scholarly journals Awns reduce grain number to increase grain size and harvestable yield in irrigated and rainfed spring wheat

2016 ◽  
Vol 67 (9) ◽  
pp. 2573-2586 ◽  
Author(s):  
G. J. Rebetzke ◽  
D. G. Bonnett ◽  
M. P. Reynolds
Keyword(s):  
Grain Size ◽  
Spring Wheat ◽  
Grain Number

Influence of heterosis value in spring wheat hybrids on the efficiency of valuable selection

2020 ◽  
Author(s):  
A. G. Abramov ◽  
◽  
I.N. Abramova
Keyword(s):  
Grain Size ◽  
Spring Wheat ◽  
Grain Weight ◽  
Irkutsk Region ◽  
Wheat Hybrids

The article presents the results of the influence of the magnitude of heterosis on the main elements of the formation of yield (grain size and productivity of the main spike) of spring wheat in the Irkutsk region. The following were used as maternal varieties: Irgina, Krasnoyarskaya 83, Tulun 15, Tselinnaya 60, Altayskaya 92, Niva 2 and a variety from Mongolia Orkhon 85, as testers - Skala, Angara 86, Tulunskaya 12 The best indicators of hypothetical heterosis were manifested by the number of grains in ear in combinations Krasnoyarskaya 83 × Angara 86, Krasnoyarskaya 83 × Skala, Altai 92 × Skala (81.6 ... 85.7%). In terms of grain weight from the main spike, the best results of hypothetical heterosis were noted in hybrid combinations Krasnoyarskaya 83 × Angara 86, Orkhon 85 × Angara 86, Ni-va × Angara 86, Altai 92 × Angara 86 (100.0 ... 130.7%) ... Krasnoyarskaya 83 × Angara 86, Altai 92 × Angara 86, Or-khon × Angara 86 are recognized as the best hybrid combinations that can give the greatest yield of transgressive forms of elite plants.

scholarly journals The effect of biological preparation Fertenat on spring wheat productivity and quality

2017 ◽  
Vol 24 (1) ◽  
Author(s):  
Juozas Pekarskas ◽  
Algirdas Gavenauskas ◽  
Anželika Dautartė
Keyword(s):  
Spring Wheat ◽  
Strong Correlation ◽  
Wheat Yield ◽  
Wheat Plant ◽  
Agricultural Products ◽  
Grain Number ◽  
Biological Preparation ◽  
Grain Productivity ◽  
Yield Structure ◽  
Plant Stem

The research of the biological preparation Fertenat effect on spring wheat was investigated at the Experimental Station of Aleksandras Stulginskis University in Calc(ar)i-Epihypogleyic Luvisol (LVG-pw-cc) during 2013–2014. Spring wheat was grown according to the requirements of the National Agricultural Products Quality System. Biological preparation Fertenat had a significant effect on the elements of spring wheat yield structure and the values of chemical composition parameters, influenced by the rates of biological preparation and meteorological conditions. A strong correlation was found between the Fertenat rates and spring wheat plant stem and ear length, grain number per ear, total and productive stem number of one plant and 1 000 grain and hectolitre weight. The correlation between the biological preparation rates and protein, wet and dry gluten was strong as well. A strong correlation between the biological preparation rates and starch amount in grain was found in 2013, while in 2014 this correlation was moderate. The application of biological preparation Fertenat increased the spring wheat yield by 0.05–0.30 t ha–1 or by 2.29–13.76 percent units and by 0.02–0.41 t ha–1 or 0.40–8.23 percent units. The application of 6 l ha–1 and higher Fertenat rates significantly increased the spring wheat yield. Small 1–3 l ha–1 rates are inefficient. The correlation between the Fertenat rates and grain productivity was strong.

Kornanzahl automatisch bestimmen / Measuring Grain Number and Grain Size Automatically

1998 ◽  
Vol 40 (5) ◽  
pp. 191-193
Author(s):  
Josef Helmrich ◽  
Jörg Lamprecht
Keyword(s):  
Grain Size ◽  
Grain Number

Searching a spring wheat mutation resource for correlations between yield, grain size, and quality parameters

2017 ◽  
pp. 1-20 ◽  
Author(s):  
Saule S. Kenzhebayeva ◽  
Gulina Doktyrbay ◽  
Nicola M. Capstaff ◽  
Fatma Sarsu ◽  
Nargul Zh. Omirbekova ◽  
...  
Keyword(s):  
Grain Size ◽  
Spring Wheat ◽  
Quality Parameters

Genetic and molecular basis of grain size and grain number and its relevance to grain productivity in higher plants

Genome ◽  
2006 ◽  
Vol 49 (6) ◽  
pp. 565-571 ◽  
Author(s):  
Pushpendra K Gupta ◽  
Sachin Rustgi ◽  
Neeraj Kumar
Keyword(s):  
Grain Size ◽  
Molecular Basis ◽  
Higher Plants ◽  
Consumer Preference ◽  
Crop Plants ◽  
Grain Number ◽  
Domestication Syndrome ◽  
Grain Productivity ◽  
Flour Yield ◽  
End Use

Grain size and grain number constitute 2 important components of grain yield. In particular, the grain size also influences the end-use quality (e.g., flour yield and protein content) and attracts consumer preference. These 2 traits are also the components of the domestication syndrome of crop plants. A number of important studies have recently been conducted to understand the genetic and molecular basis of these 2 important yield-contributing traits. Information generated from these studies was collected and synthesized for the benefit of plant biologists, particularly plant breeders. In the present article, this information is briefly reviewed and the prospects of using this information for improvement of grain productivity in crop plants are discussed.Key words: grain size, grain number, grain productivity, genetics, domestication.

Statistical Calculations of Grinding Abrasive Number Based on Normal Distribution

2012 ◽  
Vol 229-231 ◽  
pp. 474-477 ◽  
Author(s):  
De Xiang Wang ◽  
Pei Qi Ge ◽  
Lei Zhang ◽  
Zhen Jie Zhu
Keyword(s):  
Grain Size ◽  
Normal Distribution ◽  
Hertz Contact ◽  
Grain Number

Sliding and plowing are discriminated based on Hertz contact, and the grain number statistics model is established considering that grain size and abrasive protrusion height fit normal distribution. The analysis shows that less than 5% of grains are contacting with workpiece in the grinding arc, about 96% of contacting grains plow and about 4% cut. Sliding grains accounting for contacting grains is about 0.2%, which is almost negligible.

scholarly journals GW10, a Member of P450 Subfamily Regulates Grain Size and Grain Number in Rice

2021 ◽  
Author(s):  
PengLin Zhan ◽  
Xin Wei ◽  
Zhili Xiao ◽  
Xiaoling Wang ◽  
Shuaipeng Ma ◽  
...  
Keyword(s):  
Grain Size ◽  
Grain Yield ◽  
Grain Shape ◽  
Rice Grain ◽  
Chromosome 10 ◽  
Grain Number ◽  
Tropical Japonica ◽  
Donor Parent ◽  
Lower Expression ◽  
Recipient Parent

Abstract Grain size and grain number play extremely important roles in rice grain yield. Here, we identify GW10 , which encodes a P450 subfamily protein and controlls grain size and grain number by using Lemont ( tropical japonica ) as donor parent and HJX74 ( indica ) as recipient parent. The GW10 locus was mapped into a 20.1 kb region on the long arm of Chromosome 10. Lower expression of the gw10 in panicle is contributed to the shorter and narrower rice grain, and the increased number of grains per panicle. Furthermore, the higher expression levels of some of the brassinosteroid (BR) biosynthesis and response genes are associated with the NIL- GW10 , which strongly suggests that the GW10 is a key node in the brassinosteroid-mediated regulation of rice grain shape and grain number.

scholarly journals Optimizing dry-matter partitioning for increased spike growth, grain number and harvest index in spring wheat

2019 ◽  
Vol 240 ◽  
pp. 154-167 ◽  
Author(s):  
Carolina Rivera-Amado ◽  
Eliseo Trujillo-Negrellos ◽  
Gemma Molero ◽  
Matthew P. Reynolds ◽  
Roger Sylvester-Bradley ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Harvest Index ◽  
Dry Matter ◽  
Grain Number ◽  
Dry Matter Partitioning
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