Effect of replications on measuring wheat plant height

1995 ◽  
Vol 75 (1) ◽  
pp. 171-173 ◽  
Author(s):  
N. Budak ◽  
P. S. Baenziger ◽  
K. M. Eskridge
Keyword(s):  
Triticum Aestivum ◽  
Plant Height ◽  
Great Plains ◽  
Selection Criterion ◽  
Wheat Plant ◽  
Triticum Aestivum L ◽  
Accurate Estimate ◽  
Breeding Programs ◽  
Wheat Genotypes ◽  
Detectable Difference

Plant height is an important selection criterion in wheat (Triticum aestivum L.) breeding programs that are conducted in the ecogeographically diverse Great Plains. Despite this diversity, measuring plant height on only two replications provided a very accurate estimate of the cultivar mean in each trial and of the detectable difference between two wheat genotypes. Key words:Triticum aestivum, statistics

Using transpiration to characterize plant height in winter wheat in different environments: A simulation study

1995 ◽  
Vol 75 (3) ◽  
pp. 583-587 ◽  
Author(s):  
A. Weiss ◽  
N. Budak ◽  
P. S. Baenziger
Keyword(s):  
Winter Wheat ◽  
Plant Height ◽  
Great Plains ◽  
Seedling Emergence ◽  
Wheat Plant ◽  
Triticum Aestivum L ◽  
Growth And Yield ◽  
Yield Model ◽  
Climatic Regions ◽  
Height Predictions

Winter wheat (Triticum aestivum L.) plant height is an important trait for the diverse environmental conditions found in the Great Plains. It has been related to seedling emergence, lodging, soil erosion, ease of harvest, crop residue and weed control. The hypothesis that transpiration, which integrates atmosphere, soil, and plant processes, could be used to characterize environmental effects on wheat plant height was tested in this research. Data from four commercial winter wheat cultivars (Arapahoe, TAM107, Vista, and Siouxland) and nine environments in Nebraska in 1992 and 1993 were used. The climatic regions represented in this study ranged from sub-humid to semiarid. To test our hypothesis, a spring wheat growth and yield model was modified to predict plant height development (modeled as a sigmoidal function of time) in winter wheat. Daily height increment was based on the ratio of actual to potential transpiration. The model was run for these four cultivars in eight environments. Data from the ninth environment was used to estimate maximum plant height for each cultivar; a necessary input into the model. Modeled plant height predictions were in good agreement with actual measurements for all environments (R2 = 0.80). Based on these results, we conclude that transpiration was a good indicator of environment for plant height development in winter wheat. Key words:Triticum aestivum L., plant height, transpiration, modeling

scholarly journals Variabilitatea genotipurilor de colecţie de grâu (Triticum aestivum L.) în baza sensibilităţii la unele maladii fungice

2021 ◽  
Author(s):  
Nicolae Cristea ◽  
◽  
Galina Lupascu ◽  
Svetlana Gavzer ◽  
◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Common Wheat ◽  
Triticum Aestivum L ◽  
Brown Rust ◽  
Fungal Diseases ◽  
Extreme Drought ◽  
Initial Material ◽  
Breeding Programs ◽  
Wheat Genotypes ◽  
The Common

The common wheat genotypes under study showed a differentiated variability in terms of suscep-tibility to septoria, brown rust, spike fusariosis, which made it possible to differentiate them into clusters and identify those with higher resistance to these diseases. Based on the assessments from 2020-2021, the varieties Trubion, Numitor, Urbanus, Python, Miranda, Centurion, Amor, Aneta, Neven, Messino, Nasnaga, Tika-Taka, Judița, Avenue, Speranța, Dacia, Transilvania, Selania, Avânt which have shown resistance to extreme drought, fungal diseases and high indices of the spike productivity elements can be recommended as the initial material for the breeding programs.

Residue production of semidwarf and conventional wheat genotypes

1993 ◽  
Vol 73 (3) ◽  
pp. 769-776 ◽  
Author(s):  
J. M. Clarke ◽  
R. M. DePauw
Keyword(s):  
Triticum Aestivum ◽  
Plant Height ◽  
Harvest Index ◽  
Crop Residues ◽  
Conservation Tillage ◽  
Triticum Aestivum L ◽  
Genotypic Differences ◽  
Tillage Systems ◽  
Wheat Genotypes ◽  
Triticum Spp

Crop residues are important components of conservation tillage systems, but little information is available on genotypic differences in residue production, particularly with regard to the differences between semidwarf and conventional (tall) genotypes. The objective of this research was to determine the influence of genotype and environment on height and non-grain residue production of semidwarf and conventional-height wheat (Triticum spp.). Locally adapted semidwarf and conventional height common (T. aestivum L.) and durum (T. turgidum L. var. durum) wheat genotypes were grown in up to three environments (fallow, irrigation, and stubble) during the years 1983 to 1988, and 1991. Residue yields of semidwarf and conventional genotypes, and of short and tall conventional genotypes, were compared within and between wheat classes. Within classes, residue yield of semidwarf genotypes tended to be lower (P < 0.05) than that of conventional genotypes. Residue yield of the semidwarf HY320 from the high yielding Canada Prairie Spring class was similar to that of the conventional Canada Western Red Spring cultivar Neepawa. Within the conventional height group, the tallest genotypes tended to have higher residue yields than the shortest genotypes, although the differences were not consistent. Residue yield differences among genotypes were associated with variation in grain yield, plant height, and harvest index. Key words: Triticum aestivum L., T. turgidum L. var. durum, harvest index, plant height.

Effect of 24-epibrassinolide on localization of ABA, AZP, and dehydrins in wheat plant roots during dehydration

Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 329-336
Author(s):  
A.R. Lubyanova ◽  
F.M. Shakirova ◽  
M.V. Bezrukova
Keyword(s):  
Triticum Aestivum ◽  
Wheat Germ ◽  
Wheat Plant ◽  
Triticum Aestivum L ◽  
Immunohistochemical Localization ◽  
Plant Roots ◽  
Wheat Roots ◽  
Wheat Seedlings ◽  
Apoplastic Barrier ◽  
Protective Proteins

We studied the immunohistochemical localization of abscisic acid (ABA), wheat germ agglutinin (WGA) and dehydrins in the roots of wheat seedlings (Triticum aestivum L.) during 24-epibrassinolide-pretreatment (EB-pretreatment) and PEG-induced dehydration. It was found coimmunolocalization of ABA, WGA and dehydrins in the cells of central cylinder of basal part untreated and EB-pretreated roots of wheat seedlings under normal conditions and under osmotic stress. Such mutual localization ABA and protective proteins, WGA and dehydrins, indicates the possible effect of their distribution in the tissues of EB-pretreated wheat roots during dehydration on the apoplastic barrier functioning, which apparently contributes to decrease the water loss under dehydration. Perhaps, the significant localization of ABA and wheat lectin in the metaxylem region enhances EB-induced transport of ABA and WGA from roots to shoots under stress. It can be assumed that brassinosteroids can serve as intermediates in the realization of the protective effect of WGA and wheat dehydrins during water deficit.

scholarly journals Path analysis of grain yield associated characters in Brazilians wheat genotypes (Triticum aestivum L.)

2017 ◽  
Vol 11 (11) ◽  
pp. 1406-1410 ◽  
Author(s):  
Ivan Ricardo Carvalho ◽  
◽  
Maicon Nardino ◽  
Diego Nicolau Follmann ◽  
Gustavo Henrique Demari ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Path Analysis ◽  
Triticum Aestivum L ◽  
Wheat Genotypes

scholarly journals EFFECT OF EMS ON ANTIOXIDANT ENZYME ACTIVITY AND OXIDATIVE STRESS OF TRITICUM AESTIVUM L. VAR HD-2894

2018 ◽  
Vol 10 (1) ◽  
pp. 33
Author(s):  
Shailja Dubey ◽  
Renu Bist ◽  
Shrilekha Misra
Keyword(s):  
Lipid Peroxidation ◽  
Triticum Aestivum ◽  
Data Analysis ◽  
Treatment Time ◽  
Lethal Dose ◽  
Wheat Plant ◽  
Biochemical Parameter ◽  
Triticum Aestivum L ◽  
Enzymatic Antioxidants ◽  
Functional Variation

Objective: Ethyl methano sulphonate (Ems), a chemical mutagen is widely used to induce a large number of functional variation in wheat plant. The objective of present study was to determine the activity of enzymatic antioxidants and Lipid peroxidation (LPO) after EMS exposure in a wheat plant in M1, M2 and M3 generation of Triticum aestivum L. var. HD 2894.Methods: Presoaked seeds were treated with EMS for 6 hour with different concentration like 0%, 0.1%, 0.2%, 0.3%, 0.4% and 0.5%. Some biochemical parameter such as Catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR) and Lipid peroxidation (LPO) were studied.Results: Our result showed that EMS affects enzymatic and oxidative parameters in all generation. CAT, GR, APX and LPO activity was found to be reduced in m1 generation as compared to control. A simultaneous elevation was recorded in the concentration of ems compared to control treated plants after given the exposure of ems in m2 and m3 generation. Data analysis of antioxidant and LPO during the m2 generation showed that the effect of the mutagen on the activity of antioxidant and LPO did not cease in the m1 but continued to affect the m2 generation. Analysis of m3 generation showed stability in the activity of antioxidant and LPO from m2 to m3 generation.Conclusion: Lethal dose of ems was determined by the activity of antioxidant under laboratory condition. In this experiment, quantitative determination was applied as a regular procedure. The data analysis showed the activity of antioxidant, LPO and doses of ems concentration in m1, m2 and m3 generation. Variability observed on the basis of mean and standard deviation. On the whole, differences between concentrations and treatment time of Ems significantly affect the activity of antioxidant and LPO in all generation. 

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