Studies on Germination Rates and Early Seedling Growth Characteristics by Different Storing Temperatures, Durations, and Methods in Aralia cordata var. continentalis (Kitagawa) Y.C.Chu

Abstract

: This study was conducted to improve the managing and storing methods of the seeds of Aralia cordata var. continentalis (Kitagawa) Y.C.Chu, to examine the viability and the germination ability of seeds with different storing conditions and methods, and to develop new ways to propagate and have better healthy seedling. Therefore, the germination rate, days required for germinating seeds, and early growth responses of Aralia cordata var. continentalis (Kitagawa) Y.C.Chu were investigated with different storing temperatures, durations and methods. The germination rate was higher in stratified storage than that in dry storage condition. The highest germination rate was with outdoor temperature at 30 days after stratified storage. The days required for germinating seeds were less than 10 days with the treatment of 25℃ and outdoor temperature in stratified storage. In dry condition, they were shorter with 4℃ and 25℃ than those with -20℃ and outdoor temperature. Leaf number of seedling was higher in stratified storage compared to that in dry condition, while it was not clearly different according to storage temperatures and durations. Leaf length and leaf width of seedling was not difference among the treatment of storage methods, temperatures, and durations. Stem length of seedling was higher in stratified storage than those in dry condition, while root length was not clearly different among the treatments. It would be assumed that temperatures, methods and durations of storage could affect much to the germination rate and the early seedling growth response.

Effects of Seed Storage Temperature and Pre-Treatment on Germination, Seedling Quality on Wild Trichosanthes kirilowii Maxim and Trichosanthes kirilowii var. japonica Kitam

“…무엇보다 야생종자는 발아하기 적합한 환경이 아니 면 휴면에 돌입하거나 발아율이 저조하여 (Bewley, 1997) 종 자저장온도와 저장방법 등의 적절한 발아조건 탐색은 야생식 물의 재배와 산업화를 위한 가장 중요한 단계이다 (Bonner, 2008). 현재 진행되는 대부분의 약용작물 발아시험은 실험실 수준에서 진행되어 실험실외에서의 발아율과 상이 (Lee et al, 2013) 할 수 있어 현장에서 직접 적용하기 어려운 문제 (Kang et al, 2004)가 있다. 또한 발아율과 건전한 유묘를 획 득하기 위해 종자 전처리시 화학약품, 호르몬제 및 프라이밍 처리와 같은 전문적이고 복잡한 기술이 필요하다 (Nascimento, 2003 결과 및 고찰 …”