GAR dwarf gene Rht14 reduced plant height and affected agronomic traits in durum wheat (Triticum durum)

2020 ◽  
Vol 248 ◽  
pp. 107721 ◽  
Author(s):  
Shan Duan ◽  
Zhangchen Zhao ◽  
Yue Qiao ◽  
Chunge Cui ◽  
Alexey Morgunov ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Plant Height ◽  
Triticum Durum ◽  
Agronomic Traits ◽  
Dwarf Gene

scholarly journals Evaluation of agronomic traits and assessment of genetic variability in some popular wheat genotypes cultivated in Saudi Arabia

2019 ◽  
pp. 847-856 ◽  
Author(s):  
Soleman M. Al-Otayk
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Plant Height ◽  
Bread Wheat ◽  
Coefficient Of Variation ◽  
Agronomic Traits ◽  
Kernel Weight ◽  
Wheat Genotypes ◽  
Days To Heading ◽  
Days To Maturity

The present study was carried out to evaluate agronomic traits and assessment of genetic variability of some wheat genotypes at Qassim region, Saudi Arabia', during 2010/11 and2011/12 seasons. Fourteen wheat genotypes including five bread wheat and nine durum wheat genotypes were evaluated in randomized complete block design with three replications. The genotypes were evaluated for ten different yield contributing characters viz., days to heading, days to maturity, grain filling period, grain filling rate, plant height, number of spikes m-2, kernels spike-1, 1000-kernel weight, grain yield and straw yield. The combined analysis of variance indicated the presence of significant differences between years for most characters. The genotypes exhibited significant variation for all the characters studied indicating considerable amount of variation among genotypes for each character. Maximum coefficient of variation was observed for number of spikes m-2 (17%), while minimum value was found for days to maturity. Four genotypes produced maximum grain yield and statistically similar, out of them two bread wheat genotypes (AC-3 and SD12) and the other two were durum wheat (AC-5 and BS-1). The genotypes AC-3, AC-5 and BS-1 had higher grain yield and stable in performance across seasons. The estimation of phenotypic coefficient of variation in all the traits studied was greater than those of the genotypic coefficient of variation. High heritability estimates (> 0.5) were observed for days to heading, days to maturity, and plant height, while the other characters recorded low to moderate heritability. The high GA % for plant height and days to heading (day) was accompanied by high heritability estimates, which indicated that heritability is mainly due to genetic variance. Comparatively high expected genetic advances were observed for grain yield components such as number of kernels spike-1 and 1000-kernel weight. Grain yield had the low heritability estimate with a relatively intermediate value for expected genetic advance. The results of principle component analysis (PCA) indicated that the superior durum wheat genotypes for grain yield in the two seasons (AC-5 and BS-1) are clustered in group II (Fig. 2). Also, the superior two bread wheat genotypes (AC-3 and SD12) were in group I. Therefore, it could be future breeding program to develop new high yielding genotypes in bread and durum wheat.

Study of Genetic Architecture of Some Important Agronomic Traits in Durum Wheat (Triticum durum Desf.)

2003 ◽  
Vol 2 (9) ◽  
pp. 708-712 ◽  
Author(s):  
Muhammad Kashif . ◽  
Javed Ahmad . ◽  
Muhammad Aslam Chowd . ◽  
Khalida Perveen .
Keyword(s):  
Durum Wheat ◽  
Triticum Durum ◽  
Genetic Architecture ◽  
Agronomic Traits ◽  
Triticum Durum Desf

Mapping of QTL for agronomic traits and kernel characters in durum wheat (Triticum durum Desf.)

Euphytica ◽  
2012 ◽  
Vol 190 (1) ◽  
pp. 117-129 ◽  
Author(s):  
R. M. Patil ◽  
S. A. Tamhankar ◽  
M. D. Oak ◽  
A. L. Raut ◽  
B. K. Honrao ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Triticum Durum ◽  
Agronomic Traits ◽  
Triticum Durum Desf

Vigorous responsiveness of dwarf gene Rht14 to exogenous GA 3 evaluated on important morphological and agronomic traits in durum wheat

2020 ◽  
Vol 112 (6) ◽  
pp. 5033-5044
Author(s):  
Shan Duan ◽  
Zhangchen Zhao ◽  
Yue Qiao ◽  
Chunge Cui ◽  
Anthony G. Condon ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Agronomic Traits ◽  
Dwarf Gene

scholarly journals Inheritance of plant height, straw yield and flag leaf area in MBB x Gaviota durum wheat (Triticum durum Desf.) cross

2021 ◽  
Vol 117 (4) ◽  
pp. 1
Author(s):  
Manel SALMI ◽  
Zine El Abidine FELLAHI ◽  
Abdelkader BENBELKACEM ◽  
Amar BENMAHAMMED ◽  
Hamenna BOUZERZOUR
Keyword(s):  
Durum Wheat ◽  
Leaf Area ◽  
Plant Height ◽  
Triticum Durum ◽  
Gene Action ◽  
Flag Leaf ◽  
Genetic Correlations ◽  
Arid Zones ◽  
Breeding Method ◽  
Consistent Manner

<p class="042abstractstekst">Plant height, straw mass and flag leaf area are recognized by physiologists as morphological markers of drought stress tolerance. Developing varieties intended for arid and semi-arid zones need to select for these traits. Understanding the genetic control of a given trait helps breeder to handle the segregating populations under study in a more efficient and consistent manner by choosing the best breeding method available to realize significant genetic advance. For this purpose, six generations: parents, F1, F2, BC1, BC2, derived from MBB x ‘Gaviota’ durum wheat (<em>Triticum durum </em>Desf.) cross were grown to investigate the nature of gene action involved in the inheritance pattern of the three traits. The results indicated that the six-parameter model fitted the best the data related to the variability present in the generation means of the studied traits. Generation mean analysis indicated that non-allelic interactions were important factors controlling the expression of these characters with complementary type of gene action governing FLA and STW inheritance. High heritability estimates, moderate to high expected responses to selection, significant genetic correlations with grain yield and greater role of non-additive effects in controlling the inheritance of the three studied traits suggested that breeding methods exploiting both fixable and non-fixable components be applied to break unfavorable linkage and to accumulate useful genes in the base population, followed by mono-trait or index based selection in late advanced generations.</p>

scholarly journals Assessment of heritability and genetic advance for agronomic traits in durum wheat (Triticum durum Desf.)

2017 ◽  
Vol 109 (2) ◽  
pp. 357
Author(s):  
HASSAN NIKKHAHKOUCHAKSARAEI ◽  
Hamlet Martirosyan
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Triticum Durum ◽  
Agronomic Traits ◽  
Genetic Progress ◽  
Climatic Effects ◽  
Wheat Varieties ◽  
Important Indicator ◽  
Spike Number ◽  
Cropping Seasons

<p>In order to evaluate the amount of heritability for desirable agronomic characteristics and the genetic progress associated with grain yield of durum wheat (<em>Triticum durum</em> Desf.), a split plot experiment was carried out with four replications during three cropping seasons (2009-2012). Three sowing dates (as environmental factor) and six durum wheat varieties (as genotypic factor) were considered as main and sub factors respectively. Analysis of variance showed interaction effects between genotypes and environments in days to ripening, plant height, spike length, number of grains per spike, number of spikes per unit area, grain mass and grain yield. The grain yield showed the highest positive correlation with number of grains per spike also grain mass (91 % and 85 %, respectively). A relatively high heritability of these traits (82.1 % and 82.2 %, respectively) suggests that their genetic improvement is possible. The maximum genetic gain (19.6 %) was observed for grain mass, indicating this trait should be a very important indicator for durum wheat breeders, although the climatic effects should not be ignored.</p>

The Evaluation of Agronomic Traits of Durum Wheat (Triticum durum Desf.) Mutants

2004 ◽  
Vol 7 (4) ◽  
pp. 571-576 ◽  
Author(s):  
Mehmet Ali Sakin . ◽  
Ahmet Yildirim . ◽  
Sabri Gokmen .
Keyword(s):  
Durum Wheat ◽  
Triticum Durum ◽  
Agronomic Traits ◽  
Triticum Durum Desf

scholarly journals Mapping of QTLs Associated with Yield and Yield Related Traits in Durum Wheat (Triticum durum Desf.) Under Irrigated and Drought Conditions

2020 ◽  
Vol 21 (7) ◽  
pp. 2372 ◽  
Author(s):  
Mian Abdur Rehman Arif ◽  
Fauzia Attaria ◽  
Sajid Shokat ◽  
Saba Akram ◽  
Muhammad Qandeel Waheed ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Water Stress ◽  
Durum Wheat ◽  
Quantitative Trait ◽  
Triticum Durum ◽  
Agronomic Traits ◽  
Genetic Components ◽  
Drought Conditions ◽  
Yield Gain ◽  
Triticum Durum Desf

Global durum wheat consumption (Triticum durum Desf.) is ahead of its production. One reason for this is abiotic stress, e.g., drought. Breeding for resistance to drought is complicated by the lack of fast, reproducible screening techniques and the inability to routinely create defined and repeatable water stress conditions. Here, we report the first analysis of dissection of yield and yield-related traits in durum wheat in Pakistan, seeking to elucidate the genetic components of yield and agronomic traits. Analysis of several traits revealed a total of 221 (160 with logarithm of odds (LOD) > 2 ≤ 3 and 61 with LOD > 3) quantitative trait loci (QTLs) distributed on all fourteen durum wheat chromosomes, of which 109 (78 with LOD > 2 ≤ 3 and 31 with LOD > 3) were observed in 2016-17 (S1) and 112 (82 with LOD > 2 ≤ 3 and 30 with LOD > 3) were observed in 2017-18 (S2). Allelic profiles of yield QTLs on chromosome 2A and 7B indicate that allele A of Xgwm895 and allele B of Xbarc276 can enhance the Yd up to 6.16% in control and 5.27% under drought. Moreover, if combined, a yield gain of up to 11% would be possible.

Sign in / Sign up

Export Citation Format

Share Document