이탈리안라이그라스 코윈어리 품종의 간척지 채종 재배에서의 적정 수확시기 설정

• 영문명: Identification of Ideal Seed Harvest Time for Itallian Ryegrass (IRG) ‘Kowinearly’ Variety in Reclaimed Land
• 발행기관: 한국작물학회
• 저자명: 강찬호(Chan Ho Kang) 이인석(In Sol Lee) 권석주(Suk Ju Kwon)
• 간행물 정보: 『한국작물학회지』제65권 제2호, 142~150쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2020.06.30

영문 초록

This experiment was conducted to set ideal harvest time for itallian ryegrass (IRG) seed in reclaimed land. For IRG ‘Kowinearly’ variety sown in both autumn and spring, the peak growth in reclaimed land occurred in 20-30 days after heading. Plant height of IRG seedings in the spring was 90.4% of the fall-sown’s plants. The yield of IRG seeds in reclaimed land was generally lower than that of farm land due to poor growth conditions. After heading, the lodging and shattering increased gradually with time. The highest yield of seed in the fall-sown trial treatment was 238 kg/10a. However, in the spring-sown treatment, the highest yield reached 169 kg/10a, which was 71% that of the fall-sown treatment. To set optimum harvesting time for IRG seed, morphological changes in the plant, moisture content of seed, and germination rate were analyzed according to time series after heading. After heading, IRG stem color had turned pink in 18 days and seed color also changed after 20 days. Following 20-25 days after heading, the seed moisture content decreased to below 55% and germination rate increased to over 90%. Therefore optimum harvesting time for IRG ‘Kowinearly’ variety in reclaimed land was 20-30 days after heading because germination rate and yields were high and shattering percentage was low.

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인용문헌(REFERENCES)

키워드

Italian ryegrass (IRG) ‘Kowinearly’ variety reclaimed land seed harvest time