scholarly journals Parents’ Performance and F1 Crosses For Several Bread Wheat Cultivars Under Varying Levels of Nitrogen Fertilization

2021 ◽  
Vol 904 (1) ◽  
pp. 012022
Author(s):  
M A Abdel-Moneam ◽  
M S Sultan ◽  
E S Dehaina
Keyword(s):  
Bread Wheat ◽  
Normal Condition ◽  
Biomass Yield ◽  
Genetic System ◽  
Stress Conditions ◽  
Wheat Cultivars ◽  
Wheat Varieties ◽  
Biological Yield ◽  
The Mean ◽  
Half Diallel

Abstract Six bread wheat varieties representing different traits were crossed in a half-diallel in 2017/2018 season. The 6 parents and its 15 F1 crosses were evaluated under normal and N-stress conditions in 2018/2019 season, to study the mean performance and the combining ability for earliness and morpho-physiological traits and biomass yield of wheat under normal and N-stress conditions. Mean squares of genotypes, parents, crosses, and parents versus crosses were significant or highly significant for most of the studied traits and biological yield under both conditions, reflecting a sort of heterosis for these characters. Mean squares of GCA and SCA were significant or highly significant for most of the studied traits under both conditions, indicating the presence of both additive and non-additive types of genes in the genetic system controlling these traits. The best general combiners were P1 (Giza 168) and P2 (Sakha 94) at both conditions, P3 (Shandweel 1) at N-stress, and P4 (Gemmeiza 11) at normal condition for earliness and P6 (Misr 1) at both conditions and P5 (Sids 12) at N-stress and P3 (Shandweel 1) at normal condition for biomass yield plant-1. The best cross combinations were crosses No.3 (P1xP4), No.5 (P1xP6), No.6 (P2xP3), No.7 (P1xP2), No.8 (P2xP5) and No.11 (P3xP5) under N-stress for earliness; and crosses No.3 (P1xP4), No.7 (P2xP4), No.8 (P2xP5), No.12 (P3xP6), No.14 (P4xP6) and No.15 (P5xP6) at both conditions, and cross No.2 (P1xP3) under N-stress for biomass yield plant-1.

scholarly journals Productivity Test of Wheat Genotypes Under Water Stress Conditions

2021 ◽  
Vol 923 (1) ◽  
pp. 012051
Author(s):  
Hassan Jasim Obead Al-Omary ◽  
Haider Abdul Hussain Mohsen ◽  
Saleh Hadi AlSalem
Keyword(s):  
Water Stress ◽  
Grain Yield ◽  
Bread Wheat ◽  
Field Capacity ◽  
Stress Conditions ◽  
Influence Of Water ◽  
Biological Yield ◽  
The Mean ◽  
Four Levels ◽  
Plot Design

Abstract A field experiment was carried out in Dhi Qar Governorate, Iraq, during the agricultural season (2020-2021), with the aim of studying the effect of water stress on the productivity of some genotypes of bread wheat. The experiment included studying the effect of four levels of water depletion from field capacity, which are 25% (W1), 50% (W2) and 75% (W3), in addition to the comparison treatment without water stress (W0), and six genotypes of bread wheat (N29, N12, Aba99, N14, N28, and Bohouth 22). The experiment was applied using the RCBD randomized complete plot design according to the split plot design with three replications. Water stress dish in lining stage. The results showed that water stress (W3) caused a significant decrease in the mean characteristics of the number of grains per spike, weight of 1000 grains, grain yield and biological yield. The compositions differed significantly among themselves if the composition N14 outperformed in the trait and yield of grain (5.390 tons ha−1), biological yield (14.98 tons.ha−1) and weight of 1000 grains (48.10 g), while the superiority of the variety Bohouth22 in the number of grains in the spike (36.73 grains spike_1). This study suggests to more cultivation of the genotypes N14, N28 and N12, which gave the best grain yield under water stress conditions in order to adopt them and expand their cultivation in Iraq, and to conduct more studies on the cultivation of genotypes of bread wheat under the influence of water stress, as well as the adoption of the variety Bohouth 22 instead of From the of Apa99 in areas that suffer from water scarcity in Iraq.

scholarly journals The determination of the resistance inheritance against common bunt in wheat and half-diallel hybrids

2019 ◽  
Vol 55 (No. 4) ◽  
pp. 254-260
Author(s):  
Gülçin Akgören Palabiyik ◽  
İsmail Poyraz ◽  
Ahmet Umay
Keyword(s):  
Disease Resistance ◽  
Bread Wheat ◽  
Resistance Genes ◽  
Common Bunt ◽  
Wheat Varieties ◽  
Complete Dominance ◽  
Selection For ◽  
Half Diallel ◽  
Dominant Genes

This study was conducted to determine the inheritance of common bunt resistance in twelve bread wheat varieties and their half-diallel hybrids in Turkey. The disease ratings were performed on the F2 generations of the hybrids in field conditions. The obtained data were analysed by the χ2 test to determine the effective gene numbers and inheritance type in the disease resistance. In addition, the data were evaluated according to the Jinks-Hayman diallel analyses. In conclusion, it was found that of the twelve wheat parents, four contained three resistance genes and four of them contain two resistance genes. The dominant genes were prominent in the population and complete dominance was present. Therefore, the selection for disease resistance should be delayed until the following generations.

scholarly journals The Effect of Different Zinc Application Methods on Yield and Grain Zinc Concentration of Bread Wheat Varieties

2017 ◽  
Vol 5 (8) ◽  
pp. 898 ◽  
Author(s):  
Hatun Barut ◽  
Tuğba Şimşek ◽  
Seyyid Irmak ◽  
Uğur Sevilmiş ◽  
Sait Aykanat
Keyword(s):  
Bread Wheat ◽  
Field Experiments ◽  
Wheat Cultivars ◽  
Thousand Grain Weight ◽  
Wheat Varieties ◽  
P Concentration ◽  
Zn Concentration ◽  
Grain Zinc ◽  
Application Methods ◽  
Zinc Application

This study was carried out to elucidate the impacts of zinc (Zn) treatments on growth, development, quality and yield of commonly sown bread wheat cultivars under field conditions of Çukurova Region. Three different bread wheat cultivars (Adana-99, Ceyhan-99 and Pandas) were experimented in randomized complete blocks-split plots experimental design with 3 replications. Field experiments were performed by two different Zn application methods; via soil and via soil+foliage. In the both trials, 0, 5, 10, 20, 30, and 40 kg ha-1 pure Zn doses were applied to the soil. 0.4% ZnSO4.7H2O solution was used for foliar Zn applications. Current findings revealed that Zn treatments had significant effects on grain yield, grain Zn concentration, grain phosphorus (P) concentration and thousand grain weight of bread wheat cultivars, but significant effects were not observed on grain protein concentrations. Soil+foliar Zn treatments were more effective in improving grain Zn concentrations. It was concluded that 10- 20 kg ha-1 Zn treatment was quite effective on grain Zn concentrations.

scholarly journals Leaf proteome pattern of two bread wheat varieties under water deficit stress conditions

2020 ◽  
Vol 23 ◽  
pp. 100146
Author(s):  
Soheila Shayan ◽  
Majid Norouzi ◽  
Mohammad Moghaddam Vahed ◽  
Seyed Abolghasem Mohammadi ◽  
Mahmoud Toorchi
Keyword(s):  
Water Deficit ◽  
Bread Wheat ◽  
Stress Conditions ◽  
Water Deficit Stress ◽  
Wheat Varieties ◽  
Leaf Proteome

scholarly journals Using insensitive PPD-D1a allele for the early forms selection of bread wheat in the initial selection stages

2021 ◽  
Author(s):  
Galina Mirskaya ◽  
◽  
N. Rushina ◽  
N. Sinyavina ◽  
A. Kochetov ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Genetic Material ◽  
Comprehensive Assessment ◽  
Soft Wheat ◽  
Wheat Cultivars ◽  
Wheat Varieties ◽  
Spring Soft Wheat ◽  
Wheat Lines ◽  
Initial Selection ◽  
Selection Of

Determination the photoperiod-insensitive allele (Ppd-D1a) in wheat cultivars is necessary for use in breeding development of newly wheat cultivars. The aim of our study was to select breeding material by screening Ppd-D1 gene alleles and estimation value and the degree of heterosis in F1. Using these two methods, it is possible to select genetic material for increased breeding of new wheat lines that combine earliness and increased productivity. In this study 26 varieties of spring soft wheat were screened for the Ppd-D1 gene alleles. The Ppd-D1a allele was detected in 12 wheat varieties (ITMI 10, 29, 47, 57, 58, 59, 60, 89, 94, AFI-91, AFI-177, Opata 85), the recessive Ppd-D1b allele was detected in 14 wheat varieties (ITMI 7, 31, 32, 44, 80, 88, 83, 115, Zlata, Lisa, Agata, Lubava, W7984). Based on the results of a comprehensive assessment, parental pairs were chosen and 10 recombinants were obtained. Based on estimation value and the degree of heterosis of the main ear traits in F1, such as "ear length", "number of grains from the ear" and "weight of grains from the ear" were identified 4 crosses as initial to create wheat cultivars that combine earliness and increased productivity.

Nitrogen Metabolism and Yellowberry of Two Bread Wheat Cultivars 1

Crop Science ◽  
1983 ◽  
Vol 23 (1) ◽  
pp. 20-22 ◽  
Author(s):  
James F. Henson ◽  
J. Giles Waines
Keyword(s):  
Nitrogen Metabolism ◽  
Bread Wheat ◽  
Wheat Cultivars
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