DEVELOPMENTAL MORPHOLOGY OF THE INFLORESCENCE IN HEXAPLOID WHEAT CULTIVARS WITH AND WITHOUT THE CULTIVAR NORIN 10 IN THEIR ANCESTRY

1973 ◽  
Vol 53 (1) ◽  
pp. 7-15 ◽  
Author(s):  
JOHN E. FISHER
Keyword(s):  
Triticum Aestivum ◽  
Apical Dominance ◽  
Triticum Aestivum L ◽  
Leaf Primordia ◽  
Developmental Pattern ◽  
Morphological Development ◽  
Wheat Cultivars ◽  
Developmental Morphology ◽  
Secale Cereale L ◽  
The Individual

The morphological development of the spike in short-statured hexaploid wheats (Triticum aestivum L.) derived from the cultivar Norin 10, and in Norin 10 as well, was markedly different from that in standard hexaploid wheats. In Norin 10 and its derivatives, the single ridges (slowly growing leaf primordia) on the elongating apex were considerably larger and spikelet primordia initiation and expansion were markedly delayed, resulting in a long apex with many single ridges. When spikelet development commenced, it was much more synchronous and hence gave rise to longer heads than in standard wheat in which spikelet development began soon after the start of the elongation of the apex. In most Norin 10 derivatives, more spikelets were initiated than in standard wheat. Apical dominance in the spike appeared to be stronger than in standard wheats. Also, apical dominance within the individual spikelets appeared to be greater, the net result being more fertile florets per spikelet. The developmental pattern of the spike of Norin 10 and its derivatives resembled, to a marked degree, the developmental pattern of rye (Secale cereale L.).

scholarly journals The apical dominance in winter wheat

1970 ◽  
Vol 21 ◽  
pp. 133-137 ◽  
Author(s):  
O. I. Zhuk
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Mineral Nutrition ◽  
Apical Dominance ◽  
Triticum Aestivum L ◽  
Stem Growth ◽  
Wheat Cultivars ◽  
Wheat Grain ◽  
Plant Mineral Nutrition ◽  
Winter Wheat Cultivars

Aim. The aim of this work was to study the influence of apical dominance in winter wheat on stem growth and productivity. Methods. Winter wheat (Triticum aestivum L.) cultivars ‘Podolyanka’ and ‘Pridniprovska’, ‘Novokievska’ were grown on mixture of soil and sand in pots with capacity of 7.5 kg. Optimal plant mineral nutrition was N160 P160 K160. The stem growth was measured. After ear maturing the quantity of grains in ear, and mass of 1000 grains were measured. Results were statistically analyzed with ANOVA. Results. The length of winter wheat stems and grain quantity in ear of main and lateral stems were studied under optimal mineral nutrition. The highest number of grains was detected in main stems. The tillers had less quantity of grains than main stems. The wheat cv. ‘Novokievska’ was more productive than cv. ‘Podolyanka’ and ‘Pridniprovska’. Conclusions. It is shown that the main stem is dominant over lateral stems of winter wheat cultivars ‘Podolyanka’ and ‘Pridniprovska’, ‘Novokievska’. Keywords: Triticum aestivum, winter wheat, grain, stem, apical dominance.

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 Tolerância de cultivares de trigo, triticale e centeio em diferentes níveis de alumínio em solução nutritiva

Bragantia ◽  
1984 ◽  
Vol 43 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Carlos Eduardo de Oliveira Camargo ◽  
João Carlos Fenício
Keyword(s):  
Triticum Aestivum ◽  
Secale Cereale ◽  
Triticum Durum ◽  
Triticum Aestivum L ◽  
Secale Cereale L

Foram estudados sete cultivares de trigo (Triticum aestivum L. ), um de trigo duro (Triticum durum L.), sete de triticale e dois de centeio (Secale cereale L.), em soluções nutritivas contendo quatro níveis de alumínio tóxico. A tolerância foi medida pela capacidade de as raízes primárias continuarem a crescer em soluçâo sem alumínio após um período de 48 horas em solução contendo uma concentração conhecida de alumínio. A temperatura de 28 ± 1 °C foi mantida constante nas soluções durante o experimento. Os cultivares de centeio, Goyarowo e Branco, foram tolerantes a 20mg/ litro de Al3+; os de trigo, Siete Cerros, Tobari-66 e Cocorit, foram sensíveis a 5mg/lítro de alumínio, porém BH-1146, IAC-5, BR-1 e IAC-18 foram tolerantes e, IAC-17, moderadamente tolerante a essa concentração de alumínio; os cultivares de triticale, PFT-763, TCEP-77142, PFT-764, TCEP-75709, Cynamon, TCEP-77138 e TCEP-77136, foram tolerantes a 5mg/litro de Al3+. Todos os cultivares de trigo e triticale foram sensíveis a 10mg/litro de Al3+.

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.

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

Sign in / Sign up

Export Citation Format

Share Document