Paper Details

Relation of morphological and photosynthetic traits durum wheat genotypes under normal and drought stress condition

Hasan Bigonah Hamlabad

DOI: https://dx.doi.org/10.12692/ijb/5.6.87-94

Int. J. Biosci. 5(6), 87-94. September, 2014. (PDF)

Abstract:

The objective of this study was to identify indicators related to drought tolerance through analysis of morphological and photosynthetic traits in Omrabi5, Altar, Yavarus, Fadda, Korifla, Zardak, Stork, Ammar Hurani, Chakmak cultivars of durum wheat genotypes. These traits were chlorophyll content, maximum quantum yield of photosystem II, Biomass  and grain yield, length plant, spike length, number of kernel per spike, kernel weight per spike, weight of each spike, awn length, which  studied  were used to investigate the combined and correlation analysis between these traits in both well-watered and drought stress conditions. The results of combined analysis reflected that treatment effects on chlorophyll content and chlorophyll fluorescence levels were significant at 5%, while that effect of treatment per environments on the biomass yield, length plant, spike length, number of kernel per each spike and length awn traits were significant at 1%, this result showed that the grain yield, number spike per bush, weight kernel per spike traits were significant at 5%. Result of correlation analysis showed that between grain yield trait with number of kernel per spike, and between length plant with spike length, and between number of kernel per spike with kernel weight per spike, and between spike weight trait with number of kernel per spike, and between weight of each spike with kernel weight per spike, had positive and significant correlate at 1% probability. In this case between chlorophyll content and biomass trait with length plant, and between grain yield trait with kernel weight per spike and weight of each spike traits were correlated significant positively at 5%. results showed that chlorophyll content reduced significantly in stress condition, and the most of decrease lookout for sensitive cultivars, It was concluded that photosynthetic response to stimulate water deficit and morphological treats relation could be considered as reliable indicators in screening durum wheat germplasm for drought tolerance.