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Registration Number

0224U032868, (0122U000363) , R & D reports

Title

Substantiation of elements of technology of cultivation of sorrel and rhubarb of the Black Sea for seed purposes in the Northern Forest-Steppe of Ukraine

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Обґрунтування елементів технології вирощування щавлю кислого та ревеню чорноморського на насіннєві цілі в умовах Північного Лісостепу України

Head

Khareba Olena V., Доктор сільськогосподарських наук

Registration Date

10-12-2024

Organization

Research station "Mayak" Institute of Vegetebles and Melons, UAAS

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To substantiate and improve the elements and methods of technology for growing sorrel and rhubarb in the Northern Forest-Steppe of Ukraine by establishing optimal methods of threshing seedlings and regulations for desiccation to improve seed productivity and seed quality.

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Based on the results of the research conducted in 2022-2024, a regulation for the use of the desiccant Regalon was developed - 15% v. r. with an application rate of 1.5 l/ha on sorrel seedbeds: humidity decreased to 16% (13% less than the control); seed yield was - 0.36 t/ha (20% more than the control). The economic efficiency of the developed method is 35,154 thousand UAH/ha. Seeds sown from seedbeds that were exposed to desiccants provided the maximum yield of green mass at the level of 23.4 t/ha versus 21.6 t/ha, which is 8.3% more than the control. No negative impact of the aftereffects of desiccation on the morphological and identification characteristics of sorrel in the first generative generation was detected. Treatment of sorrel seedbeds with Macho adhesive at an application rate of 0.1 l/ha provided a seed yield of 0.4 t/ha (21.2% more than the control), conditional net profit amounted to 124,325 thousand UAH/ha, compared to 87,694 thousand UAH/ha in the control, the economic efficiency of the development was 35,721 thousand UAH/ha. It was determined that the seed yield for the treatment of Black Sea rhubarb seedbeds with Regalon desiccant at an application rate of 1.5 l/ha and harvested by direct combining was 1.06 t/ha (20.4% more than the control). The economic efficiency of the development is 64,132 thousand UAH/ha. Morphological identification features of Black Sea rhubarb in the first generative generation after the aftereffect of desiccation were preserved and corresponded to the characteristics of the variety, both in the first and second harvests. The maximum yield of cuttings for two harvests was - 18.9 t/ha from seeds, the testes of which in the second year of vegetation were subjected to desiccation with Regalon at the rate of application of 1.5 l/ha, with an initial seed moisture of 30% before harvesting. The increase in the yield of cuttings compared to the control was - 1.6 t/ha, which is 9.2%. It was established that spraying the testes wit

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Nesyn Volodymyr M.
Samoilovych Oleksii V.
Khareba Olena V.

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2024-12-10