Transplanting Date and Planting Density Affect the Growth Characteristics and Seed Yield of Italian Ryegrass

Yun-Ho Lee; Jeong-Won Kim; Hyeok-Jin Bak; Hyun-Ki Kim; Hyeon-Soo Jang; Dea-Yuk Kim; Jong-Tak Yoon

doi:10.7740/kjcs.2023.68.4.438

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2023 Vol.68, Issue 4 Preview Page

Transplanting Date and Planting Density Affect the Growth Characteristics and Seed Yield of Italian Ryegrass 이앙 시기와 재식 밀도에 따른 이탈리안 라이그라스의 생육 및 종실 수량 특성 평가

1 December 2023. pp. 438-444

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Abstract

Italian ryegrass (Lolium multiflorum Lam.; IRG) sowing season is delayed due to the autumn rainy season. Therefore, to address this problem, transplanting date and plant density were investigated. Transplant times investigated were October 20th, October 30th, and November 10th and planting densities were 50, 70, and 80 hills per 3.3 m². The plant height, leaf area index, and plant coverage rate were high in the following order: October 20th, October 30th, and November 10th. There was no significant difference among planting densities. In addition, the number of tillers and dry weight before and after wintering were high on October 20th. In terms of yield components, the number of tillers, dry weight, and seed yield per unit area were higher with the transplanting date of October 20th than with transplanting on November 10th. There was no difference in seed yield between the planting densities of 80 and 70 hills per 3.3 m². However, seed yield was low at 50 hills per 3.3 m². In conclusion, the transplanting time for stable seed production is late October, and optimal plant density is 70 and 80 hills per 3.3 m². A stable interplanting number before wintering will contribute to the seed yield.

Keywords

Italian ryegrass

plant seed yield

transplanting date

References

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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 : 68
No :4
Pages :438-444
Received Date : 2023-09-19
Revised Date : 2023-10-22
Accepted Date : 2023-11-01
DOI :https://doi.org/10.7740/kjcs.2023.68.4.438

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

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