scholarly journals Winter wheat variability according to local conditions

2019 ◽  
Vol 114 (1) ◽  
pp. 113
Author(s):  
Mykola NAZARENKO ◽  
Irina SOLOHUB ◽  
Olexandr IZHBOLDIN

<p>The objectives of our experiments are the description of the phenotypic and genotypic variability by the main agriculture-value traits of the new winter wheat lines according to their interactions with different environmental conditions. Five new winter wheat lines were investigated at field experiment during three years by parameters of grain productivity and quality, uptaking of macro- and microelements and heavy metals from soil under different relief conditions.</p><p>Our investigations confirmed statement about more perspective direction for exploiting local sources for winter wheat improvement and closely relation between concentration of nutrient substances in plants, their loss from soil and peculiarities of relief, genotype and limits of adaptation. We developed high-adaptive line 213 (‘Leana’), which provides us higher than standard grain yield under all conditions. All lines showed higher grain productivity under favorable conditions than control. Variability of traits was higher under south slope conditions (unfavorable conditions) rather than on other (proper conditions). Only line 156 was identified by good protein content and composition under every condition for gliadin and glutenin components. Influence of relief on microelements and heavy metals uptake to the winter wheat plants is not so important as for macroelements and, in consequence, for grain productivity and quality.</p>

Author(s):  
M. M. Nazarenko ◽  
Y. V. Lykholat

The objectives of our investigations are to describe the limits of variability of the main agricultural types of modern ukrainian winter wheat varieties in order to their relations with difference growth conditions. The most target traits for determining these relations are agronomic-value, such as yield, protein content and protein composition (amount of gliadins and glutenins). As an additional purpose we evaluated relations between relief conditions and amount of microelements and heavy metals, relation amid growth conditions and content of value microelements (nitrogen, phosphorus, potassium). Our investigations confirmed statements about relations between content of nutrient elements in winter wheat plants, their uptaking from soil, type of relief, wheat variety genotype and limits of adaptable for difference conditions. Winter wheat is an cultivar with wide, but specific demands to growth and development conditions. Due to relief conditions, north exposition of the slope gives more advantages for winter wheat vegetation. We recommended varieties Komerciyna, Smuglyanka, Zolotokolosa for growing under these conditions by grain productivity and varieties Komerciyna, Smuglyanka and Natalka by grain protein content and protein composition. Variability of agriculture-value traits between varieties was higher under slope conditions than on flat. Only variety Korisna was stable by protein composition under every condition. At the same time all varieties were depended on grows conditions (relief) to reach high level of grain yield. We cannot observe just the same by grain quality. We established that wheat grains contains more microelements than straw. At the same time the lead and nickel uptake was more in the straw samples. Thus, influence of relief on microelements and heavy metals content in the winter wheat grain and straw is not so high as for macroelements and, thus, for grain productivity and quality.


2000 ◽  
Vol 48 (2) ◽  
pp. 191-195
Author(s):  
C. Kondora ◽  
M. Szabó ◽  
A. Máté ◽  
G. Szabó

Owing to the significant differences in the adaptability of state-registered varieties, those which can adapt well to the local conditions should be given preference. There are several high-yielding varieties available in Hungary with excellent agronomic properties, good adaptability and satisfactory baking quality. This study was conducted to analyse the adaptability of 34 state-registered winter wheat varieties tested in the small plot trials of the National Institute for Agricultural Quality Control (NIAQC) at 5–9 locations between 1994 and 1997 based on their gluten quantity and farinographic index. For the comparison of the varieties the evaluation method of Eberhart and Russell (1966) was applied as modified by Bedő and Balla (1977). The qualitative stability and adaptability values of the varieties differ from the adaptability and stability values calculated from the grain yields. Some winter wheat varieties have good qualitative adaptability and stability, while others have special adaptability and poor qualitative stability, but the majority of the varieties do not belong to these groups.


2011 ◽  
Author(s):  
Jesús Sánchez-Martín ◽  
Víctor Encinas-Sánchez ◽  
Jesús Beltrán-Heredia

2018 ◽  
pp. 32-34 ◽  
Author(s):  
S. N. Gromova ◽  
P. I. Kostylev

The article presents the results of the conducted analysis of research works about the effect of size of flag leaves and awns on winter wheat productivity. The genetic potential of the variety, which can be realized on the basis of its biologic characteristics largely influences on its productivity. Productivity is a complex trait that is controlled by a complex genetic system closely connected with many factors of environment. The size and duration of assimilation surface are the most important components of biologic and agricultural yield of wheat. Many researchers showed that the amount and duration of photosynthesis by leaf surface are the main factors limiting productivity in the definite conditions of growing, and the size of leaf surface correlates with grain productivity. Photosynthetic parts of winter wheat include not only leaves, but also stems, heads, awns, etc. The conducted analysis of the literature showed that there is no consensus on the effect of flag leaves on wheat yield formation. Therefore it’s necessary to fulfill the study and evaluation of the part of flag leaves and awns in the formation of winter soft wheat productivity in the Rostov region.


2018 ◽  
Vol 50 (2) ◽  
pp. 105-114 ◽  
Author(s):  
I.M. Shegeda ◽  
◽  
V.M. Pochinok ◽  
D.A. Kiriziy ◽  
T.P. Mamenko ◽  
...  

Author(s):  
M. E. Mukhordova

Winterhardiness is regarded as a parameter controlled by the activities performed by a large number of genes. In diallel crossbreeding, a researcher has complete combinations of genes that parental varieties possess. The paper analyses additivity and dominance of the crossbreeding population. It allows to assess the contribution made by the main types of gene interactions to parameter expression by decomposing the genotypic variant into a general and specific combination ability. The research aims at exploring the variability of winterhardiness of soft winter wheat and determining the system of genetic determination of this indicator. The experiment was conducted in the experimental field of Siberian Research Institute of Agriculture in Omsk in 2013-2014. The varieties and hybrids of F1 had triple sowing. The area of plant nutrition was 10 x 20 (cm2). The coulisse fallow was forecrop. The authors explored six samples of soft winter wheat and 30 F1 diallel hybrids. They observed reliable differences among genotypes according to “winterhardiness” parameter (P ≤ 0.05). Variability of this parameter is specified by meteorological conditions (95.07%) and determined by means of two-factor dispersion analysis. The authors used Heiman’s figures in order to evaluate and explore the genetic features of winter wheat winterhardiness (relationship between Wr and Vr - covariance and variant) and genetic parameters. The OCS effect was high (P<0.05), therefore, additive genes played an important role in the features heritability. The effect of SCS was high and reliable as well. Positive correlation values (r (2013) = 0.81 and (r (2014) = 0.19) among the average parental values (P) and (Wr + Vr) indicate that their dominance is indirect and recessive genes may increase winterhardiness. The average dominance parameter was higher than 1. This proves the great contribution of nonadditive genes to possessing winterhardiness. Selection of unique genotypes with strong winterhardiness is supposed to occur in older generations of hybrids (F4 - F6). The Zhemchuzhina Povolzhya variety can become a donor in stressful conditions of overwintering (OCS effect is 13.33), in favorable conditions – Fantasia variety (OCS=12.69).


2008 ◽  
Vol 2 (2) ◽  
pp. 92-99 ◽  
Author(s):  
Ebenezer Mensah ◽  
Samuel Nii Odai ◽  
Dela Sipitey ◽  
Shoji Ryo ◽  
Esi Awuah

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