Effects of Temperature and Daylength on the Morphogenesis of Lettuce Seed

종자형성기(種子形成期)의 일장(日長) 및 온도조건(溫度條件)이 상치종자(種子)의 형태형성(形態形成)에 미치는 영향(影響)

  • Choi, Kwan Sam (Dept. of Agricultural Biology, Coll. of Agriculture, Chungnam Natl. Univ.)
  • Published : 1981.06.30


The effects of temperature and day length during seed formation on the morphogenesis of lettuce seed were investigated using two cultivars of MSU 15 and MSU 16. Seed size and weight, and thickness of seed coat o f both cultivars greatly influenced by temperature, but fresh weights and dry matter weights of mother plants were influenced by day length, not by temperature. Interactions between the adaptive polymorphism and climatic conditions were also discussed. Environmental conditions affected the morphology of lettuce seed and this variation of seed morphology resulted from interaction between genetic potentialities and environmental conditions.