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2018 Vol.31, Issue 1 Preview Page

Research Article

Effect of Growing Period on the Dry Matter Productivity and Grain Yield of Amaranth (Amarnathus caudatus)

아마란스의 생육기간에 따른 건물생산성 및 종실 수량

Hyo-Hoon Nam12*
,
Joong-Hwan Lee2
,
Chang-Ki Son2
,
Young-Jin Seo1
남 효훈12*
,
이 중환2
,
손 창기2
,
서 영진1
1Bonghwa Herbal Crop Research Institute, Gyeongsangbuk-do Agricultural Research and Extension Services
2Institute of Bioresources Research, Gyeongsangbuk-do Agricultural Research and Extension Services
1경상북도농업기술원 봉화약용작물연구소
2경상북도농업기술원 생물자원연구소
* Corresponding Author
28 February 2018. pp. 24-31
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Abstract

Amaranth (Amaranth caudatus) is attracting attention as a preference crop in Gyeongsangbuk-do province. To determine its growth potential and cultivation requirements, we investigated its growth characteristics, dry matter productivity, and grain yield according to the growing period. Growth and dry matter productivity were significantly higher for plants that were sown on May 10th when the temperature was the highest, whereas the yield was significantly higher for plants that were sown on April 10th. Amaranth grain yield ranged from 96 to 243 kg according to the sowing date and cultivation year. The optimum harvest time for plants that were sown on April 10th, May 10th, and June 10th were 120, 110, and 110 days after seeding, respectively. The mean temperature and growing period had a significant quadratic function with yield. Based on these equations, the optimum growing temperature was estimated as 20.6℃ and the optimum growing period as 104-119 days after seeding.

Keywords
Harvest time
Relative growth rate
Sowing date
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 31
  • No :1
  • Pages :24-31
  • Received Date : 2017-11-09
  • Revised Date : 2018-02-06
  • Accepted Date : 2018-02-09
  • DOI :https://doi.org/10.7732/kjpr.2018.31.1.024
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