ISJ Theoretical & Applied Science 08(100) 2021

Philadelphia, USA

Ostonakulov, T. E., Tursunov, G. S., Amanturdiev, I. K., & Shamsiev, A. A.

Management of growth, productivity of photosynthesis and yield of sweet potato by correct selection of varieties and seedling time.

Full Article: PDF

Scientific Object Identifier: http://s-o-i.org/1.1/TAS-08-100-12

DOI: https://dx.doi.org/10.15863/TAS.2021.08.100.12

Language: English

Citation: Ostonakulov, T. E., Tursunov, G. S., Amanturdiev, I. K., & Shamsiev, A. A. (2021). Management of growth, productivity of photosynthesis and yield of sweet potato by correct selection of varieties and seedling time. ISJ Theoretical & Applied Science, 08 (100), 58-62. Soi: http://s-o-i.org/1.1/TAS-08-100-12 Doi: https://dx.doi.org/10.15863/TAS.2021.08.100.12

Pages: 58-62

Published: 30.08.2021

Abstract: The article presents the results of studying the influence of the timing of planting seedlings on the characteristics of growth, the formation of photosynthetic potential, and the yield of new varieties of sweet potatoes. It was revealed that the timing of planting seedlings of new varieties of sweet potato significantly affects the growth and formation of plants, and the highest output of seedlings (15.0-20.7 pcs. from 1 tuber), tall (158.1-191.6 cm), branchy (13.6-15.6 pcs. from a bush) with powerful tops and an area of the photosynthetic apparatus (0.66-0.78 m2 from 1 bush) when planting seedlings on April 30. At the same time, the net productivity of photosynthesis was the highest in all studied varieties of sweet potatoes and amounted to 4.16-6.11 g/m2 per day. The yield varied in terms of planting dates and the studied sweet potato varieties from 34.5 to 53.6 t/ha. The highest yield of marketable tubers (50 t/ha and more) was obtained when planting seedlings on April 30 in the sweet potato varieties Sochakinur, Toyloki, and Filial, which was also the highest (93.5-96.5%) yield of healthy standard tubers with good biochemical composition during storage.

Key words: varieties, seedlings, planting, leaf surface, net productivity of photosynthesis, marketability, keeping quality, biochemical composition.