Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)

The Korean Society of Grassland and Forage Science (한국초지조사료학회)
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Yields and Nutritive Values of Different Corn Cultivars

  • Ilavenil Soundharrajan (Grassland and Forages Division, National Institute of Animal Science) ;
  • Jeong Sung Jung (Grassland and Forages Division, National Institute of Animal Science) ;
  • Seung Hak Yang (Grassland and Forages Division, National Institute of Animal Science) ;
  • Hyung Soo Park (Grassland and Forages Division, National Institute of Animal Science) ;
  • Ouk Kyu Han (Department of Crops and Forestry, Korean National University of Agriculture and Fisheries) ;
  • Ki Choon Choi (Grassland and Forages Division, National Institute of Animal Science)
  • Received : 2024.08.20
  • Accepted : 2024.09.27
  • Published : 2024.09.30
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Abstract

Corn is essential for both humans and animals. The crop is the third most important food crop after rice and wheat. A rise in farming is resulting in a lack of self-sufficiency of high quality forages. Therefore, corn cultivars in Korea must be optimized to increase productivity and yield. A study was conducted in Pyeongchang, South Korea between 2021-2022 to evaluate the characteristics and productivity of three corn cultivars: Kwangpyeongok, AGR 41, and Nero IT. Different varieties of corn were sown in Pyeongchang on April 29 and April 27 of 2021 and 2022, respectively. The productivity and characteristics of the cultivars Kwangpyeongok, AGR 41, and Nero IT were evaluated during the yellowing ripening stage. The characteristics included the leaves, stems, grain, and stover content. Across different corn cultivars, there was no significant difference in stem height, diameter, forage or grain quantity based on an average of two years. Yet, significant differences were noted in the stem heights of all cultivars between 2021 and 2022 (p<0.05). There was a significant difference in the diameters of Kwangpyeongok and Nero IT between 2021 and 2022. A significant difference in forage yield was observed for Nero IT between 2021 and 2022. The yield of grains and forages was higher in 2021 than in 2022, which could be attributed to temperature and precipitation variations. We can conclude from these data that all cultivars in Pyeongchang showed significant productivity and yield, which could be useful to produce nutrient rich silage for livestock.

Keywords

Acknowledgement

The research was supported by a grant from National Institute of Animal Science, Rural Development Administration, Republic of Korea titled "Efficient succession production of Domestic Maize and Triticale silage and feeding to Hanwoo cow and heifer for growth, reproduction and beef production (PJ017203)". This study was supported by 2024 the RDA Fellowship Program of National Institute of Animal Science, Rural Development Administration, Republic of Korea.

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