheat, especially just before flowering till 15 days after the emergence of anthers. This paper aims at determining the variability among a group of local genotypes pertaining to oases (Algeria) soft wheat in terms of earliness of ear emergence, duration of filling stage, seeds weight, and plants height when they attain ripeness.  Gaps of ear emergence between the earliest genotype, the latest one and the two check genotypes equaled: 30, 25 and 14 days, respectively.

Keywords:  Wheat, oases genotypes, Earliness, Drought, Avoidance, Water Stress.

 

 

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