an evaluation of different durum wheat (triticum turgidum l.) lines under stress and non-stress conditions

Authors

عبدالهادی حسین زاده

منصور خضری عفراوی

سید تراب میری

علی پیغمبری

abstract

twenty five durum wheat lines were evaluated under drought stress and non-stress conditions employing randomized complete block design of 4 replications. significant differences were observed among the lines for most traits in either stress or non-stress conditions. correlation analysis under non-stress conditions indicated that grains per spike and number of spikes per m2 and while under stress conditions, 1000 kernel weight and number of spiklets per spike had high positive significance with grain yield. stepwise regression revealed that the 1000 kernel weight and peduncle length were the most affected characters both under stress and non- stress conditions. path analysis illustrated that peduncle length had the highest direct effect on grain yield under either one of the environmental conditions. among the drought resistance indices, harmonic mean, geometric mean productivity and stress tolerance index, were the most suitable ones to be considered in drought resistance selection. based upon bi-plot display, lines 14, 20, 16, 17, 1 and 15 were found to be the most resistant.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Genetic analysis of agronomic and morphological traits of durum wheat [Triticum turgidum L. spp. durum (Desf.)] using generations mean analysis under non-stress and terminal drought stress conditions

Breeders often use generation means analysis to obtain information about inheritance, gene action, and to determine effective breeding methods to improve important agronomic traits, especially under drought stress conditions. To investigate the genetic parameters of agronomic and morphological traits in durum wheat, a field experiment was carried out using F1, F2, BC1 and BC2 generations obtain...

full text

Durum Wheat (Triticum Durum Desf.) Lines Show Different Abilities to Form Masked Mycotoxins under Greenhouse Conditions

Deoxynivalenol (DON) is the most prevalent trichothecene in Europe and its occurrence is associated with infections of Fusarium graminearum and F. culmorum, causal agents of Fusarium head blight (FHB) on wheat. Resistance to FHB is a complex character and high variability occurs in the relationship between DON content and FHB incidence. DON conjugation to glucose (DON-3-glucoside, D3G) is the p...

full text

Evaluation of genotype × environment interaction in durum wheat (Triticum turgidum var. durum L.) regional yield trials

The objective of this experiment was to analyze genotype × environment (GE) interaction for grain yield of 20 durum wheat genotypes to identify the yield stability and adaptability of genotypes using GGE biplot method as well as some univariate stability statistics. The genotypes were evaluated in three rainfed stations of Sararood (Kermanshah), Maragheh and Shirvan, Iran under both rainfed and...

full text

Agrobacterium-mediated transformation of durum wheat (Triticum turgidum L. var. durum cv Stewart) with improved efficiency

An efficient Agrobacterium-mediated durum wheat transformation system has been developed for the production of 121 independent transgenic lines. This improved system used Agrobacterium strain AGL1 containing the superbinary pGreen/pSoup vector system and durum wheat cv Stewart as the recipient plant. Acetosyringone at 400 microM was added to both the inoculation and cultivation medium, and picl...

full text

Association of Agronomic Traits with SNP Markers in Durum Wheat (Triticum turgidum L. durum (Desf.))

Association mapping is a powerful approach to detect associations between traits of interest and genetic markers based on linkage disequilibrium (LD) in molecular plant breeding. In this study, 150 accessions of worldwide originated durum wheat germplasm (Triticum turgidum spp. durum) were genotyped using 1,366 SNP markers. The extent of LD on each chromosome was evaluated. Association of singl...

full text

SNP-based association analysis for seedling traits in durum wheat (Triticum turgidum L. durum (Desf.))

In the present study, 150 accessions of worldwide originated durum wheat germplasm (Triticum turgidum spp. durum) were observed for major seedling traits and their growth. The accessions were evaluated for major seedling traits under controlled conditions of hydroponics at the 13th, 20th, 27th and 34th day-after germination. Biomass traits were measured at the 34th day-after germination. Correl...

full text

My Resources

Save resource for easier access later


Journal title:
علوم گیاهان زراعی ایران

جلد ۴۰، شماره ۳، صفحات ۰-۰

Keywords
[ ' t w e n t y f i v e d u r u m w h e a t l i n e s w e r e e v a l u a t e d u n d e r d r o u g h t s t r e s s a n d n o n ' , ' s t r e s s c o n d i t i o n s e m p l o y i n g r a n d o m i z e d c o m p l e t e b l o c k d e s i g n o f 4 r e p l i c a t i o n s . s i g n i f i c a n t d i f f e r e n c e s w e r e o b s e r v e d a m o n g t h e l i n e s f o r m o s t t r a i t s i n e i t h e r s t r e s s o r n o n ' , ' s t r e s s c o n d i t i o n s . c o r r e l a t i o n a n a l y s i s u n d e r n o n ' , ' s t r e s s c o n d i t i o n s i n d i c a t e d t h a t g r a i n s p e r s p i k e a n d n u m b e r o f s p i k e s p e r m 2 a n d w h i l e u n d e r s t r e s s c o n d i t i o n s ' , ' 1 0 0 0 k e r n e l w e i g h t a n d n u m b e r o f s p i k l e t s p e r s p i k e h a d h i g h p o s i t i v e s i g n i f i c a n c e w i t h g r a i n y i e l d . s t e p w i s e r e g r e s s i o n r e v e a l e d t h a t t h e 1 0 0 0 k e r n e l w e i g h t a n d p e d u n c l e l e n g t h w e r e t h e m o s t a f f e c t e d c h a r a c t e r s b o t h u n d e r s t r e s s a n d n o n ' , ' s t r e s s c o n d i t i o n s . p a t h a n a l y s i s i l l u s t r a t e d t h a t p e d u n c l e l e n g t h h a d t h e h i g h e s t d i r e c t e f f e c t o n g r a i n y i e l d u n d e r e i t h e r o n e o f t h e e n v i r o n m e n t a l c o n d i t i o n s . a m o n g t h e d r o u g h t r e s i s t a n c e i n d i c e s ' , ' h a r m o n i c m e a n ' , ' g e o m e t r i c m e a n p r o d u c t i v i t y a n d s t r e s s t o l e r a n c e i n d e x ' , ' w e r e t h e m o s t s u i t a b l e o n e s t o b e c o n s i d e r e d i n d r o u g h t r e s i s t a n c e s e l e c t i o n . b a s e d u p o n b i ' , ' p l o t d i s p l a y ' , ' l i n e s 1 4 ' , 2 0 , 1 6 , 1 7 , ' 1 a n d 1 5 w e r e f o u n d t o b e t h e m o s t r e s i s t a n t . ' ]

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023