Multiple origins of Indian dwarf wheat by mutations targeting the TREE domain of a GSK3-like kinase for drought tolerance, phosphate uptake, and grain quality

2020 ◽  
Author(s):  
Ajay Gupta ◽  
Lei Hua ◽  
Guifang Lin ◽  
Istváan Molnár ◽  
Jaroslav Doležel ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Grain Quality ◽  
Phosphate Uptake ◽  
Multiple Origins ◽  
Dwarf Wheat

scholarly journals Drought Tolerant near Isogenic Lines (NILs) of Pusa 44 Developed through Marker Assisted Introgression of qDTY2.1 and qDTY3.1 Enhances Yield under Reproductive Stage Drought Stress

Agriculture ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 64
Author(s):  
Priyanka Dwivedi ◽  
Naleeni Ramawat ◽  
Gaurav Dhawan ◽  
Subbaiyan Gopala Krishnan ◽  
Kunnummal Kurungara Vinod ◽  
...  
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Grain Quality ◽  
Reproductive Stage ◽  
Recurrent Parent ◽  
Near Isogenic Lines ◽  
Improvement Project ◽  
Isogenic Lines ◽  
Drought Tolerant ◽  
Rice Improvement

Reproductive stage drought stress (RSDS) is detrimental for rice, which affects its productivity as well as grain quality. In the present study, we introgressed two major quantitative trait loci (QTLs), namely, qDTY2.1 and qDTY3.1, governing RSDS tolerance in a popular high yielding non-aromatic rice cultivar, Pusa 44, through marker-assisted backcross breeding (MABB). Pusa 44 is highly sensitive to RSDS, which restricts its cultivation across drought-prone environments. Foreground selection was carried out using markers, RM520 for qDTY3.1 and RM 521 for qDTY2.1. Background selection was achieved with 97 polymorphic SSR markers in tandem with phenotypic selection to achieve faster recurrent parent genome (RPG) recovery. Three successive backcrosses followed by three selfings aided RPG recoveries of 98.6% to 99.4% among 31 near isogenic lines (NILs). Fourteen NILs were found to be significantly superior in yield and grain quality under RSDS with higher drought tolerance efficiency (DTE) than Pusa 44. Among these, the evaluation of two promising NILs in the multilocational trial during Kharif 2019 showed that they were significantly superior to Pusa 44 under reproductive stage drought stress, while performing on par with Pusa 44 under normal irrigated conditions. These di-QTL pyramided drought-tolerant NILs are in the final stages of testing the All India Coordinated Rice Improvement Project varietal trials for cultivar release. Alternately, the elite drought-tolerant Pusa 44 NILs will serve as an invaluable source of drought tolerance in rice improvement.

scholarly journals GRAIN QUALITY AND DROUGHT TOLERANCE OF THE WINTER SOFT WHEAT VARIETIES

2018 ◽  
Vol 55 (1) ◽  
pp. 52-56 ◽  
Author(s):  
N.S. Kravchenko ◽  
◽  
V.А. Likhovidova ◽  
О.V. Skripka ◽  
◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Grain Quality ◽  
Soft Wheat ◽  
Wheat Varieties

scholarly journals RESISTANCE TO ABIOTIC FACTORS OF ENVIRONMENT AND QUALITATIVE TRAITS OF WINTER SOFT WHEAT VARIETIES

2018 ◽  
pp. 54-59 ◽  
Author(s):  
E. V. Ionova ◽  
N. S. Kravchenko ◽  
V. L. Gaze ◽  
D. M. Marchenko
Keyword(s):  
Drought Tolerance ◽  
Plant Growth ◽  
Grain Quality ◽  
Abiotic Factors ◽  
Soft Wheat ◽  
Wheat Varieties ◽  
Local Conditions ◽  
High Productivity ◽  
Study Results

One of the factors to improve grain quality of winter wheat is to develop and introduce new varieties of high productivity, good grain quality adapted to the local conditions. The article presents the study results of traits of grain quality and drought tolerance of winter soft wheat varieties in the initial periods of plant growth. It has been determined that all studied varieties are characterized with large grain unit. According to mass share of protein the analyzed samples belong to the 2-d and 3-d quality grades. The variety ‘Zhavoronok’ showed the maximum mass share of protein in kernels (14%). On gluten content in kernels the varieties ‘Asket’ (24.6%, ‘Volnitsa’ (24.5%) and ‘Zhavoronok’ (24.3%) formed the grain with good indexes of the trait. The estimation of heat resistance degree in the initial periods of plant growth identified that the indexes ranged from 80.6% to 96.9%, and drought tolerance ranged from 37.1 (the variety ‘Donskoy Mayak’) to 82.3% (the variety ‘Krasa Dona’). The varieties ‘Krasa Dona’ (254.2 r. u.), ‘Ermak’ (253.5 r. u.), ‘Asket’ (251.0 r. u.) and ‘Volnitsa’ (240.6 r. u.) demonstrated high indexes of complex resistance (ICR). The largest yields of grain on average through the years of study were produced by the varieties ‘Krasa Dona’ (8.4 t/ha), ‘Kaprizulya’ (8.3 t/ha), ‘Lilit’ (8.2 t/ha), ‘Zhavoronok’(8.1 t/ha), ‘Polina’(8.1 t/ha) and ‘Volny Don’(8.0 t/ha). Due to the conducted study the new genotypes ‘Volnitsa’, ‘Zhavoronok’ and ‘Krasa Dona’ have been identified which produced high yields and quality of grain and possess high resistance to overheat and dehydration of fibers that allows using them in the breeding process as the sources of useful traits and properties.

scholarly journals Buckwheat selection for resistance to extreme environmental factors

2020 ◽  
Vol 27 ◽  
pp. 55-60
Author(s):  
L. A. Vilchynska ◽  
O. P. Horodyska ◽  
M. V. Diyanchuk
Keyword(s):  
Drought Tolerance ◽  
Quality Indicators ◽  
Grain Quality ◽  
Vegetation Period ◽  
Source Material ◽  
High Yield ◽  
Breeding Programs ◽  
Material Evaluation ◽  
Field Assessment ◽  
Economically Valuable Traits

Aim. Based on the usage of samples from the buckwheat genus collection, create and evaluate new source material for drought tolerance, productivity, and quality indicators. Methods. Testing, material evaluation, analysis of plants, yield and grain quality were carried out in accordance with the generally accepted methods of the State variety testing. Results. A laboratory and field assessment of the initial parental forms selected from the collection of the buckwheat genus, involved in hybridization and hybrid combinations based on them based on drought tolerance in the conditions of Podilskyi State Agrarian and Engineering University during 2006–2019 was carried out. It was revealed that the donors for creating new source material on the basis of drought tolerance are the varieties Skorostyhla 86, Smuglianka, Kazanka, Alyonushka, and Veselka. Buckwheat numbers 7/07, 8/07, 2/07, 24/06 have a vegetation period shorter by 5–12 days, drought tolerance 35,4–47,3 % higher, 0,3–0,7 t higher / ha grain yield and high quality indicators compared with the standard Victoria variety. Conclusions. Selected samples with economically valuable traits (7/06, 4/07, 23/06, 5/07, 6/07, 16/07, 15/07, 25/06, 24/06, 22/06) use in breeding programs to create more drought-resistant buckwheat varieties with high yield and grain quality. Keywords: buckwheat, selection, drought tolerance, express method, productivity and quality indicators.

Topical issues of grain quality

2018 ◽  
pp. 42-44
Author(s):  
E.P. Meleshkina ◽  
Keyword(s):  
Grain Quality

Productivity of corn hybrids of different fao groups depending on microfertilizers and growth stimulants under irrigation in the south of Ukraine

2016 ◽  
Vol 3 (1) ◽  
pp. 55-60
Author(s):  
Yu. Lavrynenko ◽  
R. Vozhegova ◽  
O. Hozh
Keyword(s):  
Grain Quality ◽  
Laboratory Method ◽  
The South ◽  
Corn Hybrids ◽  
Early Maturity ◽  
Effi Ciency ◽  
Grain Moisture ◽  
Grain Productivity ◽  
The Impact

The purpose of the research is to identify effi cient microfertilizers and growth stimulants considering biologi- cal features of new corn hybrids of different FAO groups under irrigation conditions in the South of Ukraine and trace their impact on grain productivity of the plants. The methods of the research are the fi eld method – to study the interaction of the research object with experimental factors of the natural environment, to register the yield and evaluate the biometrical indices; the laboratory method – to measure soil moisture, grain moisture content and grain quality indices; the statistical method – to evaluate the reliability of the obtained results; the calculation methods – for economic and energetic assessment of the growing techniques used. The results of the research. The paper defi nes the impact of microfertilizers and growth stimulants on the yield and grain quality of the corn hybrids of different maturity groups and on the economic effi ciency of growing them. The conclusions of the research. Under irrigation conditions of the Southern Steppe of Ukraine it is recommended that the following hybrids should be grown in dark-chestnut soils: early maturity DN Pyvykha, medium-early Skadovskyi, medium maturity Kakhovskyi and medium-late Arabat, using the growth stimulants – treating the seeds with Sezam-Nano and fertilizing with Grainactive at the stage of 7–8 leaves.

Impact of water availability on winter wheat ( Triticum aestivum L.) yield characteristics

2010 ◽  
Vol 59 (1) ◽  
pp. 151-156 ◽  
Author(s):  
H. Klupács ◽  
Á. Tarnawa ◽  
I. Balla ◽  
M. Jolánkai
Keyword(s):  
Winter Wheat ◽  
Water Supply ◽  
Water Availability ◽  
Grain Quality ◽  
Physiological Condition ◽  
Triticum Aestivum L ◽  
Annual Precipitation ◽  
Average Depth ◽  
Experimental Site ◽  
Yield Quality

Water supply of crop plants is the most essential physiological condition influencing quality and quantity performance of grain yield. In a 12-year experimental series of winter wheat agronomic trials run at the Nagygombos experimental site (Hungary) the effect of water availability has been studied. The location represents the typical average lowland conditions of the country, the annual precipitation of the experimental site belonging to the 550–600 mm belt of the Northern edges of the Great Hungarian Plain, while the average depth of groundwater varies between 2 to 3 metres. Crop years with various precipitation patterns have had different impacts on crop yield quality and quantity. Yield figures were in positive correlation with annual precipitation in general. Water availability had diverse influence on quality manifestation. Good water supply has often resulted in poorer grain quality, especially wet gluten and Hagberg values have been affected by that. Drought reduced the amount of yield in general, but contributed to a better quality manifestation in some of the crop years.

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