The Time for Collecting of Cryptomeria japonica Seeds

• 발행기관: 한국자원식물학회
• 저자명: Seog-Gu Son Hyo-Jeong Kim Chan-Soo Kim Young-Je Kang Chang-Soo Kim Kwang-Ok Byun
• 간행물 정보: 『한국자원식물학회지』제22권 제6호, 535~539쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2009.12.31

영문 초록

The time of seed collection is regarded as one of major concerns to obtain sound seeds. The physical and germinal aspects of Cryptomeria japonica D. Don (Taxodiaceae) seeds were analyzed to determine the optimum harvesting time in Korea. Cones were picked every 10 days from the 30th of July to the 30th of October in both 2005 and 2006. Seeds were collected from picked cones. Seed size and weight were not significant in two consecutive years. The 1,000-seed weight was 3.3 g for cones picked at the 18th of August and 5.3 g for cones picked at the 30th of September. The size of seeds was increased as the time of collection from the 18th of August to the 30th of September: from 19.3 mm to 21.3 mm in length and from 15.8 mm to 18.5 mm in width. Average germination rates in 2005 was 18.3% and 19.6% in 2006. The highest germination rate was 34.3% from seeds collected at the 30th of September in 2005. In 2006, the highest germination rate was 31.7% for seeds collected at the same date as the 2005 seeds. After the end of September, germination rate was decreased in both years. The results implied that the best cone picking time for Korean C. japonica seeds is around the end of September.

목차

INTRODUCTION

MATERIAL AND METHODS

RESULT AND DISCUSSION

LITERATURE CITED

키워드

Embryos Germination rate Seed orchard Seed size Seed weight