A Generalized Vernalization Response Function for Winter Wheat

2003 ◽  
Vol 95 (1) ◽  
pp. 155 ◽  
Author(s):  
Nereu Augusto Streck ◽  
Albert Weiss ◽  
P. Stephen Baenziger
Keyword(s):  
Winter Wheat ◽  
Response Function ◽  
Vernalization Response

scholarly journals Vernalization Response of Some Winter Wheat Cultivars (Triticum aestivum L.)

2012 ◽  
Vol 38 (No. 3-4) ◽  
pp. 97-103 ◽  
Author(s):  
J. Košner ◽  
K. Pánková
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Agronomic Traits ◽  
Triticum Aestivum L ◽  
Vernalization Requirement ◽  
Photoperiod Response ◽  
Vernalization Response ◽  
Multiple Alleles ◽  
Winter Wheat Cultivars ◽  
The Given

For 17 cultivars of winter wheat (Triticum aestivum L.) different vernalization and photoperiod responses were detected. The effect of photoperiod sensitivity was not significantly changed by vernalization; different vernalization responses were probably due to the presence of multiple alleles at Vrn loci. The delay in heading depended on the vernalization deficit exponentially: y = Parameter (1) + (y0 – Parameter (1)) × EXP (Parameter (2) × (x – x0)). The dependence was shown to be general and significant for the given model in all the studied cultivars. Individual regressions characterised responses of cultivars to a deficit of vernalization treatment. Cluster analysis according to the characterisation obtained (full vernalization requirement, minimum vernalization requirement, insufficient vernalization and parameters of the dependence) showed the relationships between cultivars and enabled their grouping by similar profiles of vernalization, and, possibly, of photoperiod response. In individual cultivars, an attempt was made to use the model to predict performance for some agronomic traits.

scholarly journals Detection of the change point in the winter wheat experiment

2012 ◽  
Vol 49 (1) ◽  
pp. 37-44
Author(s):  
Anna Szczepańska ◽  
Ewa Bakinowska
Keyword(s):  
Winter Wheat ◽  
Response Function ◽  
Change Point ◽  
Abrupt Change ◽  
Semiparametric Model ◽  
Real Experiment ◽  
Dry Biomass

SummaryThis paper concerns detection of the change point, which is treated as an abrupt change in the response function or one of its derivatives. The change point is identified using the semiparametric model and the theory given by Speckman (1994). The theory is illustrated by a real experiment in wchich the dry biomass of winter wheat is studied.

Changes in lipids of cereal seedlings during vernalization

1968 ◽  
Vol 46 (9) ◽  
pp. 1093-1097 ◽  
Author(s):  
E. S. Redshaw ◽  
Saul Zalik
Keyword(s):  
Linoleic Acid ◽  
Low Temperature ◽  
Winter Wheat ◽  
Linolenic Acid ◽  
Spring Wheat ◽  
Vernalization Response ◽  
Direct Role ◽  
Wheat Varieties ◽  
Temperature Growth ◽  
Low Temperature Growth

Noticeable changes in lipids were observed during growth of Sangaste fall rye, Prolific spring rye, Kharkov winter wheat, and Red Bobs spring wheat, at vernalizing temperature, over a period of 6 weeks. There was, however, little difference between the trends exhibited by the four varieties, apart from the fact that the rye varieties apparently accumulated more linolenic acid than the wheat varieties whereas the reverse was true for linoleic acid. These results suggested that the lipids under study did not play a direct role in the vernalization response, and the changes observed were a result of low-temperature growth.

scholarly journals The Protein Modifications of O-GlcNAcylation and Phosphorylation Mediate Vernalization Response for Flowering in Winter Wheat

2019 ◽  
Vol 180 (3) ◽  
pp. 1436-1449 ◽  
Author(s):  
Shujuan Xu ◽  
Jun Xiao ◽  
Fang Yin ◽  
Xiaoyu Guo ◽  
Lijing Xing ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Vernalization Response ◽  
Protein Modifications

Molecular cloning and characterization of vernalization-related (ver) genes in winter wheat

1994 ◽  
Vol 92 (3) ◽  
pp. 511-515 ◽  
Author(s):  
Kang Chong ◽  
Li-Ping Wang ◽  
Ke-Hui Tan ◽  
Hua-Liang Huang ◽  
Hou-Guo Liang
Keyword(s):  
Winter Wheat ◽  
Molecular Cloning

Ear growth, developmental stages and yield in winter wheat

Agronomie ◽  
1983 ◽  
Vol 3 (6) ◽  
pp. 537-544 ◽  
Author(s):  
Jean-François LEDENT ◽  
Volkmar STOY ◽  
Helena AIRAKSINEN ◽  
Tomas PATKAI
Keyword(s):  
Winter Wheat ◽  
Developmental Stages

Relevant issues of land reclamation development in Non-black Earth area

2020 ◽  
pp. 5-13
Author(s):  
Georgiy Gulyuk ◽  
Aleksey Ivanov ◽  
Yuri Yanko
Keyword(s):  
Winter Wheat ◽  
Rural Areas ◽  
Land Reclamation ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Nature Management ◽  
Negative Consequences ◽  
Forage Crops ◽  
Edible Roots ◽  
Social Economic Development

Current situation and agricultural management on the non-black earth area of Russia arebeing gradually worsen by the negative natural factors such as a significant increase of weather based climatic abnormal risks, deterioration of agro-meliorative conditions of agricultural lands because of colonization by tree and shrubbery vegetation and secondary bog formation, hidden degradation of soil fertility. When combined with functional loss of ameliorative complex and meliorative systems amortization, regional agriculture adaptation possibilities were rapidly limited. Production shortfall due no abnormal weather conditions for particular field crops was 19…48% during last five years, level of business realization of bioclimatic potential on a field was decreased by 7…12%.The complete realization of regional agricultural adaptive potential to weather based climatic changes and limitation of greenhouse gases emissions is possible on a basis of regeneration ofalll functions and aspects of ameliorative complex management. Toward this goal the coordinated actions of federal and regional management of Agricultural Complex, Scientific and Educational institutions, project foundations and managers are needed in a relation to human resources, scientific and regulatory supply. Any incomplete treatment in these fields inherent in visual negative consequences for food security and social economic development of rural areas of non-black earth zones not only at the current historical moment, but in a future also. Fundamental influence of solving of these problems deserves to scientific supply of innovative ameliorative complex, renewal of which should be based on principals of resources and energy preservation, nature management, computerization and digitalization management. During a long term research it was established that increase of average vegetation period temperature by lоСhas increased productivity of winter wheat, barley and summer wheat in average on 0,7 tons per ha, winter wheat and oat on 0,4 tons per ha, potatoes – 8,2 tons per ha, edible roots-6,4 tons per ha, cabbage 9,8 tons per ha, dry basis of herbage of multi and one age grasses–0,5 and 0,7 tons per ha. Increase of СО2 Concentration from 0,35 to 0,45% during last twenty years contributed into grow of yield in regional agriculture which can be estimated as 0,3 tons per ha per measure; searching remedy for agroclimatical risks decreasing production became drainage and irrigation systems (decrease 3…5 times);new method of reclamation of abandoned areas with transformation of biomass of tree and shrubbery vegetation into biochar makes it possible to decrease СО2 emissions up to times and get an adverse balance of СО2;secondary reclamation of lands covered by trees and shrubbery on area of 22ha used for vegetables and area of 37ha used for forage crops could supply a farmer with work and revenue sufficient for maintenance of one child what is on the major facts of population declaim in rural areas.

The effectiveness of granular chalk use for growing winter wheat on grey forest soil

2020 ◽  
pp. 181-191
Author(s):  
M. Tkachenko ◽  
N. Borys ◽  
Ye. Kovalenko
Keyword(s):  
Winter Wheat ◽  
Physicochemical Properties ◽  
Forest Soil ◽  
Active Substance ◽  
Mass Fraction ◽  
Gray Forest Soil ◽  
Mineral Fertilizers ◽  
Acidic Soils ◽  
Grey Forest Soil

The research aims to establish the eff ectiveness of granular chalk use produced by «Slavuta-Calcium» Ltd. under growing Poliska–90 winter wheat variety, changing the physicochemical properties of grey forest soil and the wheat productivity. It also aims to establish optimal dosis of «Slavuta-Calcium» granular chalk as the meliorant and mineral fertilizer for grey forest soil in the system of winter wheat fertilization. In the temporary fi eld studies, various doses of nutrients N60–90–120P30–45–60K60–90–120 combined with «Slavuta–Calcium» granular chalk in a dose of Ca230–460–690 kg/ha of the active substance were studied against the background of secondary plowing of rotation products – soybean biomass that averaged 2.34 t/ha. Granular chalk is a modern complex highly eff ective meliorant with the content of Ca – 37.7 and Mg – 0.2 %, the mass fraction of carbonates (CaCO3 + MgCO3) makes at least 95 %. It is characterized by a high level of solubility when interacting with moisture in soil. It has a form of white granules, the mass fraction of 4.0–6.0 mm in size granules makes not less than 90 % and the one of 1.0 mm in size makes less than 5 %. Reactivity – 97 %. The granular chalk is advisable to apply on acidic soils, as a highly concentrated calcium-magnesium fertilizer, with the former as the dominant fertilizer, to optimize the physicochemical properties of the soil, as well as the plant nutrition system, in particular, increasing the availability of an element for assimilation by plants and as long-term ameliorants. The eff ectiveness of the use of mineral fertilizers, in particular acidic nitrogen on highly and medium acidic soils, after chemical reclamation is increased by 30–50 %, and slightly acidic by 15–20 %. The increase in productivity of crops from the combined eff ects of nutrients and chalk granulated is usually higher than when separately applied. The eff ectiveness of the integrated action of these elements is manifested in the growth of plant productivity and the quality of the resulting products, as well as the optimization of physical chemical properties and soil buff ering in the long term. In order to optimize the physicochemical properties of the arable layer of gray forest soil and the productive nutrition of agricultural crops, winter wheat, in particular, biogenic elements should be used in doses N60-90-120P30-45- 60K60-90-120 with granulated chalk «Slavuta-Calcium» in doses of Ca230-460-690 kg/ha of active substance. Granulated chalk obtained as a result of industrial grinding of solid sedimentary carbonate rocks of natural origin, subsequently under the infl uence of the granulation process of the starting material contains Ca and Mg carbonates of at least 95 %, dense granules which facilitates convenient mechanized application, as well as chalk suitable for accurate metered application on the quest map. Key words: granular chalk, gray forest soil, chemical reclamation, crop productivity.

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