scholarly journals Variation of grain growth of wheat cultivars

1970 ◽  
Vol 34 (3) ◽  
pp. 351-359
Author(s):  
SK Adhikary ◽  
MZ Alam ◽  
NK Paul
Keyword(s):  
Triticum Aestivum ◽  
Linear Regression ◽  
Grain Growth ◽  
Growth Pattern ◽  
Correlation Coefficients ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
Regression Coefficients ◽  
Cultivar Differences ◽  
Wheat Cultivars

An experiment was carried out to study the grain growth pattern of wheat (Triticum aestivum L.) cultivars and to find out association and linear regression of spike weight and grain weight with time. Spike characters indicated that cultivar differences were significant in all the cases with a few exceptions. Linear regression and correlation coefficients revealed that the association between both spike weight and grain weight with time were highly positively significant among the cultivars but their regression coefficients were non- significant. Key Words: Grain growth, correlation, regression, wheat. DOI: 10.3329/bjar.v34i3.3960 Bangladesh J. Agril. Res. 34(3) : 351-359, September 2009

scholarly journals Leaf Anatomical Characteristics in Relation to Grain Yield of Wheat (Triticum aestivum L.) Cultivars

1970 ◽  
Vol 15 ◽  
pp. 153-158 ◽  
Author(s):  
SK Adhikary ◽  
MZ Alam ◽  
SA Haider ◽  
NK Paul
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Flag Leaf ◽  
Wheat Yield ◽  
Correlation Coefficients ◽  
Triticum Aestivum L ◽  
Cultivar Differences ◽  
Radial Dimension ◽  
Anatomical Characters ◽  
Leaf Anatomical Characteristics

An experiment was carried out to study the variability of leaf anatomical characters of wheat (Triticum aestivum L.) cultivars and their association with grain yields. Results indicated that in most of the cases cultivar differences were significant. In respect of 6th leaf anatomical characters, simple correlation coefficients indicated that most of the leaf anatomical traits had significant negative relation with grain yield whereas in respect of flag leaf anatomical traits, only the association between radial dimension of big xylem vessel and grain yield was significantly negative and the correlation between number of veins and grain yield was significantly positive. Key words: Leaf anatomy, wheat, yield, correlation   doi: 10.3329/jbs.v15i0.2156   J. bio-sci. 15: 153-158, 2007

scholarly journals Diversity of Productivity Traits in Hybrid Lines of Aegilops L. with Triticum aestivum L.

2020 ◽  
Vol 73 (1) ◽  
Author(s):  
Roman Prażak ◽  
Jacek Gawroński
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
Stem Diameter ◽  
Wheat Cultivars ◽  
Spike Density ◽  
Wide Hybrids ◽  
Hybrid Lines ◽  
Main Tiller

Variation in productivity traits and their correlations were studied in 16 hybrid lines of <em>Aegilops kotschyi</em> Boiss. and <em>A. variabilis</em> Eig. with <em>Triticum aestivum</em> L. and their parental components. In comparison to the wheat cultivars, most of the hybrid lines exhibited higher tillering, whereas the length of the main tiller and spike rachis were similar to the values for the wheat cultivars. The values of other traits, such as basal stem diameter, main spike density, fertility, and a 1,000-grain weight in hybrid lines were varied. In some lines, the value of these traits was higher or similar to that of wheat cultivars, whereas in others it was lower. Among the hybrids, [(<em>A. kotschyi</em> × ‘Rusałka’) × ‘Begra’] × ‘Turnia’ was distinguished in having the greatest basal stem diameter, longest spikes, highest fertility, and greatest 1,000-grain weight. The hybrid lines exhibited greater variation in the analyzed traits than did the wheat cultivars. In the hybrid lines, the main tiller length and basal stem diameter were positively correlated with fertility and 1,000-grain weight, whereas in wheat cultivars there were negative correlations for these traits. The results confirmed that wide hybrids can be used to eliminate the negative correlations between productivity traits in wheat. Analysis of clusters in terms of productivity traits provided information on the similarity and diversity of hybrid lines, which may prove useful in their further selection.

The Effect of Boron on Pollen Development in Two Wheat Cultivars (Triticum aestivum L., cv. ‘Fang 60’ and ‘SW 41’)

2002 ◽  
pp. 181-185 ◽  
Author(s):  
Duangjai Nachiangmai ◽  
Bernie Dell ◽  
Longbin Huang ◽  
Richard W. Bell ◽  
Benjavan Rerkasem
Keyword(s):  
Triticum Aestivum ◽  
Pollen Development ◽  
Triticum Aestivum L ◽  
Wheat Cultivars

scholarly journals Grain filling parameters in high-yielding ns wheat cultivars

2008 ◽  
pp. 53-58
Author(s):  
Milka Brdar ◽  
Marija Kraljevic-Balalic ◽  
Borislav Kobiljski
Keyword(s):  
Multivariate Analysis ◽  
Nonlinear Regression ◽  
Environmental Conditions ◽  
Dry Weight ◽  
Grain Filling ◽  
Grain Weight ◽  
Cultivar Differences ◽  
Wheat Cultivars ◽  
Estimated Parameters ◽  
Grain Filling Duration

Grain yield of wheat is dependent on grain weight, which is the result of grain filling duration and rate. The study was undertaken to examine the relation between grain weight and rate and duration of grain filling in five high-yielding NS wheat cultivars. Stepwise multivariate analysis of nonlinear regression estimated grain filling parameters was used to examine cultivar differences in grain filling. On the basis of three-year average, the highest grain dry weight had cultivar Renesansa, and the lightest grains were measured for cultivar Evropa 90. Stepwise multivariate analysis indicated that all three nonlinear regression estimated parameters (grain weight, rate and duration of grain filling) were equally important in characterizing the grain filling curves of the cultivars studied, although sequence of their significance varied in different years, which is probably caused by different environmental conditions in three years of experiment.

scholarly journals Contribution of Ascorbate and Glutathione in Endobacteria Bacillus subtilis-Mediated Drought Tolerance in Two Triticum aestivum L. Genotypes Contrasting in Drought Sensitivity

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2557
Author(s):  
Dilara Maslennikova ◽  
Oksana Lastochkina
Keyword(s):  
Triticum Aestivum ◽  
Bacillus Subtilis ◽  
Drought Tolerance ◽  
Triticum Aestivum L ◽  
Subtilis Strain ◽  
Wheat Cultivars ◽  
Stress Markers ◽  
Drought Tolerant ◽  
Adaptation To Drought ◽  
Significant Activation

We evaluated the effect of endobacteria Bacillus subtilis (strain 10–4) as a co-inoculant for promoting plant growth and redox metabolism in two contrasting genotypes of Triticum aestivum L. (wheat): Ekada70 (drought tolerant (DT)) and Salavat Yulaev (drought susceptible (DS)) in early stages of adaptation to drought (12% PEG–6000). Results revealed that drought reduced growth and dramatically augmented oxidative stress markers, i.e., hydrogen peroxide (H2O2) and lipid peroxidation (MDA). Furthermore, the depletion of ascorbate (AsA) and glutathione (GSH), accompanied by a significant activation of ascorbate peroxidase (APX) and glutathione reductase (GR), in both stressed wheat cultivars (which was more pronounced in DS genotype) was found. B. subtilis had a protective effect on growth and antioxidant status, wherein the stabilization of AsA and GSH levels was revealed. This was accompanied by a decrease of drought-caused APX and GR activation in DS plants, while in DT plants additional antioxidant accumulation and GR activation were observed. H2O2 and MDA were considerably reduced in both drought-stressed wheat genotypes because of the application of B. subtilis. Thus, the findings suggest the key roles in B. subtilis-mediated drought tolerance in DS cv. Salavat Yulaev and DT cv. Ekada70 played are AsA and GSH, respectively; which, in both cases, resulted in reduced cell oxidative damage and improved growth in seedlings under drought.

scholarly journals Polymorphism of Gli-D1 alleles of Kragujevac’s winter wheat cultivars (Triticum aestivum L.)

Genetika ◽  
2007 ◽  
Vol 39 (2) ◽  
pp. 273-282
Author(s):  
Desimir Knezevic ◽  
Aleksandra Novoselskaya-Dragovich
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Molecular Mass ◽  
Gel Electrophoresis ◽  
Polyacrylamide Gel Electrophoresis ◽  
Triticum Aestivum L ◽  
Polyacrylamide Gel ◽  
Wheat Cultivars ◽  
Number Of Components ◽  
Winter Wheat Cultivars

Composition of gliadins encoded by Gli-D1 allele as well polymorphisms of Gli-D1 allele investigated in 25 wheat cultivars by using acid polyacrylamide gel electrophoresis. Electrophoregrams obtained by polyacrylamide gel electrophoresis were used for estimation variability of gliadin components and identification of gliadin blocks. Five gliadin blocks encoded by different alleles at Gli-D1 locus were apparently expressed and identified. Gliadin blocks differed according to number of components and their molecular mass. Variability of determined block components indicates that existing polymorphisms of gliadins alleles. Frequency of identified 5 alleles at Gli-D1 locus was in ratio from 4% to 52%. The highest frequency of b allele and the of g allele was found.

Effect of Irrigation Regimes on Grain Growth Indices of Three Winter Wheat (Triticum aestivum L.) Cultivars Under the Iranian Conditions

2008 ◽  
Vol 8 (1) ◽  
pp. 74-77
Author(s):  
H. Dehghanzad ◽  
M.R. Khajeh poo ◽  
H.H. Sharif Aba ◽  
A. Soleimani ◽  
H. Samieinia ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Grain Growth ◽  
Triticum Aestivum L ◽  
Growth Indices ◽  
Irrigation Regimes
Sign in / Sign up

Export Citation Format

Share Document