The relationship between lodging and plant height in a diverse wheat population

2006 ◽  
Vol 86 (3) ◽  
pp. 723-726 ◽  
Author(s):  
A. Navabi ◽  
M. Iqbal ◽  
K. Strenzke ◽  
D. Spaner
Keyword(s):  
Triticum Aestivum ◽  
Genetic Variation ◽  
Grain Yield ◽  
Plant Height ◽  
Genetic Gain ◽  
Triticum Aestivum L ◽  
Diverse Population ◽  
Major Contributor ◽  
Wheat Population ◽  
The Relationship

We examined the genetic variation for lodging tolerance in different plant height groups, within a diverse population of wheat (Triticum aestivum L.) genotypes (n = 14 0). Lodging was artificially induced by dragging a weighted apparatus across plots twice during the season at early and late milk stages. Grain yield was negatively correlated with lodging, while lodging scores were positively correlated with plant height. Although plant height appeared to be the major contributor to lodging tolerance, some variation was also observed in taller plants. This suggests that genetic gain in lodging tolerance can be obtained, to some extent, independent of plant height. Key words: Plant height, lodging tolerance, Triticum aestivum L., CIMMYT, Canada

AGRONOMIC AND QUALITY CHARACTERISTICS OF SOME WHITE- AND BROWN-GLUMED SPRING WHEAT POPULATIONS

1969 ◽  
Vol 49 (6) ◽  
pp. 769-771 ◽  
Author(s):  
F. H. McNeal ◽  
M. A. Berg ◽  
D. E. Baldridge
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Spring Wheat ◽  
Grain Quality ◽  
Triticum Aestivum L ◽  
Quality Characteristics ◽  
Or Genes ◽  
Two Populations

White- and brown-glumed populations of spring wheat, Triticum aestivum L., derived by compositing seed from F2 plants and F3 lines, were evaluated at two locations for grain quality, grain yield, and other plant variables. The similarity of data from the two populations suggests that the gene, or genes, governing brown glume has little, if any, influence on most of the agronomic and quality characteristics of spring wheat, although small differences were observed in plant height at Bozeman, in spikelets per head at Huntley, and in farinograph stability at Bozeman.

scholarly journals Residual impact of wellgrow formulation and npk on growth and yield of wheat (Triticum aestivum L.)

2015 ◽  
Vol 44 (1) ◽  
pp. 143-146 ◽  
Author(s):  
VS Meena ◽  
BR Maurya ◽  
RS Meena
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Dry Matter ◽  
Growth Parameters ◽  
Triticum Aestivum L ◽  
Organic Manure ◽  
Growth And Yield ◽  
Straw Yield ◽  
Matter Production

Effect of concentrate organic manure (wellgrow grain and wellgrow soil) and NPK improved the growth and yield of wheat. Significant improvement in terms of growth parameters like plant height, tillers, dry matter production and productive tillers with application of 120 : 60 : 60 NPK + 300 kg wellgrow soil/ha and at par with application of 120 : 60 : 60 NPK + 300 kg wellgrow grain/ha, treatment receiving 100% NPK + 300 kg wellgrow soil/ha resulted maximum grain yield (4545 kg /ha). Treatment of 100% NPK + 300 kg wellgrow grain/ha maintained higher straw yield (5715 kg/ha) and test weight (44.10 g) due to application of 100 % NPK along with 200 kg wellgrow soil/ha whereas it was at par with application of 75 and 100% NPK with both levels of wellgrow formulation. DOI: http://dx.doi.org/10.3329/bjb.v44i1.22738 Bangladesh J. Bot. 44(1): 143-146, 2015 (March)

scholarly journals Comparative Genetic Effect of Dwarfing Genes on Yield and Yield Contributing Traits in Bread Wheat (Triticum aestivum L.)

2014 ◽  
Vol 18 (2) ◽  
pp. 49-55
Author(s):  
MA Jahan ◽  
MS Hossain ◽  
M Khalekuzzaman ◽  
MM Hassan
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Bread Wheat ◽  
Yield Components ◽  
Genetic Effect ◽  
Triticum Aestivum L ◽  
High Yield ◽  
Strong Positive Correlation ◽  
Dwarfing Genes

Norin 10 based dwarfing genes (Rht1 and Rht2) have been widely exploited for increasing the grain yield in bread wheat (Triticum aestivum L.) by improving partitioning of assimilates to grain. Eight semi-dwarf wheat genotypes having either Rht1 or Rht2 dwarfing genes were compared with a tall control named, Kheri (rht) having no dwarfing genes were evaluated at Rajshahi University, Bangladesh for yield and yield contributing traits. Significant differences in grain yield and yield components were observed in genotypes under study showing the effects of dwarfing genes. Genotype Seri 82 (Rht1) and Kanchan (Rht2) had medium plant height of 75.73 and 72.22 cm respectively, highest number of tillers/plant (7.33 and 7.67), highest number of spikes/plant (6.33 and 6.67) resulted the highest grain yield per plant. Because the dwarfing genes not only provide lodging tolerance but also perhaps pleiotropically affected high yield by allowing more tillers to survive. Number of tillers/plant and number of spikes/plant showed very strong positive correlation with grain yield per plant in all the genotypes. Kheri (rht) with highest plant height (95.17cm) reduced number of tillers/plant (4.00) and spikes/plant (3.67) had the lowest grain yield per plant (3.85g). Aghrani possessed significantly the highest number of grains/spike with medium grain yield/plant (5.94g). The degree of relationship varied from genotype to genotype.DOI: http://dx.doi.org/10.3329/pa.v18i2.18075 Progress. Agric. 18(2): 49 - 55, 2007

scholarly journals EVALUATION BREAD WHEAT PURE LINES UNDER EFFECT OF DIFFERENT SEEDING RATES

2016 ◽  
Vol 47 (5) ◽  
Author(s):  
Baktash & Naes
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Bread Wheat ◽  
Harvest Index ◽  
Pure Line ◽  
Triticum Aestivum L ◽  
Research Station ◽  
Biological Yield ◽  
Pure Lines

This research was carried out at the Swerah Research Station –Office of Agricultural Researches during  2014-2015 seasons. The objective of this research was evaluation bread wheat  (Triticum aestivum L.) genotypes ,which concluded 15 pure lines in seventh generation, which developed by half dialld method between 6 parents ,The experiment was conducted using split plot arrangement with RCBD design with three replicates ,The main plots content four seeding rates (120, 160, 200 and 240 kg.ha-1 ), while the 21 genotypes occupied sub plots .The two pure lines S97 and S148 superoired to all other genotypes except A4.10 and Abu-Ghraib  in grain yield which, produced 6.35 and 6.09 t.ha-1 .Increasing seeding rates caused early flowering, increased plant height, biological yield and harvest index. Significant differences were found in all the studied characters due to genotypes and seeding rates interaction. The pure line S148 ,using 200 kg.ha-1 seeding rates produced highest grain yield (7.49 t.ha-1).

scholarly journals Estimation of genetic variability, heritability and correlation for some quantitative traits in wheat (Triticum aestivum L.)

2019 ◽  
Vol 28 ◽  
pp. 81-86
Author(s):  
FMA Haydar ◽  
MS Ahamed ◽  
AB Siddique ◽  
GM Uddin ◽  
KL Biswas ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Genetic Variability ◽  
Grain Yield ◽  
Plant Height ◽  
Quantitative Traits ◽  
Significant Positive Correlation ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
Spike Length ◽  
Coefficients Of Variations

Seventeen genotypes of wheat were used in this study the results showed significant differences in respect of yield and other yield contributing characters. Highest phenotypic and genotypic coefficients of variations were observed in plant height and lowest values were observed in spike length in both cases.Heritability estimated was found to be high in case of grain yield/plant and this was followed by 100 grain weight. Significant positive correlation was found in plant height with number of fertile tillers/plant and grain yield/plant, fertile tillers/plant with spike length, spike length with grain yield and grain yield with 100 grain weight. Negative correlation was found in plant height with 100 grain weight. Plant height, fertile tillers/plant, spike length and 100 grain weight appeared to be the effective criteria for improvement of yield of wheat. J. bio-sci. 28: 81-86, 2020

scholarly journals Assessment of Genetic Diversity and Character Associations for Yield and Its Traits in Bread Wheat (Triticum aestivum L.)

2021 ◽  
Author(s):  
Anuj Kumar ◽  
Pooran Chand ◽  
Ravi Singh Thapa ◽  
Tejbir Singh
Keyword(s):  
Genetic Diversity ◽  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Harvest Index ◽  
Triticum Aestivum L ◽  
Wheat Crop ◽  
Cluster Distance ◽  
Biological Yield ◽  
Late Sowing

Background: Wheat (Triticum aestivum L.) an important self-pollinated and hexaploid (2n = 6x = 42) cereal crop belongs to the grass family Gramineae (Poaceae). With the gradual increase in human population, there is a substantial increase in the demands for food requirements. Hence, increasing the wheat production is an important goal to overcome the demand of food. The only alternative is to increase productivity by better crop management techniques and introduction of high yielding varieties. The current study aimed to study the genetic diversity in wheat genotypes for further selection and utilization in breeding programmes and identification of transgressive segregants for genetic improvement in wheat crop. Methods: In the field investigation during 2017-2019, forty genotypes were evaluated at research farm of Department of Genetics and Plant Breeding, Kisan P.G. College, Simbhaoli, Hapur (U.P). The observations were recorded on five randomly selected competitive plants from each genotype in each replication and recorded data from each replication was subjected to statistical analysis. Result: Significant differences were observed for all the characters studied in both environments (early and late). Highest GCV and PCV were recorded for flag leaf area, number of tillers per plant and grain yield in both environments. Plant height, days to 50% heading and grain yield in early sowing and for plant height, gluten content and grain yield exhibited high heritability estimates in late sowing. Biological yield and harvest index showed positive and significant association with grain yield under both environments. Biological yield and harvest index have positive and direct effect on grain yield in both environments. Forty genotypes were grouped into seven clusters in early sowing and six clusters in late sowing. Maximum inter cluster distance was observed between clusters VI and IV in early sowing and between cluster III and II in Late sowing. Genotypes PBW-34 showed wide genetic diversity in both the environments (early and late sowing). Based on the divergence studies it is suggested that maximum heterosis and good recombinants could be obtained in crosses between the genotypes of clusters which showed highest inter cluster distance and these genotypes can be utilized in crop improvement programmes.

scholarly journals On Farm Testing of Rice Residue Management Techniques for Wheat (Triticum aestivum L.) Establishment in Punjab

2021 ◽  
Vol 57 (4) ◽  
pp. 85-88
Author(s):  
Alok Gupta ◽  
Pritpal Singh ◽  
Gurdeep Singh ◽  
Bhallan Singh Sekhon ◽  
Gurjinder Pal Singh Sodhi
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Plant Height ◽  
Triticum Aestivum L ◽  
Grain Weight ◽  
The Other ◽  
Residue Management ◽  
Wheat Grain ◽  
Residue Incorporation ◽  
1000 Grain Weight

Rice residue management (RRM) has been the key component of systems’ sustainability. The paper reports the effect of different RRM and wheat (Triticum aestivum L.) establishment methods on productivity and yield contributing attributes through farmer participatory mode in south-western Punjab. Different RRM technologies including rice residue removal, residue incorporation and residue retention on soil as surface mulch were evaluated. Wheat grain yield was significantly (p<0.05) higher with happy seeder method of wheat establishment following chopping of loose rice stubble, which acts as surface mulch, compared with the other RRM technologies. Wheat grain yield in other RRM technologies viz. rice residue incorporation and removal did not differ significantly. The yield contributing attributes viz. plant height, number of effective tillers m-1 row length, 1000-grain weight, ear length and the number of grains ear-1 were significantly higher in happy seeder method of wheat establishment. The weed count (Phalaris minor) was significantly lower than the other compared methods of RRM. The correlation matrix exhibited a linear positive relationship between the grain yield and plant height (r=0.951*; p<0.05), ear length (r=0.941*), 1000-grain weight (r=0.853*) and number of grains ear-1 (r=0.771*). All economic indices viz. average net (Rs. 74, 840/- ha-1), gross returns (Rs. 1,00,620/- ha-1) and benefit-cost (B:C; 3.9) ratio were significantly enhanced because of low cost of cultivation (Rs. 25,780/- ha-1) under happy seeder method of wheat establishment.

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