Changes in the Physicochemical Characteristics of Sweet Corn Kernels during Grain Filling Stage with Different Sowing Date

Mi-Jung Kim; Hyo-Jin Park; Sun-Lim Kim; Gun-Ho Jung; Jung-Tae Kim; Seong-Hyu Shin; Young-Up Kwon; Ill-Min Chung

doi:10.7740/kjcs.2014.59.4.445

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Original Research Article

Changes in the Physicochemical Characteristics of Sweet Corn Kernels during Grain Filling Stage with Different Sowing Date 단옥수수 주요 품종의 등숙 중 종실 이화학적 특성 변화

31 December 2014. pp. 445-456

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Abstract

This study was conducted to investigate the kernel characteristics of sweet corn during ripening with different sowing date. Godangok and Guseulok were sown at April 10, July 10, July 20, and July 30 in 2013. Irrespective of sowing date, fresh and dry weight of 100 kernel, starch content, crude fat content, and hardness of sweet corn kernels were significantly increased according to maturation (p<0.05). But moisture content, total sugar content, crude protein content and crude ash content of sweet corn kernels were significantly decreased according to maturation (p<0.05). The changing rates of 100 kernel weight and starch content on kernels were faster at early sowing date than at late sowing date. The moisture content of sweet corn kernels was 68~69% at optimum for harvesting. The degree of sweetness on Godangok was about 1.8 and 1.4 times higher in sowing at July 20 and July 30 than in sowing at April 10. On the other hand, the degree of sweetness was similar regardless of sowing time on Guseulok. These results will be helpful to farmers for fall-harvest sweet corn cultivation and management.

Keywords

sweet corn

kernel characteristics

ripening

sowing date

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Information

Publisher :The Korean Society of Crop Science
Publisher(Ko) :한국작물학회
Journal Title :The Korean Journal of Crop Science
Journal Title(Ko) :한국작물학회지
Volume : 59
No :4
Pages :445-456
Received Date : 2014-08-25
Revised Date : 2014-09-30
Accepted Date : 2014-10-09
DOI :https://doi.org/10.7740/kjcs.2014.59.4.445

The Korean Journal of Crop Science ISSN:0252-9777(Print) 2287-8432(Online) 한국작물학회지

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