Open AccessEvaluation of tomato phenological stages passing on multilevel installations «Fitopiramida»
Author(s) -
A. S. Eroshevskaya
Publication year - 2021
Publication title -
ovoŝi rossii
Language(s) - English
Resource type - Journals
eISSN - 2618-7132
pISSN - 2072-9146
DOI - 10.18619/2072-9146-2021-5-54-58
Subject(s) - ripening , phenology , horticulture , crop , greenhouse , biology , indeterminate , germination , hybrid , cherry tomato , indeterminate growth , growing season , agronomy , mathematics , pure mathematics , ideotype
Relevance. Multilevel pipe vegetation installations (MVTU) “Fitopiramida” are designed for hydroponic cultivation of different agricultural crops including tomatoes. Methods. To create F 1 tomato hybrids for this technology the assessment of phenological stages passing of tomato lines on “Fitopiramida” MVTU was carried out. 19 breeding lines including 9 cherry tomato lines, 10 large-fruited tomato lines of indeterminate and determinate growth types were tested. These lines were used in various hybridization schemes to obtain F 1 tomato heterotic hybrids for “Fitopiramida”. Results. According to the results of the conducted researches in conditions of low-volume technology “Fitopiramida” duration of periods “germination – beginning of flowering” ("G-BF") and “germination – beginning of ripening” ("G-BR") is significantly reduced. In cherry group lines “G-BR” period is shorter by 17.7 days at average, in large-fruited lines by 23-27.3 days at average depending on growth type. The difference in ripening time is more expressed in largefruited lines; border-grown Kb 183 line began ripening 35 days later. Shorter growing season makes it possible to carry out largest number of crop rotations per year to obtain maximum yield per area unit (in full year use greenhouses). Similar results were obtained in the tests of tomato varieties and F 1 hybrids on “Fitopiramida” MWTU in 2019-2020 in terms of phenological stages passing acceleration and earlier fruiting of hydroponic grown tomatoes.