scholarly journals Yield and seed structure of the spring wheat

2020 ◽  
Vol 10 (5) ◽  
pp. 274-277
Author(s):  
V.I. Belyaev ◽  
L.V. Sokolova ◽  
A.V. Matsyura
Keyword(s):  
Spring Wheat ◽  
Maximum Yield ◽  
Experimental Studies ◽  
Limiting Factor ◽  
Seed Structure ◽  
Potential Yield ◽  
Air Stream ◽  
Air Speed ◽  
1000 Grain Weight ◽  
Wheat Seeds

We presented analysis of the influence of spring wheat seeds sowing qualities on the yield. Experimental studies were carried out in 2010-2017 in Altai Krai. The seed divided into fractions in the air stream differs significantly in its characteristics. The ratio of fractions significantly depends on the conditions of the year and has a significant impact on the formation of the potential yield of spring wheat. Seeds isolated at an air speed of 8 m/s are a highly significant limiting factor in achieving the maximum yield of spring wheat. An increase in their share for every 10% in the seed can lead to a yield shortfall of up to 5.5 c/ha. Sowing should be carried out with the most complete seed fractions, with a 1000 grain weight of 31.8-38.0 g, obtained at an air flow rate of 9 m/s. Their share in the seed used by the farms of the region is 34.8 - 52.7%.

Genotype × management strategies to stabilise the flowering time of wheat in the south-eastern Australian wheatbelt

2018 ◽  
Vol 69 (6) ◽  
pp. 547 ◽  
Author(s):  
B. M. Flohr ◽  
J. R. Hunt ◽  
J. A. Kirkegaard ◽  
J. R. Evans ◽  
J. M. Lilley
Keyword(s):  
Flowering Time ◽  
Spring Wheat ◽  
Maximum Yield ◽  
Farm Size ◽  
Potential Yield ◽  
Critical Determinant ◽  
Sowing Depth ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

Growers in the wheatbelt of south-eastern Australia need increases in water-limited potential yield (PYw) in order to remain competitive in a changing climate and with declining terms of trade. In drought-prone regions, flowering time is a critical determinant of yield for wheat (Triticum aestivum L.). Flowering time is a function of the interaction between management (M, establishment date), genotype (G, development rate) and prevailing seasonal conditions. Faced with increasing farm size and declining autumn rainfall, growers are now sowing current fast-developing spring wheat cultivars too early. In order to widen the sowing window and ensure optimum flowering dates for maximum yield, new G × M strategies need to be identified and implemented. This study examined the effect of manipulating genotype (winter vs spring wheat and long vs short coleoptile) and management (sowing date, fallow length and sowing depth) interventions on yield and flowering date in high-, medium- and low-rainfall zones in south-eastern Australia. Twelve strategies were simulated at nine sites over the period 1990–2016. At all sites, the highest yielding strategies involved winter wheats with long coleoptiles established on stored subsoil moisture from the previous rotation, and achieved a mean yield increase of 1200 kg/ha or 42% relative to the baseline strategy. The results show promise for winter wheats with long coleoptiles to widen the sowing window, remove the reliance on autumn rainfall for early establishment and thus stabilise flowering and maximise yield. This study predicts that G × M strategies that stabilise flowering may increase PYw.

Soil Allelotoxicity and Creation of Sorption-Stimulating Preparation to Accelerate Plant Development from Spring Wheat Seeds at Early Stages

2020 ◽  
Vol 53 (9) ◽  
pp. 1302-1310
Author(s):  
G. N. Fedotov ◽  
I. V. Gorepekin ◽  
L. V. Lysak ◽  
D. I. Potapov
Keyword(s):  
Spring Wheat ◽  
Plant Development ◽  
Early Stages ◽  
Wheat Seeds

scholarly journals Yield and sowing quality of spring wheat seeds depending on the treatment of crops with fungicides

2020 ◽  
Vol 24 (1) ◽  
pp. 176-180
Author(s):  
S. Liskovskiy ◽  
◽  
O. Demydov ◽  
A. Siroshtan ◽  
O. Zaiima ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Wheat Seeds

scholarly journals Impact of foliar fertilizing on the white mustard productivity in the northeastern Forest-Steppe of Ukaraine

2019 ◽  
pp. 24-28
Author(s):  
A.V. Melnyk ◽  
S.V. Zherdetska ◽  
Shahid Ali ◽  
Gulam Shabir ◽  
S.O. Butenko
Keyword(s):  
Maximum Yield ◽  
Experimental Studies ◽  
Weather Conditions ◽  
Black Soil ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
White Mustard ◽  
Production Complex ◽  
Cultivation Technology ◽  
Training Research

The experimental studies were carried out on the fields of the Sumy NAU Training Research and Production Complex (TRPC) during 2016–2018.The soil of the experimental plot is typical deep-medium humus, large-dusty and medium-loam black soil on forest trees. The subject of the research was a white mustard variety of Oslava created at the Institute of Feed and Agriculture of the Podillya NAASU, entered in the Register of varieties suitable for cultivation in Ukraine in 2010. The aim of the research is to optimize the nutrition of the white mustard variety of Oslava through the complex application of mineral fertilizers and foliar fertilization under the conditions of the northeastern forest-steppe of Ukraine. The analysis of weather conditions, in particular the hydrothermal coefficient of Selyaninov (HTC), established that 2016 season was wet (HTC = 1.60), 2017 and 2018 were dry (HTC = 0.59 and 0.46). During the research, the cultivation technology was generally accepted in the experimental area, except for the elements studied. The results of the three-year study on the influence of foliar fertilizing under different mineral nutrition backgrounds on the yield of the white mustard variety Oslava are presented. It was found that the application of mineral fertilizers and complex fertilizers for the foliar feeding had a positive effect on the morphometric parameters of the white mustard, in particular, increased the plant height and the number of branches of the first order. The use of mineral fertilizers at the rate of N30P30K30 provided an increase in the yield by 0.34 t/ha, N60P60K60 – by 0.55 t/ha, N90P90K90 – by 0.61 t/ha on an average compared to the control. Therefore, for the maximum yield (2.14–2.21 t/ha) with a mass of 1000 seeds (5.39–5.54 g) of the white mustard under the conditions of the Northeastern Forest-Steppe of Ukraine, foliar fertilizing of Vuxal boron (3.0 l/ha) + Vuxal bioaminoplant 3.0 l/ha) and Spectrum B + Mo (2.0 l/ha) + Spectrum Ascorist (3.0 l/ha) should be applied on the background of N60-90P60-90K60-90, what provided an increase in the yield compared to the control of 0.58-0.65 t/ha.

scholarly journals ECONOMIC EFFICIENCY OF FIELD CROP ROTATION IN OPTIMIZATION OF OF SOWING AREAS STRUCTURE

2018 ◽  
Vol 12 (4) ◽  
pp. 45-49
Author(s):  
Валерий Чибис ◽  
Valeriy Chibis ◽  
Светлана Чибис ◽  
Svetlana Chibis ◽  
Илья Кутышев ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Spring Wheat ◽  
Western Siberia ◽  
Field Experiments ◽  
Humus Content ◽  
Maximum Yield ◽  
Crop Rotations ◽  
Forest Steppe ◽  
Field Crop ◽  
Oil Crops

In a long-term places, located on the experimental fields of Siberian Research Institute of Agriculture (Omsk), the schemes of field crop rotations were modernized by introducing oil crops (rapeseed, soybean) into rotation and replacing the repeated wheat crops with barley and oats. Accounting of grain crops productivity and accompanying observations were carried out in three field rotations of different lengths of rotation (four- and five-field) and on permanent sowing. The repetition of the experiments is fourfold. The system of agrotechnical measures recommended for the zone of the forest-steppe of Western Siberia was applied. The study of predecessors in the cultivation of crops for various purposes was carried out in field experiments using conventional methods. The humus content for rotation in the soil layer of 0-40 cm increased by 0.19% in the crop rotation “rapeseed - wheat spring wheat - barley - soybean - spring wheat”. The largest accumulation of humus (0.83%) was in the rotation “soybean - spring wheat - barley – oats”. During the years of research wheat productivity varied from 0.82 to 2.22 tons per hectare. Wheat was the first crop in all its predecessors to form grains, on average, by 0.3-0.5 tons per hectare, than the second crop. The yield of soybeans in the crop rotation was 1.23-1.78 tons per hectare. The productivity of rapeseed was low, its productivity over the years was 1.31 tons per hectare. Grain-fodder crops (barley, oats) averaged 0.4-0.6 tons per hectare, higher than the spring wheat productivity in the alternating rotation. The maximum yield of grain from a hectare of arable land was noted in the crop-steam rotation and amounted to 1.7 tons. An increase in the yield of feed-protein units was observed in crop rotations saturated with oil crops (rapeseed and soybean) and amounted to 3.4-4.0 tons per hectare. The economic calculation showed that the cultivation of field crops in the rotational crop rotation of “soybean - wheat - barley – oats” increased profitability by 44%, net income - by half, in comparison with the control variant. The obtained materials can be used to develop schemes of field crop rotations for the zone of the forest-steppe of Western Siberia.

scholarly journals Performance of Wheat as Affected by Different Irrigation Levels and Sowing Dates

2017 ◽  
Vol 14 (2) ◽  
pp. 77-85
Author(s):  
Md Sohel Mahmud ◽  
Md Jafar Ullah ◽  
Md Abdullahil Baque ◽  
Lutfun Naher ◽  
Sayed Mohammad Mohsin
Keyword(s):  
Grain Yield ◽  
Maximum Yield ◽  
Growth And Yield ◽  
Sowing Time ◽  
Sowing Dates ◽  
Two Factors ◽  
Main Plot ◽  
Irrigation Levels ◽  
1000 Grain Weight ◽  
Plot Design

The experiment was conducted to determine the effect of irrigations and sowing dates on growth and yield performance of wheat in the experimental field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period of November 18, 2012 to March 30, 2013. The experiment was comprised of two factors, viz. factor A: two irrigations namely irrigation (I) and no irrigation i.e. control (I0), and factor B: three sowing dates such as S1: 1st sowing on 18 November, S2: 2nd sowing on 03 December and S3: 3rd sowing on 18 December. The experiment was laid out in a split plot design with three replications. Irrigation was assigned in the main plot, while sowing time was in the sub-plots. Data on grain yield and different yield contributing characters were taken after harvest. Results indicated that the highest grain yield was obtained with I (2.915 t ha-1) and S1 (2.983 t ha-1). The interaction of irrigation (I) and sowing on 18 November (S1) showed the maximum yield (3.387t ha-1), spike length (17.08 cm), 1000 grain weight (43.4 g), spikelets spike-1 (20.03) and grain spike-1 (65.58) of wheat.The Agriculturists 2016; 14(2) 77-85

scholarly journals Host-pathogen interaction between spring wheat and Septoria nodorum with reference to resistance breeding

1985 ◽  
Vol 57 (1) ◽  
pp. 1-66
Author(s):  
Reijo Karjalainen
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Wheat Breeding ◽  
Grain Weight ◽  
Septoria Nodorum ◽  
Spore Concentration ◽  
Screening Techniques ◽  
Host Pathogen Interaction ◽  
Host Pathogen ◽  
1000 Grain Weight

Host-pathogen interaction between spring wheat and Septoria nodorum Berk. with applications for wheat breeding were studied. Ultrastructure of interactions was studied using electron microscopic techniques. Following inoculation, conidia of S. nodorum germinate, form appressoria anda penetration peg which directly penetrates through the cell walls. It is suggested that most penetration attempts fail because of cellular defence reactions, formation of papillae and cell wall alterations. Inoculation with low spore concentration reduced grain yield of Hankkija’s Taava cultivar by 10 % and 1000-grain weight by 14 %. Inoculation with high spore concentration on large plots of Tähti cultivar reduced grain yield by 32 % and 1000-grain weight by 18 %. Inoculation with high spore concentration on normal breeding plots of Tähti cultivar reduced grain yield by 35 % and 1000-grain weight by 21 % and the grain yield of Kadett cultivar by 27 % and 1000-grain weight by 20 %. Inheritance studies on F2 progenies of spring wheat crosses involving susceptible and moderately or highly resistant parents suggest that heredity component of symptom expression is moderate level and breeding success depends mainly on efficient screening techniques. Resistance was associated with tallness in crosses, and cultivar trials suggest that resistance is positively associated with late maturation time. Field screening techniques based on small plots and artificial inoculation showed that the most resistant entries were wild Triticum species and late and tall cultivars. Seedling plant tests based on attached seedling leaves and detached leaves revealed easily the most resistant and most susceptible cultivars. The overall correlation between seedling tests and field tests was quite high. The results are discussed in relation to wheat breeding strategies for resistance to S. nodorum.

Influence of a growth stimulator on the sowing traits of wheat

2021 ◽  
pp. 66-71
Author(s):  
R. A. Maksimova ◽  
E. M. Ermolova
Keyword(s):  
Spring Wheat ◽  
Growth Regulator ◽  
Leaf Surface ◽  
Vegetation Period ◽  
Stress Factors ◽  
Growth Stimulator ◽  
Phytotoxic Effect ◽  
Leaf Surface Area ◽  
Wheat Seeds

Wheat is the main and most important food crop in most countries of the world. It is cultivated in more than 80 countries. The purpose of the work was to study the effect of the growth stimulator Agrostimulin on the sowing traits of wheat seeds. The growth regulator Agrostimulin promotes accelerated division of plant cells, the development of a more powerful root system, an increase in the leaf surface area and chlorophyll content, reduces the phytotoxic effect of pesticides, has an antimutagenic effect, improves the quality of grown products, increases productivity, plant resistance to diseases, stress factors, resistance to adverse environmental factors (hypothermia, overheating, lack or excess of light and moisture). Its use makes it possible to reduce the rates of application of pesticides when using the drug 3–5 times during the vegetation period. The use of the growth stimulator Agrostimulin in the cultivation of spring wheat Omskaya 36 has been reflected in the article. Studies on the sowing traits of spring wheat seeds, phenological observations have been carried out. The yield of wheat Omskaya 36 variety with the use of the growth regulator Agrostimulin was 20 c/ha, which was by 2,1 c/ha or 11,7 % higher compared to the previous year. It has been revealed that the length of the vegetation period in wheat treated with the growth regulator Agrostimulin was 89 days, which was by 7 days less compared to the control. Thus, it has been experimentally proved that the treatment of spring wheat seeds Omskaya 36 with the growth regulator Agrostimulin shortens the growing season and increases its yield.

scholarly journals Performance of Hybrid Rice (Bio-453) In Variation of Spacing and Number of Seedling Per Hill

2020 ◽  
Vol 22 (1) ◽  
pp. 27-37
Author(s):  
D Chowdhury ◽  
M Biswas ◽  
MNH Miah ◽  
P Mandal ◽  
MS Hossain
Keyword(s):  
Hybrid Rice ◽  
Research Work ◽  
Maximum Yield ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Rice Line ◽  
Biological Yield ◽  
Main Plot ◽  
1000 Grain Weight ◽  
Plot Design

Hybrid rice production can ensure to get more yields per unit land. The research work was carried out to evaluate the effect of number of seedling hill-1 and spacing on the growth and yield of hybrid rice line Bio-453. The experiment was laid out in a split-plot design with 3 replications at the field of Agronomy and Haor Agriculture Department of Sylhet Agricultural University, under the AEZ 20 in Kharif-II (Aman) season of 2013. Number of seedling hill-1 was assigned in the main plot and plant spacing in the sub-plot. Two levels of seedling hill-1 viz. NS1 (1 seedling hill-1) and NS2 (2 seedlings hill-1) and five levels of plant spacing viz. Sp1 (15 cm  X 15 cm), Sp2 (15 cm X 20 cm) and Sp3 (20 cm X 20 cm), Sp4 (20 cm X 25 cm) and Sp5 (20 cm X 30 cm) were the treatments. Number of seedling hill-1 and plant spacing showed significant effect in yield and yield contributing parameters except days to maturity, plant height, 1000-grain weight, total tillers hill-1, number of effective tillers hill-1, harvest index and grains panicle-1. Maximum grain yield (9.43 t ha-1), straw yield (16.27 t ha-1) and biological yield (25.70 t ha-1) were obtained from 1 seedling hill-1 (NS1) with the closest spacing 15 cm X 15 cm Therefore,  one seedling hill-1 with 15 cm distance for plant and row to row distance could  ensure maximum yield of hybrid rice line Bio-453. Bangladesh Agron. J. 2019, 22(1): 27-37

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