scholarly journals Formation of white lupine productivity depending on the fertilization and pre-sowing seed treatment

Author(s):  
A. V. Holodna

Purpose. Intensification of generative development of white lupine plants in order to increase the rate of crop yield using the inoculant, fungicide and plant growth stimulator of biological origin and foliar nutrition with microfertilizer in the optimum time. Methods. Field (to study the interaction of the object of research with biotic and abiotic factors); morphophysiological (for biological control of the development of productivity elements in the stages of organogenesis); weighing (to set parameters of indices of the yield structure elements and determine grain yield); statistical (statistical processing of research results).Results. The article presents the results of research on the influence of bio-agents, in particular inoculant, fungicide and plant growth stimulator as well as foliar nutrition with microfertilizer in chelate form in various stages of organogenesis on the generative development of white lupine plants of «Chabanskyi» variety with an intermediate type of stem branching, formation of the elements of productivity and plant productivity. The optimal time period for foliar nutrition of plants is identified. It is established that the formation of the maximum mass of grain by plants in the experiment (13 g) requires the technology of white lupine growing that involves application of N30P45K90, planting of seeds treated with bio-inoculant BTU-r and bio-fungicide MikoHelp at a wide row spacing and seeding rate of 1.0 million seeds per hectare, spraying of plants in the branching phase with plant growth stimulator ‘Ratchet’ and foliar nutrition with micro-fertilizer Trazeks in the second stage of organogenesis.

1970 ◽  
pp. 134-142
Author(s):  
A.V. Holodna ◽  
O.O. Stolyar ◽  
H.H. Remez

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.


Author(s):  
A. V. Holodna ◽  
N. H. Buslaeva

Purpose. Determination of the influence of seed biodisinfectant, stimulator of growth and foliar feeding on the white lupine growth and development in the context of climate change. Methods. Field (to study the interaction of the object of study with biotic and abiotic factors); morphophysiological (for biological control over development of productivity elements at the stages of organogenesis); weight (to establish the indicators parameters of the crop structure elements and determine the grain yield); statistical (statistical processing of the research results). Results. The results of the analysis of the indicators of the average daily air temperature and the amount of precipitation from April to August and their comparison with long-term values are presented. Indicators of height and aboveground mass of white lupine plants in dynamics, depending on the pre-sowing seed treatment, plant growth stimulant and foliar feeding, correlation dependences of these indicators on the hydrothermal conditions of the growing season have been established. Conclusions. The growth and development of white lupine plants depends on the elements of the technology of its cultivation, as well as hydrothermal conditions during the growing season of the crop. The highest plants (83.0 cm) with their maximum weight (143,8 g/plant) were noted in the variant where the seeds of white lupine were treated with БТУ-р bioinoculant simultaneously with the MicoHelp biodisinfectant and foliar feeding of plants with micronutrient fertilizer Trazex at the ІХ stage of organogenesis was carried out. Mathematical models have been developed that confirm the close relationship between the level of height indicators and the aboveground mass of white lupine plants with weather conditions, the critical periods of their influence in the ontogenesis of plants were also determined.


Author(s):  
A. V. Holodna

Purpose. To increase the yield of blue lupine due to the intensification of the generative development of plants and maximum preservation of fruit elements by the phase of full ripeness by introducing the optimal dose of mineral fertilizers and foliar nutrition with a microfertilizer in chelated form at the optimum time, application of a bioinoculant and biofungicide. Methods. Field (to study the interaction of the research object with biotic and abiotic factors); morphophysiological (for biological control over the development of productivity elements at the stages of organogenesis); weight (to establish the parameters of the crop structure elements and determine the grain yield); statistical (statistical processing of research results). Results. The results of studies on the effects of different doses of mineral fertilizers, bioinoculant and biofungicide as well as foliar nutrition with microfertilizer in chelated form at different stages of organogenesis on the generative development of blue lupine plants of cultivar Peremozhets and grain yield are presented. The optimal dose of mineral fertilizers and the duration of plant foliar nutrition were determined. Conclusions. Application of the calculated dose of mineral fertilizers for the planned yield of grain of blue lupine of cultivar Peremozhets at the dose of 3.5 t/ha of mineral fertilizers (N68Р48К66), sowing with seeds treated with BTU-r bioinoculant (1 l/t) and MikoHelp biofungicide (1.0 l/t), foliar nutrition with Tropicel microfertilizer (0.3 kg/ha) at the second phase of plant organogenesis contributed to the intensification of their generative development (the number of flowers – 38.0 pcs., beans – 13.3 pcs./plant, which was 1.8 times higher than in the absolute control) as well as an increase by 39.3 % of the crop yield with a control indicator of 2.01 t/ha.


Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 777
Author(s):  
Sara Monzerrat Ramírez-Olvera ◽  
Libia Iris Trejo-Téllez ◽  
Fernando Carlos Gómez-Merino ◽  
Lucero del Mar Ruíz-Posadas ◽  
Ernesto Gabriel Alcántar-González ◽  
...  

Exogenous silicon (Si) can enhance plant resistance to various abiotic factors causing osmotic stress. The objective of this research was to evaluate the application of 1 and 2 mM Si to plants under normal conditions and under osmotic stress. Morelos A-98 rice seedlings, were treated with 1 and 2 mM SiO2 for 28 d. Subsequently, half of the plants were subjected to osmotic stress with the addition of 10% polyethylene glycol (PEG) 8000; and continued with the addition of Si (0, 1 and 2 mM SiO2) for both conditions. The application of Si under both conditions increased chlorophyll b in leaves, root volume, as well as fresh and dry biomass of roots. Interestingly, the number of tillers, shoot fresh and dry biomass, shoot water content, concentration of total chlorophyll, chlorophyll a/b ratio, and the concentration of total sugars and proline in shoot increased with the addition of Si under osmotic stress conditions. The addition of Si under normal conditions decreased the concentration of sugars in the roots, K and Mn in roots, and increased the concentration of Fe and Zn in shoots. Therefore, Si can be used as a potent inorganic biostimulant in rice Morelos A-98 since it stimulates plant growth and modulates the concentration of vital biomolecules and essential nutrients.


Author(s):  
Haresh S. Kalasariya ◽  
Nikunj B. Patel ◽  
Ankita Jain ◽  
Nayan D. Prajapati ◽  
Richa N. Patel

The modern agricultural sector is mainly dependent on synthetic fertilizer for enhancing the growth of crop improvements but a burden of inorganic and chemical-based fertilizer currently created a serious threat to human health as well as the soil environment. Fertilizer research is therefore focusing on an alternative to chemical fertilizer by exploiting natural sources such as marine macroalgae or seaweed. The use of seaweed will be an eco-friendlier approach to sustainable agriculture. Marine macroalgae or seaweed widely applicable in plant growth enhancements due to the presence of biological active phycocompounds such as proteins, phenolic compounds, amino acids, polysaccharides, plant-growth-promoting hormones, and some growth factors, etc. Several research studies have been carried out on the applicability of seaweed or the effect of marine algae or its components on plants and its quality. These types of constituents play their role in improving the morphological as well as biochemical characteristics of plants. The present review study focuses on the applicability of marine macroalgae as a biofertilizer or plant growth stimulator in agricultural applications. This study further helps to improve the nutritional quality of crops which prove to be useful in further investigations and applications. KEYWORDS: Seaweed, Marine Macroalgae, Biofertilizer, Growth stimulator, Agriculture


2021 ◽  
Vol 12 (1) ◽  
pp. 465-469

The 4-thioquinolinic succinate derivatives with potential growth-stimulating activity has been investigated. The monitoring of carbohydrate concentration has confirmed its stimulation of the metabolism in saffron and sugarbeet. This lets us conclude that it may be an excellent growth stimulator.


PLoS ONE ◽  
2012 ◽  
Vol 7 (11) ◽  
pp. e49824 ◽  
Author(s):  
Kevin A. Wood ◽  
Richard A. Stillman ◽  
Ralph T. Clarke ◽  
Francis Daunt ◽  
Matthew T. O’Hare

2020 ◽  
Vol 100 (6) ◽  
pp. 653-665
Author(s):  
B.D. Tidemann ◽  
J.T. O’Donovan ◽  
M. Izydorczyk ◽  
T.K. Turkington ◽  
L. Oatway ◽  
...  

Malting barley is important in western Canada, yet many malting cultivars do not meet malt quality standards, in part due to lodging. Lodging can decrease barley yield and quality thereby reducing the acceptability for malting. In other countries, plant growth regulator (PGR) applications are used to mitigate lodging. Chlormequat chloride (chlormequat), trinexapac-ethyl (trinexapac), and ethephon were tested at five locations over 3 yr in western Canada for their ability to limit lodging, as well as their effects on yield, agronomic traits, and pre-malt quality characteristics. PGR applications occurred between Zadoks growth stage (GS) 30–33 for chlormequat and trinexapac and GS 37–49 for ethephon. Seeding rates of 200, 300, and 400 seeds m−2 of CDC Copeland barley were used to increase the likelihood of lodging. Increased seeding rate decreased tillers per plant, height, days to maturity, kernel protein, and kernel weight. Ethephon increased the number of tillers per plant and decreased plant height, kernel plumpness, and kernel weight. Trinexapac decreased plant height and kernel weight. Days to maturity was investigated across site-years, with ethephon increasing maturity in 60% of comparisons. Trinexapac and chlormequat had limited effects on maturity. Lodging was investigated across site-years, with trinexapac showing the largest number of lodging reductions and scale of reductions. Ethephon reduced lodging in 36% of comparisons, while chlormequat had inconsistent effects. None of the products affected yield or grain protein. The results suggest PGRs may not be the solution to lodging for CDC Copeland barley on the Canadian Prairies; however, trinexapac shows the most promise of the products tested.


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