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Effects of Planting Density and Harvesting Time on Production of Small-size Tuberous Roots in Sweet Potato
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  • Journal title : KOREAN JOURNAL OF CROP SCIENCE
  • Volume 60, Issue 4,  2015, pp.491-497
  • Publisher : The Korean Society of Crop Science
  • DOI : 10.7740/kjcs.2015.60.4.491
 Title & Authors
Effects of Planting Density and Harvesting Time on Production of Small-size Tuberous Roots in Sweet Potato
Lee, Na-Ra; Choi, Kyu-Hwan; Lee, Seung-Yeob;
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 Abstract
Small-sized tuber of sweet potato (Ipomoea batatas Lam.) is more preferred by Korean consumers, because it is convenient to eat with hands, and can easily be steamed or roasted in small pan as a healthy snack for a small family. The present study was aimed to investigate the effect of high-density plantings and harvesting times on production of smallsized tuber (50~200 g). Four varieties (`Annobeny`, `Daeyumi`, `Shinzami`, and `Yeonhwangmi`) were planted in 2-row zigzag high-density planting (, A; , B) and 1-row planting (, control) covered with black vinyl film on May 23th, 2014. Marketable yields and small-sized tuber yields were compared between 120- and 150-day harvesting. Vine length and fresh weight per plant were significantly decreased in 2-row planting A and B plots compared to the control at 120 days after planting. Weight of tuber per plant, mean weight of tuber and number of tuber per plant were significantly decreased in 120-day harvesting of A and B plots than in the control. Marketable yields per 10a were increased by 17% () and 8% () in 120-day harvesting of A and B plots compared to the control (), and those were largely increased by 29% () and 26% () in 150-day harvesting than in the control (). Proportions of small size tuber (50~200 g) were increased by about 65% in 150-day harvesting of A and B plots compared to the control (55.3%). Small-size tuber yield and marketable yield were highly increased in 150-day harvesting of 2-row zigzag high-density planting A ().
 Keywords
high-density planting;Ipomoea batatas;marketable yield;tuber size;vine growth;
 Language
Korean
 Cited by
 References
1.
Bouwkamp, J. C. and L. E. Scott. 1980. Effect of plant density on yield and yield components of sweet potato. Ann. Trop. Res. 2 : 1-11.

2.
Guertala, E. A. and J. A. Kembleb. 1997. Nitrogen rate and within -row plant spacing effects on sweetpotato yield and grade. J. Plant Nutr. 20 : 355-360. crossref(new window)

3.
Kattan, A. A. and B. B. Bryan. 1960. On newly leveled land irrigation and twin spacing improved yield and grade of sweet potatoes. Arkansas Farm Research 9(6) : 8 (Abstract).

4.
Kim, H. S., Y. H. Moon, M. N. Chung, Y. S. Ahn, J. S. Lee, and J. K. Bang. 2006. Effect of planting date, plant spacing, and harvest time on the production of small-sized sweetpotato in the alpine zone of Korea. Korean crop sci. 51 : 193-197.

5.
KOSIS (Korean Statistical Information Service). 2012. http:kosis.kr.

6.
Lee, S. Y., S. Y. Sim, S. W. Lee, H. K. Lee, and J. W. Lim. 2006. Growth and fruit characteristics as affected by different planting distances among plant types in pepper (Capsicum annuum L.) for pickles. Kor. J. Hort. Sci. Technol. 24 : 162-167.

7.
Miller, J. G., 1930. A study of mutations of the Porto Rico sweet potato. Proc. Am. Soc. Hort. Sci. 27 : 343-346.

8.
Ming, S. U., J. Huang, X. Gan, R. Xu, and J. Ye. 2011. Effects of plant-row spacing on growth and yield characters of sweet potato. Acta Agriculturae Jiangxi : 2011-05 (Abstract).

9.
Mulkey, W. A. and W. B. McLemore. 1992. Effect of plant spacing on yield of selected sweet potato cultivars with various planting dates. HortScience 27(11) : 1165 (Abstract).

10.
Nam, S. Y., S. K. Jong, C. W. Rho, and K. M. Kim. 1997. Effect of planting density on the growth and yield in early cultivation of sweet potato. RDA. J. Crop Sci. 39(1) : 61-67.

11.
Ramon, A. Arancibia, C. D. Smith, D. R. LaBonte, J. L. Main, T. P. Smith, and A. Q. Villordon. 2014. Optimizing sweetpotato production for fresh and processing markets through plant spacing and planting-harvest time. HortTechnology 24 : 16-24.

12.
RDA. 2006. Cultivation of sweet potato. Standard textbook for agronomy-28. Rural Development Administration. Suwon. Korea.

13.
Ruiz, M. E., D. Pezo, and L. Martinez. 1980. The use of sweet potato (Ipomoea batatas,(L.) Lam) in animal feeding: I agronomic aspects. Trop. Anim. Prod. 5 : 144-151.

14.
Schultheis, J. R., S. A. Walters, and D. E. Adams. 1999. In-row plant spacing and date of harvest of 'Beauregard' sweetpotato affect yield and return on investment. HortScience 34 : 1229-1233.

15.
Sulaiman, H. and O. Sasaki. 2001. Influence of planting density on the root growth and yield of sweet potato : Ipomoea batatas Lam. Mem. Fac. Agr. Kagoshima Univ. 37 : 11-19.

16.
Yi, E. S., Y. S. Lee, H. D. Kim, S. T. Yoon, and D. J. Lee. 2007. Effects of soil compacting and pe film mulching on growth and yield in sweet potato "Keumshi" and "Shinyulmee". Koran J. Intl. Agri. 19 : 43-48.