scholarly journals Formation of photosynthetic parameters of winter wheat crops under foliar fertilization and herbicide application

2021 ◽  
Author(s):  
M. O. Cherniak
Keyword(s):  
Winter Wheat ◽  
Dry Matter ◽  
Leaf Surface ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Dry Matter Accumulation ◽  
Foliar Fertilization ◽  
Net Productivity ◽  
Stress Agent ◽  
Photosynthetic Potential

Purpose. To study agronomic measures for the care of winter wheat: the use of foliar fertilization and protection against weeds with sulfonylureas. Methods. Field and laboratory. Results. It was investigated that the application of Bioforge anti-stress fertilizer did not significantly affect the growth of photosynthetic potential of crops, as the leaf surface area was not significantly different. In addition to the area of the photosynthetic leaf surface, there is a more accurate indicator, that is net productivity of photosynthesis, which can, in our opinion, more accurately show whether the effects of plant protection products against weeds lead to changes in physiological processes in the plant. the mechanism of action of the anti-stress agent is somewhat different. After all, the organization of the photosynthetic apparatus of plants can be such that for a relatively small area of leaves you can get better rates of dry matter accumulation. The best indicators of photosynthetic potential for the use of plant protection products in autumn were identified with the use of such products as Granstar Pro 75, WG, Logran 75, WG, Harmony 75, WG, for introduction into the phenophase BBCH 10–13, and in spring for use in BBCH 27–29 in combination with Bioforge and separately. However, the introduction of PIC 75, WG, to form the best photosynthetic potential of winter wheat crops should be carried out in the phase of BBCH 7–9 in autumn or spring in BBCH 25–26. We also investigated that the use of Bioforge anti-stress fertilizer did not significantly affect the growth of photosynthetic potential of crops. Conclusions. It was determined that the use of the anti-stress agent Bioforge had a positive effect on the condition of plants and their accumulation of dry matter. Accordingly, the best indicators of net productivity of wheat photosynthesis were obtained with the use in autumn of such products as Granstar Pro 75, WG, Logran 75, WG, Harmony 75, WG, for introduction into the phenophase BBCH 10–13, and spring for use in BBCH 27–29 in combination with Bioforge. However, the introduction of PIC 75, WG, to form the best photosynthetic potential of winter wheat crops should be carried out in the phase of BBCH 7–9 in autumn or spring in BBCH 25–26 in combination with Bioforge.

scholarly journals Photosynthetic activity of white lupine plants depending on growing technology and hydrothermal conditions

1970 ◽  
pp. 134-142
Author(s):  
A.V. Holodna ◽  
O.O. Stolyar ◽  
H.H. Remez
Keyword(s):  
Plant Growth ◽  
Dry Matter ◽  
Photosynthetic Activity ◽  
Leaf Surface ◽  
Growing Season ◽  
Dry Matter Accumulation ◽  
Biological Origin ◽  
Foliar Fertilization ◽  
Growth Stimulator ◽  
White Lupine

Purpose. Intensification of photosynthetic activity of white lupine plants in order to increase the grain yield by applying a fungicide, growth stimulator of plants of biological origin and foliar fertilization of crops with micronutrients in the critical periods of the growing season. Methods. Field (to study the interaction of the object of study with biotic and abiotic factors); morphophysiological (for biological control over the development of productivity elements by stages of organogenesis); weight (to establish the parameters of the crop structure elements and determine the yield of grain); statistical (statistical processing of the research results). Results. The results of the research on the influence of biological preparations, in particular fungicide and plant growth stimulator, as well as foliar feeding with microfertilizers in chelated form in different stages of organogenesis, on leaf surface formation and dry matter accumulation by the Chabansky variety white lupine plants are presented. Correlations have been established between the level of those indicators and the average daily air temperatures and the amount of precipitation during the growing season. Conclusions. To maximize the genetic potential of the Chaban lupine variety, the technology of its cultivation should include sowing seeds treated with bioinoculant in combination with a bioprotector, application of a biostimulator of plant growth and development and foliar fertilization of plants with microfertilizer at the second stage of organogenesis. Formation of the leaf surface of white lupine plants and their accumulation of dry matter are significantly influenced by weather conditions during April-July.

Dry Matter Accumulation in Soft Red Winter Wheat Seeds 1

Crop Science ◽  
1982 ◽  
Vol 22 (2) ◽  
pp. 290-294 ◽  
Author(s):  
Thomas L. Housley ◽  
Allen W. Kirleis ◽  
Herb W. Ohm ◽  
Fred L. Patterson
Keyword(s):  
Winter Wheat ◽  
Dry Matter ◽  
Dry Matter Accumulation ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat ◽  
Wheat Seeds

scholarly journals Physiological and developmental traits associated with the grain yield of winter wheat as affected by phosphorus fertilizer management

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Xiu-Xiu Chen ◽  
Wei Zhang ◽  
Xiao-Yuan Liang ◽  
Yu-Min Liu ◽  
Shi-Jie Xu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Dry Matter ◽  
Photosynthetic Capacity ◽  
Growth Stages ◽  
Photosynthetic Parameters ◽  
Dry Matter Accumulation ◽  
Grain Yields ◽  
P Concentration ◽  
Spike Number

Abstract Although researchers have determined that attaining high grain yields of winter wheat depends on the spike number and the shoot biomass, a quantitative understanding of how phosphorus (P) nutrition affects spike formation, leaf expansion and photosynthesis is still lacking. A 3-year field experiment with wheat with six P application rates (0, 25, 50, 100, 200, and 400 kg P ha−1) was conducted to investigate this issue. Stem development and mortality, photosynthetic parameters, dry matter accumulation, and P concentration in whole shoots and in single tillers were studied at key growth stages for this purpose. The results indicated that spike number contributed the most to grain yield of all the yield components in a high-yielding (>8 t/ha) winter wheat system. The main stem (MS) contributed 79% to the spike number and tiller 1 (T1) contributed 21%. The 2.7 g kg−1 tiller P concentration associated with 15 mg kg−1 soil Olsen-P at anthesis stage led to the maximal rate of productive T1s (64%). The critical shoot P concentration that resulted in an adequate product of Pn and LAI was identified as 2.1 g kg−1. The thresholds of shoot P concentration that led to the maximum productive ability of T1 and optimal canopy photosynthetic capacity at anthesis were very similar. In conclusion, the thresholds of soil available P and shoot P concentration in whole plants and in single organs (individual tillers) were established for optimal spike formation, canopy photosynthetic capacity, and dry matter accumulation. These thresholds could be useful in achieving high grain yields while avoiding excessive P fertilization.

Analysis of the effect of n fertilisation on the growth dynamics of winter wheat varieties using the hunt-parsons model

2011 ◽  
Vol 59 (1) ◽  
pp. 35-45
Author(s):  
E. Sugár ◽  
Z. Berzsenyi
Keyword(s):  
Winter Wheat ◽  
Leaf Area ◽  
Dry Matter ◽  
Growth Parameters ◽  
Growth Dynamics ◽  
Dry Matter Accumulation ◽  
Wheat Varieties ◽  
Mean Values ◽  
N Treatment ◽  
Winter Wheat Varieties

The effect of nitrogen (N) fertilisation on the growth of winter wheat varieties was examined in three diverse years using the functional method of growth analysis. The main plot in the two-factorial, split-plot experiment was the N treatment and the subplot the variety. The wheat varieties Mv Toborzó (extra-early), Mv Palotás (early) and Mv Verbunkos (mid-early) were treated with N rates of 0, 80, 160 and 240 kg N ha−1 (N0, N80, N160, N240). The Hunt-Parsons (HP) program fitted a third-degree exponential function to the dry matter and leaf area data. In 2007 and 2008 dry matter accumulation continued up to the N240 rate and in 2009 to the N160 rate. In all three years the highest value was recorded for Mv Verbunkos (4.62 g plant−1 in 2007, 4.63 g in 2008 and 4.51 g in 2009). The highest value of maximum leaf area (237.5 cm2) was found for Mv Verbunkos in the N240 treatment. The maximum values of leaf area in each N treatment, averaged over years and varieties (cm2 plant−1), were as follows: N0: 86.2; N80: 141.0; N160: 164.0; N240: 173.1. The parameter AGRmean exhibited the highest value (8.04 g day−1 102) in the N160 treatment, while among the varieties Mv Verbunkos had the highest mean value (7.18 g day−1 102). The highest value of RGRmean was achieved by Mv Toborzó in the N160 treatment in 2009 (3.94 g g−1 day−1 102). The value of NARmean increased up to fertiliser rates of N160 and N240, with mean values (g m−1 day−1) of N0: 2.35, N80: 2.44, N160: 2.53 and N240: 2.47. The highest value of NAR (3.29 g m−1 day−1) was obtained for Mv Palotás in the N160 treatment in 2008. On average the greatest value of LARmax was recorded in the N160 treatment (172.8 cm2 g−1), while the highest absolute value (213.6 cm2 g−1) was achieved by Mv Toborzó in 2008. The unfavourable effect of the drought in 2007 was clearly reflected in the values of the growth parameters.

scholarly journals Remote sensing of total dry-matter accumulation in winter wheat

1981 ◽  
Vol 11 ◽  
pp. 171-189 ◽  
Author(s):  
Compton J. Tucker ◽  
Brent N. Holben ◽  
James H. Elgin ◽  
James E. McMurtrey
Keyword(s):  
Remote Sensing ◽  
Winter Wheat ◽  
Dry Matter ◽  
Dry Matter Accumulation

scholarly journals ЭФФЕКТИВНОСТЬ НЕКОРНЕВОЙ ПОДКОРМКИ МИКРОЭЛЕМЕНТНЫМИ УДОБРЕНИЯМИ НА УРОЖАЙНОСТЬ И КАЧЕСТВО ЗЕРНА ЯРОВОЙ ТРИТИКАЛЕ

2020 ◽  
Author(s):  
A.N. Kshnikatkina ◽  
A.N. Dolzhenko
Keyword(s):  
Grain Yield ◽  
Grain Quality ◽  
Leaf Surface ◽  
Technological Properties ◽  
Net Productivity ◽  
Maximum Value ◽  
Spring Triticale ◽  
Photosynthetic Potential ◽  
Grain Unit

Представлены результаты исследований по влиянию микроэлементных удобрений на формирование урожайности и качество зерна яровой тритикале сорта Укро. Установлено, что микроэлементные удобрения Азосол 36 Экстра, Мегамикс-Азот, Мегамикс-Профи, Цитовит и НаноКремний обеспечили увеличение параметров фотосинтеза агроценозов яровой тритикале. Максимальное значение листовой поверхности 42,5 тыс. м2/га, фотосинтетического потенциала 1,03 млн. м2 дн./га, чистой продуктивности фотосинтеза 6,29 г/м2 в сутки отмечены при двукратной фолиарной подкормке в фазы кущения и колошения препаратом Азосол 36 Экстра. Вследствие применения некорневой подкормки растений микроэлементными удобрениями в хелатной форме наблюдалось повышение урожайности яровой тритикале сорта Укро в совокупности с улучшением технологических свойств зерна. По вариантам опыта, в среднем за три года, урожайность зерна была 3,84-4,43 т/га. Прибавка по отношению к контролю колебалась в пределах 0,42-1,27 т/га (13,3-40,3). Наибольшая урожайность высококачественного зерна 4,43 т/га получена при двукратной подкормке в фазы кущения и колошения препаратом Азосол 36 Экстра, прибавка урожая зерна 1,27 т/га (40,3), натура зерна 796 г/л, стекловидность 63, сырая клейковина 26,2, белка 15,1.The results of studies on the influence of microelement fertilizers on the formation of productivity and grain quality of spring triticale of the Ukro variety are presented. It was found that microelement fertilizers Azosol 36 Extra, Megamix-Azot, Megamix-Profi, Tsitovit and NanoKremny provided an increase in the parameters of photosynthesis of agrocenoses of spring triticale.The maximum value of the leaf surface of 42.5 thousand m2/ha, the photosynthetic potential of 1.03 million m2 d/ ha, the net productivity of photosynthesis of 6.29 g/m2 per day were noted with double foliar dressing during the tillering and heading phases with Azosol 36 Extra. Due to the application of foliar dressing with microelement fertilizers in chelated form, an increase in the yield of spring triticale of the Ukro variety was observed, together with an improvement in the technological properties of grain. According to the experimental variants, on average for three years, the grain yield was 3.84-4.43 t/ha. The increase in relation to the control ranged from 0.42-1.27 t/ha (13.3-40.3). The highest yield of high-quality grain of 4.43 t/ha was obtained by double top dressing at the tillering and heading phases with the use of Azosol 36 Extra an increase in grain yield was 1.27 t/ha (40.3), grain unit - 796 g/l, glassiness - 63, raw gluten - 26.2, protein - 15.1.

scholarly journals Efficiency of joint application of microfertilizers and plant protection products on bread winter wheat crops

2016 ◽  
Vol 3 (0) ◽  
Author(s):  
Д. Ю. Дубовик ◽  
А. А. Сіроштан ◽  
Л. І. Ільченко ◽  
Б. А. Олефіренко
Keyword(s):  
Winter Wheat ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Joint Application
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