scholarly journals Environmental Conditions and Genotype Influence Upon Some Correlations Value to Few Lines of Winter Wheat

2020 ◽  
Vol 2 (1) ◽  
pp. p252
Author(s):  
Ovidiu Păniță ◽  
Paula Iancu ◽  
Marin Soare
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Environmental Conditions ◽  
Climatic Conditions ◽  
Quality Traits ◽  
Two Factors ◽  
Cropping Seasons ◽  
High Level ◽  
Favorable Conditions

Twenty-five mutant/recombinant lines and the two parental forms of winter wheat were taken into study to assess the correlations between grain yield and some quality traits. This investigation was carried out at ARDS Caracal of University of Craiova, during 2015-2018 cropping seasons in randomized blocks design with 3 replications. It included two factors: A– influence of climatic conditions (2016-2017 favorable conditions (A1); 2017-2018 less favorable (A2) and 2018-2019 abnormal conditions (A3) and b – genotype. Observations were recorded after harvest for grain yield and some quality traits every year after harvest. All the analyzed traits such as proteins, starch, TKW, seeds number/ear, seeds weight/100, seeds weight/ear indicate the experimented material combine well high level of yield and superior quality percent in the grains.

scholarly journals Date of ear emergence: a factor for notable changing the grain yield of modern winter wheat varieties in different environments of Bulgaria

2021 ◽  
pp. 12-18
Author(s):  
N. Tsenov ◽  
T. Gubatov ◽  
I. Yanchev
Keyword(s):  
Environmental Factors ◽  
Winter Wheat ◽  
Grain Yield ◽  
Environmental Conditions ◽  
Climatic Conditions ◽  
Environment Interaction ◽  
Wheat Varieties ◽  
Emergence Date ◽  
The Relationship ◽  
Winter Wheat Varieties

Abstract. Wheat is a crop with a very long growing season, during which it is subjected to prolonged exposure to many environmental factors. For this reason, the interaction of genotype with conditions is very common for any character of wheat. This study aims to determine whether the grain yield is affected by the change of the ear emergence date (EED) in various environments. In a four-year period, 30 current for national real grain production winter wheat varieties were studied. The EED and grain yield (GY) were studied as quantitative traits within five locations of the country having various soil and climatic conditions. Using several statistical programs, genotype x environment interaction of two traits was analyzed. The emphasis on data analysis was whether changes of traits due to the conditions were related and that the optimization of the ear emergence date could serve as a breeding tool for increasing grain yield. The date of ear emergence and grain yield are traits that are reliably influenced by growing conditions. The change in the date of emergence is mainly of the linear type, while the grain yield shows linear and nonlinear type changes in the same environmental conditions. It was found that the key roles in the change of characteristics are the conditions of the year, with the relatively weakest impact of the genotype on them. There is a positive relationship between the two traits, although their change depends on environmental factors. Although they change to different degrees and in relation to each other, there is a positive correlation between them. The more favorable the environmental conditions, the weaker the relationship between these two traits and vice versa. Under changing climatic conditions, the change in the relationship between the two traits is a signal of the need to create different varieties by date of ear emergence in order to obtain higher yields in the future.

Modern problems of regionalization of territories and human adaptation in regions with extreme natural and climatic conditions

2021 ◽  
Author(s):  
A.L. Maksimov
Keyword(s):  
Environmental Factors ◽  
Environmental Conditions ◽  
Allostatic Load ◽  
Climatic Conditions ◽  
Extreme Conditions ◽  
Human Adaptation ◽  
Nonspecific Resistance ◽  
Key Words Adaptation ◽  
High Level ◽  
Selection Of

The paper considers modern approaches to the zoning of territories and the selection of people for life in extreme environmental conditions, taking into account modern geopolitical challenges. It is shown that it is possible, based on the allostasis concept, to conduct not only the selection of persons with a high level of nonspecific resistance, but also to quantify the degree of extremity of environmental factors using the standard represpiration test. Key words: adaptation, extreme conditions, selection, hypoxia, cold, rerespiration, allostatic load.

Study of the relationship between field lodging and stem quality traits of winter wheat in the north China plain

2019 ◽  
Vol 70 (9) ◽  
pp. 772 ◽  
Author(s):  
Su-Wei Feng ◽  
Zhen-Gang Ru ◽  
Wei-Hua Ding ◽  
Tie-Zhu Hu ◽  
Gan Li
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
North China Plain ◽  
North China ◽  
Bending Strength ◽  
Quality Traits ◽  
Lodging Resistance ◽  
The North ◽  
The North China Plain ◽  
Stem Quality

Winter wheat (Triticum aestivum L.) production in the North China Plain (NCP) is threatened by wheat lodging. Therefore, enhancing plant lodging resistance by improving stem quality traits is crucial to maintaining high stable yields of winter wheat. A consecutive 7-year field experiment was conducted to study the effects of stem traits on lodging resistance and the yield of four winter wheat cultivars (Bainong 418, Aikang 58, Wenmai 6 and Zhoumai 18). The results indicated that rainfall is often accompanied by strong winds that can cause lodging in the field. Stalk bending strength and wall thickness of the second internode showed significant negative correlations with lodging index, and a higher lodging index indicated increased lodging risk, which, in turn, could seriously affect the grain yield of wheat. Significant regression relationships were observed between lodging index and population lodging resistance strength, as measured using a crop lodging resistance electronic measuring device. Statistical analysis revealed that yield components and the grain yield of Bainong 418 were higher than those of the other cultivars; there was no significant difference between Bainong 418 and Aikang 58 in lodging index, stalk bending strength or single-stalk and population lodging resistance strengths at anthesis and the middle filling stages, but the mean plant height of Bainong 418 was significantly higher than that of Aikang 58. These results provide a new and reliable method for assessing lodging resistance capacity and indicate that greater lodging resistance, as determined by simultaneously considering plant height and basal stem strength, is an important way to achieve high, stable yield in winter wheat.

scholarly journals Assessment of current climate conditions changes in the territory of Ciscaucasia for the purposes of forecasting winter wheat yield

2021 ◽  
Vol 16 (1) ◽  
pp. 117-127
Author(s):  
S. N. Volkov ◽  
S. V. Savinova ◽  
E. V. Cherkashina ◽  
D. A Shapovalov ◽  
V. V. Bratkov ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Climatic Factors ◽  
Wheat Yield ◽  
Climatic Conditions ◽  
Climate Conditions ◽  
Average Value ◽  
Current Climate ◽  
Close Relationship ◽  
Winter Wheat Yield ◽  
High Level

Аim. Assessment of current climate changes in the territory of Ciscaucasia in order to predict the yield of winter wheat.Methods .Integral indicators of climatic conditions for agricultural production were employed. For the investigations, we selected five‐year periods for which the meteorological parameters were averaged, and to identify trends the data of specific five‐year periods were compared with the average value for the entireseries of observations (1960‐2020).Results. The deviation of precipitation in April was highest in 2011‐2015, when it increased by 22 mm, and in 1986‐1990 and 1991‐1995, when it decreased by 15 and 10 mm respectively. In Eastern Ciscaucasia,where conditions are more arid than in the Western and Central regions, in both the rise in air temperature and the amount of precipitation, especially in April and May, increased in the 21stcentury for the entire period of active vegetation.Conclusion.It was established that the value of the hydrothermal coefficient practically did not change during the 1960‐2020 period. In the late 1990s and early 2000s, there was an increase in productivity against the background of a relatively high level of annual precipitation and this stability is confirmed at the present time. There is a very close relationship between natural and climatic factors and the level of winter wheat yield.

scholarly journals Technology of nutriating winter wheat varieties in variety-soil-fertilizer system

2021 ◽  
Vol 244 ◽  
pp. 02040
Author(s):  
Bakhtiyor Atoev ◽  
Jandos Kaypnazorov ◽  
Mukhayyo Egamberdieva ◽  
Samad Makhammadiev ◽  
Murod Karimov ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Grain Quality ◽  
Wheat Variety ◽  
Dry Mass ◽  
Climatic Conditions ◽  
Wheat Varieties ◽  
Fertilizer System ◽  
Soil Fertilizer ◽  
Winter Wheat Varieties

In this article, the reaction of winter wheat varieties to fertilizers in irrigated soils in the varietal-soil-fertilizer system was studied and a feeding system was developed and recommended for each soil-climatic conditions and varieties. Appropriate fertilizer standards have been developed for each wheat variety, which have increased the germination, weeding, accumulation, tuberization, spike formation, dry mass accumulation, grain quality, and yield structure and yield of winter wheat. N250P200K200 kg/ha was obtained from Polovchanka variety of winter wheat at the rate of N250P200K200 kg/ha used in irrigated brown meadow soils, while in typical irrigated gray soils the yield of winter wheat was higher than N250P200K200 kg/ha of pure wheat with N250P200K200 kg/ha. Grain yield was 80.18 tons/ha from Tanya variety, 76.38 tons/ha from Krasnodar-99 variety and 82.32 tons/ha from Polovchanka variety under N200P150K150 kg/ha. Under the influence of the same optimal fertilizer standards, the growth and development of winter wheat, nutrient accumulation, and grain yield and grain quality are improved, and the efficiency of fertilizers is increased.

scholarly journals Genotype × environment interaction and stability of grain yield and selected quality traits in winter wheat in Central Asia

2015 ◽  
Vol 39 ◽  
pp. 920-929 ◽  
Author(s):  
Shakhnoza KHAZRATKULOVA ◽  
Ram C. SHARMA ◽  
Amir AMANOV ◽  
Zokhid ZIYADULLAEV ◽  
Oybek AMANOV ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Central Asia ◽  
Environment Interaction ◽  
Quality Traits ◽  
Genotype Environment Interaction

scholarly journals Characterization of Agronomical and Quality Traits of Winter Wheat (Triticum aestivum L.) for Fusarium Head Blight Pressure in Different Environments

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 213
Author(s):  
Valentina Spanic ◽  
Josipa Cosic ◽  
Zvonimir Zdunic ◽  
Georg Drezner
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Yield ◽  
Fusarium Head Blight ◽  
Total Variation ◽  
Environmental Conditions ◽  
Triticum Aestivum L ◽  
Test Weight ◽  
Head Blight ◽  
Wheat Varieties

For food security, it is essential to identify stable, high-yielding wheat varieties with lower disease severity. This is particularly important due to climate change, which results in pressure due to the increasing occurrence of Fusarium head blight (FHB). The objective of this study was to evaluate the stability of winter wheat (Triticum aestivum L.) grain yield under different environmental conditions. Twenty-five winter wheat varieties were evaluated under two treatments (naturally-disease infected (T1) and FHB artificial stress (T2)) during two growing seasons (2018–2019 to 2019–2020) in Osijek and in 2019–2020 in Tovarnik. The interaction between varieties and different environments for grain yield was described using the additive main-effects and multiplicative interaction (AMMI) effects model. The Kraljica and Fifi varieties were located near the origin of the biplot, thus indicating non-sensitivity to different environmental conditions. Principal component analysis (PCA) was used to understand the trait and environmental relationships. PC1 alone contributed 42.5% of the total variation, which was mainly due to grain yield, 1000 kernel weight and test weight in that respective order. PC2 contributed 21.1% of the total variation mainly through the total sedimentation value, test weight, wet gluten and protein content ratio (VG/P) and wet gluten content, in descending order.

Peregrine hard red winter wheat

2010 ◽  
Vol 90 (6) ◽  
pp. 853-856 ◽  
Author(s):  
B.D. Fowler
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Triticum Aestivum L ◽  
High Energy ◽  
General Purpose ◽  
Yield Potential ◽  
Western Canada ◽  
Hard Red Winter Wheat ◽  
High Level ◽  
Red Winter Wheat

Peregrine is a medium tall, high-yielding, stem and leaf rust resistant winter wheat (Triticum aestivum L.) that is registered for production in western Canada. It is a hard red winter wheat cultivar that is eligible for grades of the Canada Western General Purpose (CWGP) wheat class. The CWGP class was created in 2007 to encourage the development of cultivars to fill the high energy demands of the biofuel and livestock feed markets in western Canada. In Manitoba and Saskatchewan, the grain yield of Peregrine was 117% of the Canada Western Red Winter Wheat Class grain quality check cultivar, CDC Osprey, and 106% of the high-yielding check, CDC Falcon. High grain yield potential and a high level of rust resistance mean that Peregrine provides a good fit for the CWGP class.

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