논문 상세보기

The effect of sowing date and daylength treatment on the development of soybean KCI 등재

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/318759
서비스가 종료되어 열람이 제한될 수 있습니다.
한국작물학회 (Korean Society Of Crop Science)
초록

Although there can be some differences among varieties, the developmental rate of soybean (Glycine max) is mainly influenced by temperature and photoperiod. The objective of this experiment, that is the first step for creating phenology model of soybean, is to investigate the developmental characteristics under different temperature and day length conditions. Considering maturity, employed were five cultivars, Hwaeomputkong, Sinpaldalkong, Taegwangkong, Daewonkong, and Seoritae. They were sown at three different dates and grown under natural day length throughout growing season in 2008, while in another field they were subjected to longday of 16 hours by the supplemental lighting from July 6 to maturity. Developmental processes were investigated every five days after seeding. Days to flowering and final number of node increased in late maturiity cultivars. These traits decreased in delayed seeding, while increased under longday treatment. Even though there were some varietal differences in the slope of the line, V-stage(the number of nodes) of soybean consistently showed the linear relation(r2>0.95) with the sum of effective temperature from emergence to flowering. Daylength would be a cardinal factor that determines development including final number of node and duration of reproductive stage. However, it has not been figured out completely. Further studies will focus on the effect of temperature on reproductive stage and developmental response to daylength.

저자
  • Doug-Hwan Choi(Department of Plant Science, Seoul National University)
  • Dong-Jin Kim(Department of Plant Science, Seoul National University)
  • Kang-Hyun Moon(Department of Plant Science, Seoul National University)
  • Byun-Woo Lee(Department of Plant Science, Seoul National University) Corresponding Author