Growth Characteristics and Seed Productivity of Italian Ryegrass (Lolium multiflorum L.) Cultivars under Different Salinity in Saemangeum Reclaimed Tideland

Abstract

Although the forage production area of Italian ryegrass is expanding in Korea, most of the seeds are imported from abroad. This study was conducted to examine seed productivity of domestic varieties of Italian ryegrass under different soil salinity in reclaimed tideland. Compared to 0.1% of soil salinity, the emergence rate at 0.2 -0.3% salinity decreased by 7%. The number of ear and grain weight also decreased at the 0.2 -0.3% of salinity, eventually leading to 23% decreases in seed yield compared to the 0.1% salinity. There was no significant difference in yield components among cultivars, but Greenfarm showed slightly higher yield components than other cultivars. Therefore, when domestic cultivars are harvested in reclaimed land, it is expected to increase the self-sufficiency of domestic seeds and to replace imports of foreign seeds.

Agricultural Water Salinity of Reclaimed Tidelands in Southwestern Coastal Areas of South Korea

“…따라서, 습해 우려가 없고, 재배기간 동안 주기적인 관개로 일시적 제염이 용이한 벼 (Oryza sativa L.)를 주로 재배하고 있다 (Park et al, 2022). 하지만, 최근 쌀 소비량 감소 등에 의해 간척지 밭 작물 재배 필요 성이 증가하고 있어, 간척지 토양에서 사료작물 (Jang et al, 2020;Bae et al, 2021;Yun et al, 2021), 서류 (Lee et al, 2021a), 곡류 (Lee et al, 2021b;Oh et al, 2022) 등 다양한 작물 재배를 위해 토양 염농도 관리 기술 개발에 대한 연구 가 진행되고 있다 (Jeong et al, 2020;Seo et al, 2022).…”