Changes of Seed Quality of Chinese Milk Vetch (Astragalus sinicus L.) During Seed Developmental Stages

• 발행기관: 한국작물학회
• 저자명: 김욱(Wook Kim) 나채선(Na, Chae Sun) 이용호(Yong Ho Lee) 홍선희(Sun-Hee Hong) 장철성(Cheol Seong Jang) 강병화(KangByeungHoa) 이종기(Jong Ki Lee) 김태호(Taeho Kim)
• 간행물 정보: 『한국작물학회지』제52권 제4호, 363~369쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2007.12.30

영문 초록

The objective of this study was to investi-gate the variation of Chinese milk vetch (Astragalus sinicusL.; CMV) seed quality after flowering. We tagged indivi-dual open flowers of CMV at the day of maximum flower-ing (11 May) in Seoul, Korea. Seed samples were har-vested serially at 15, 20, 25 and 30 days after flowering(DAF). To compare with dried seeds, non-dried seeds weretested immediately after harvest and the remaining seedswere placed at room temperature for 4 weeks. Seed length,mean germination time (MGT), germination speed (GS),germination performance index (GPI) and physical dor-mancy rate (PDR) were investigated. Seed length increasedto 2.6 m and 1000 seed weight reached up to 2.2 g until25 DAF. Seed moisture content dramatically decreased from20 to 25 DAF. Moisture content of non-dried seed (7.5%)was similar to that of dried seed (5.5%) at 25 DAF. Therate of seed viability reached up to 94% at 25 DAF. Incase of dried seed, GR increased up to 39% at 25 DAFwhereas GR of non-dried seed varied from 5 to 10%. GSand GPI of dried seed were significantly higher than thosedecreased since 20 DAF, whereas PDR of non-dried seedhas increased. GR, GS and GPI increased as PDR de-creased. Our results evidenced that PDR might be one ofmajor factor in variation of seed quality, of which develop-ment was completed at 25 DAF.

목차

MATERIALS AND METHODS

RESULTS AND DISCUSSION

ACKNOWLEDGEMENT

REFERENCES

키워드

Astragalus sinicus seed quality seed develop-ment days after flowering drying treatmentChinese milk vetch (Astragalus sinicusL., CMV) is abiennial green manure crop belonging to theFabaceaefamily which is mainly cultivated in North-East Asia, e