Etude des protéines des blés résistant, Kharkov, et sensible, Selkirk, au cours de l'endurcissement au froid. II. Protéines solubles et protéines des chloroplastes et des membranes

1975 ◽  
Vol 53 (21) ◽  
pp. 2417-2424 ◽  
Author(s):  
E. Rochat ◽  
H. P. Therrien

Investigations of quantitative and qualitative changes in protein synthesis in two winter wheat varieties have been made during the early stages of cold hardening. When labelling with 35S is made during the hardening treatment, the incorporation of the tracer into proteins is very low in both varieties. However, if labelling at 22 °C precedes hardening, the hardy variety, Kharkov, shows an increase in the incorporation of 35S into the total soluble proteins, and the rate of synthesis of both chloroplast and membrane proteins is maintained during the hardening process. In the less-hardy Selkirk, a very marked decrease in proteogenesis has been observed.Qualitative studies on the incorporation of 35S have not revealed any changes in specific chloroplast and membrane proteins during early stages of cold hardening of the two varieties of winter wheat.

1975 ◽  
Vol 53 (19) ◽  
pp. 2198-2201 ◽  
Author(s):  
D. G. Green ◽  
C. D. Ratzlaff

Soluble carbohydrate patterns of two hardy winter wheat cultivars and two less hardy cultivars were compared during the cold-hardening process. Soluble carbohydrates increased in concentration as the seedlings developed and the cold-hardening process occurred. The largest soluble carbohydrate differentials between the hardy and less hardy winter wheat cultivars occurred in the sucrose and raffinose fractions. The accumulation of sucrose and raffinose in wheat growing at 7.2 °C–0.5 °C day–night was greater in the two less hardy winter wheat cultivars. An inverse relationship existed between soluble sugars and cold hardiness in the four cultivars studied.


2019 ◽  
Vol 24 ◽  
pp. 265-270
Author(s):  
V. V. Morgun ◽  
G. A. Priadkina ◽  
O. O. Stasik ◽  
O. V. Zborіvskaіa

Aim. The search of factors influencing grain productivity, based on the comparison of the mass of dry matter in the aboveground parts of modern winter wheat varieties at the early stages of ontogenesis. Methods. Morphometric determination of biomass of the above-ground plant parts. Results. The varieties and lines of winter wheat with higher yields exceeded the less productive ones by the number of shoots per 1 m2 of soil on 8–12 % and by the dry matter weight of the above-ground plant parts on 23–34 % at the early stages of spring vegetation. According to two-year experiments, it was established a linear positive correlation (r = 0.85–0.86) of the dry matter weight of the above-ground plant parts per 1 m2 of soil during the period of stem elongation (BBCH 31-49) with the yield. Conclusions. The close relationship between yield and dry matter weight of the above-ground plant parts at the early stages of spring vegetation makes it possible to rank winter wheat varieties by potential yield. Keywords: Triticum aestivum L., grain productivity, biomass, early stages of ontogenesis.


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.


Author(s):  
A.Y. Ozheredova ◽  
◽  
A. N. Esaulko ◽  
L.A. Mikhno ◽  
A.P. Shutko ◽  
...  

The article presents materials on the influence of calculated doses of mineral fertilizers on the incidence of powdery mildew, pyrenophorosis and yield of winter wheat varieties cultivated on leached Chernozem for 2016-2018.


Author(s):  
Pigorev I. Ya. Pigorev I. Ya. ◽  
◽  
V.A. Kudinov V.A. ◽  
I.V. Ichkov I.V.

the range of winter wheat varieties in the conditions of sown areas of the Kursk region is considered. The analysis of the varieties used with the priorities and volumes of crops in large enterprises and small business entities of the agro-industrial complex is given.


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