Optimization of the production process of sunflower agrocenosis using growth regulators
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 101, Issue
Abstract
The purpose of the research is to study the influence of growth regulators Vermimag and Vermiodes applied for the pre-sowing seed treatment and spraying of the stands of sunflower hybrid NK Brio on their photosynthetic and seed yield. The study was conducted in 2013-2016. The soil in the experimental site was turf, podzolic, medium-loamy. Seeds were sown at a rate of 70 thousand / hectare of germinable seeds. The total area of the plot is 70 m2, the registration area is 50 m2. Placement of plots is systematic for a four-time repetition. The research is carried out in accordance with existing commonly used methods. It was established that the growth regulators Vermimag and Vermiodis influenced field germination, leaf area and photosynthetic activity of sunflower agrocenoses and the productivity of the culture. The highest rates of the leaf area increment in the flowering phase (54.8 thousand m2/ha, or 14.7 thousand m2/ha more than in control) were under the pre-sowing treatment of seeds of hybrid NC Brio with the growth regulator Vermiodex at a rate of 4 l/ton and spraying plants in the vegetation period with the same preparation twice at a rate of 4 l/ha. In this variant, the photosynthetic potential of crops was 2.874 million m2/ha per day, or 0.662 million m2/ha more compared with the control. The studies have shown that on average over the years of research the best yield gains were observed and exceeded the control in the variants of joint pre-sowing treatment of seeds and single-time spraying with growth regulator Vermiodis by 9.7-12.6%, under two-time spraying by 14.2-16.4%.
Authors and Affiliations
В. М. Сендецький
Keywords
Related Articles
- EP ID EP596035
- DOI -
- Views 82
- Downloads 0
The contents of chlorophyll in the leaves of potato plants
The article reflects the results of chlorophyll content in the leaves of potato plants of varieties of various ripeness, depending on the timing of planting and the depth of seeding of tubers during the growing season in...
The influence of seeding density and row spacing on the yield of sunflower hybrids of different ripeness groups
The article highlights the results of research on yield formation peculiarities of sunflower hybrids belonging to different ripeness groups under the conditions of the Right-Bank Forest-steppe of Ukraine. The influence o...
Dynamics of antibodies titers in rabbits of different types of higher nervous activity according to the action of the associated vaccine L"apimun Gemiks"
We studied the influence of types of higher nervous activity of rabbits on the dynamics of the manifestation of specific immunity under the action of a biological stimulus. In the experiment, the biological stimulus is a...
Formation of efficiency of the sainfoin sandy under the influence of ways and depth of the main processing of the soil
Questions of increase in productivity of a sainfoin sandy by means of optimization of ways and depth of the main processing of the soil in the conditions of the Northeast Forest-steppe of Ukraine are considered. It is es...
Associations of insulin and myostatin genes polymorphism with chicken live body weight
The article is devoted to the search of associations of insulin and myostatin genes polymorphism with chicken live body weight. As a result of the investigation it was shown that within line 38 of Rhode Island Red chicke...