Influence of intensification factors on photosynthetic activity of potato crops (Solanum tuberosum L.)
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 99, Issue
Abstract
It is shown the results of researches of the influence of mineral nutrition level on the area of the leaf surface and the photosynthetic activity of potato plants in the conditions of the Right Bank Forest-steppe of Ukraine. On average, over three years, the maximum area of the leaf surface of various varieties of ripeness was noted on the highest agrochemical background – 40 t / manure for mineral fertilizers N120P120K120. Among the different varieties of resistance, the medium-ripe varieties are distinguished: Vira variety – 51.5 thousand m2 / ha, Slavianka – 52.3 and Nadiyna – 50.7 thousand m2 / ha. By the formation of the leaf surface area in the second place, the mediumearly varieties: Dyvo – 43.9 thousand m2 / ha, Legend – 44.7 and Malynska White – 43.9 thousand m2 / ha. The least indicators were in medium-late varieties: Alladin – 41.7 thousand m2 / ha, Dar – 37.6 and Oksamyt – 42.8 thousand m2 / ha. The level of mineral fertilizers affects the formation of photosynthetic potential. In the application of fertilizers, regardless of weather conditions, the photosynthetic potential has naturally increased, and reached the maximum value on the experimental variant (40 t / ha manure + N120P120K120). In this variant of the experiment, in the mediumearly varieties, the photosynthetic potential was – Dyvo variety – 2.2 million m2 / ha versus 1.1 million m2 / ha in the control variant; Legend's variety, respectively, 2.1 and 1.0 million m2 / ha; Malynska White variety is 2.3 and 1.2 million m2 / ha. The magnitude of the pure productivity of photosynthesis was quite close to potato varieties of different groups of ripeness at the same application of different standards of mineral fertilizers. In the variant without fertilization (control) in medium-early varieties, the net productivity of photosynthesis of plants was: Dyvo variety – 8.1 g / m2 per day, which compared with the variant – background + N120P120K120 by 2.4 g / m2 a day; Legend's variety – 2.4 and Malynska white – 2.3 g / m2 less per day respectively.
Authors and Affiliations
Р. О. М’ялковський
Keywords
Related Articles
- EP ID EP590067
- DOI -
- Views 99
- Downloads 0
Biometric indices of sunflower hybrids under different sowing dates and row spacing
The article is devoted to the results of the investigations conducted in 2014–2016 under the steppe conditions of Mykolaiv region on typical black low humus soils. The investigations were aimed to study the influence of...
Comparative estimation of leather raw materials of bugay meat breeds in the conditions of the North of Ukraine
The article presents the results of investigations of technological properties of Bugay leather raw materials of specialized breed of meat breeds grown in the North of Ukraine. The origin of the Bugites influenced the qu...
The influence of agroecological factors on the microbial biomass content in the soil
The article deals with the investigation results of microbial biomass structure in the soil natural ecosystem and agroecosystem under the influence of basic agroecological factors. The main attention is focused on the an...
Microbiological risks in beef production
Hazard analysis during the slaughter of research animals in slaughter houses of Zaria breeding farm has allowed identifying critical control points. Risk assessment of microbiological safety of air, water and washings fr...
The population genetic structure of line 02 of Rhode Island Red chicken breed by microsatellite DNA polymorphism
The population genetic structure analysis of line 02 of Rod Island Red chicken breed by eight microsatellite loci was conducted. For all loci 29 alleles were detected (average 3.6 alleles per locus). By the value of the...