Effect of Temperature on Seed Germination of Korean Native Viola Species

• 영문명: Effect of Temperature on Seed Germination of Korean Native Viola Species
• 발행기관: 한국자원식물학회
• 저자명: Lee, Cheol-Hee Hwang, Ju-Kwang
• 간행물 정보: 『한국자원식물학회지』제19권 제6호, 700~705쪽, 전체 6쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2006.12.30

영문 초록

Present studies were performed to determine the physiology of seed germination in Viola species native to Korea. Twelve species, 1 variety and 1 form were collected, classified and used as materials: V. collina, V. blandaefomis, V. rosii, V. chaerophylloides, V. phalacrocarpa, V. patrinii, V. mandshurica, V. mandshurica for. albescence, V. seoulensis, V. yedoensis, V. keiskei, V. variegata, V. variegata var. chinensis, and V. verecunda. V. tricolor Helen Mount was also used to compare wild with cultivated species. In order to investigate the effect of temperature on seed germination, seeds stored at 4±2∘C for 10 months or 4 years were incubated at 10, 15, 20, 25∘C under 16h illumination with 4 replicates per treatment. Seeds which had not germinated at 10∘C were transferred to 30∘C to assess the effect of temperature change in germination. Germination percent and the days of first, 40% and 80% germination were assessed. Capability of seed germination varied with taxon; Species belonging to subsection Patellares had high ability of germination, compared to species in the other subsections, and series Chinensis was the best among subsection Patellares. Species capable of high germination germinated in all temperatures with reasonably high germination rate, but the other species responded sensitively to temperature with different germination patterns. Higher the temperature, shorter the incubation time required for first, 40% and 80% of germination. Therefore, high temperature was effective in almost all species, not only for inducing high rate of germination but also the uniformity of germination. Temperature change from 10∘Cto30∘C had a positive effect on seed germination.

키워드

Seed germination Viola Temperature Taxon