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Effects of water deficit on growth and performance of drip irrigated sweet potato varieties.
- Source :
-
Journal of the science of food and agriculture [J Sci Food Agric] 2021 May; Vol. 101 (7), pp. 2961-2973. Date of Electronic Publication: 2020 Nov 19. - Publication Year :
- 2021
-
Abstract
- Background: There are many scientific studies on performance of different sweet potato varieties under water deficits, however, no study on Koganesengan and Beniazuma varieties has been found in the literature. This study was aimed to investigate the effects of water deficit levels (control-WD <subscript>0</subscript> , low-WD <subscript>25</subscript> , medium-WD <subscript>50</subscript> and high-WD <subscript>75</subscript> water deficit levels) on growth, yield and quality parameters, water use efficiency and water-yield response factor values of these sweet potato varieties under drip irrigation.<br />Results: The seasonal water consumptions of varieties were calculated as 808 and 826 mm, respectively, under no water deficit. All of the growth (except average tuber length for Koganesengan) and yield parameters of both varieties were significantly affected by water deficit treatments. However, most of the quality parameters including total dry mater, starch, ß-carotene, ascorbic acid, protein, saccharose and glucose contents for both varieties; total ash, crude fiber and phenolic matter content for Beniazuma; and fructose content and antioxidant activity for Koganesengan variety had no response to water deficits at any level. Under high deficit and control, fresh and dry vine, tuber and total yields ranged from 4.80 to 14.54, 0.85 to 2.35, 1.59 to 10.97 and 6.40 to 25.52 t ha <superscript>-1</superscript> for Koganesengan and 6.05 to 27.88, 0.99 to 4.09, 2.17 to 22.91 and 8.22 to 50.79 t ha <superscript>-1</superscript> for Beniazuma, respectively.<br />Conclusion: The results showed that Beniazuma variety is proportionally more sensitive to water deficit than Koganesengan. It can be concluded that both varieties can be grown in Mediterranean conditions by providing optimum irrigation applications. © 2020 Society of Chemical Industry.<br /> (© 2020 Society of Chemical Industry.)
- Subjects :
- Antioxidants analysis
Antioxidants metabolism
Ascorbic Acid analysis
Ascorbic Acid metabolism
Ipomoea batatas chemistry
Ipomoea batatas growth & development
Phenols analysis
Phenols metabolism
Plant Tubers chemistry
Plant Tubers metabolism
Starch analysis
Starch metabolism
Agricultural Irrigation methods
Ipomoea batatas metabolism
Plant Tubers growth & development
Water metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1097-0010
- Volume :
- 101
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Journal of the science of food and agriculture
- Publication Type :
- Academic Journal
- Accession number :
- 33170508
- Full Text :
- https://doi.org/10.1002/jsfa.10929