ABY 2009, 31(1) 42-48 DOI:   10.3724 SP.J.1143.2009.08104   ISSN: 0253-2700  CN: 53-1039/Q

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Hopea mollissima
WEN Bin , HE Hui-Ying , WANG Ru-Ling , TAN Yun-Hong , LAN Qin-Ying
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Physiological and Ecological Characteristics of Seed Germination of Endangered Hopea mollissima (Dipterocarpaceae)

WEN Bin , HE Hui-Ying , WANG Ru-Ling , TAN Yun-Hong , LAN Qin-Ying

Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences, Mengla 666303 , China


Seed longevity of Hopea mollissima under ambient conditions and the effects of seed maturity, temperature , illumination and soil moisture content on seed germination were studied in this paper , which indicated that the optimum temperature for seed germination was 25℃ though 20 - 30℃ is suitable; Periodic illumination and full darkness made no significant
difference to germination , but seeds germinated best at temperature range of 25 - 30℃ under periodic illumination, or at temperature range of 20 - 25℃ under full darkness; The suitable soil moisture content was 20%- 60% while the optimum one was 50%- 60%; During open storage under ambient conditions, seed germination percentage halved after 10 days and decreased to nil after 16 days . It appears that this species depended on its native habitat strongly . Deforestation and fragmentation are the key causes which endanger Hopea mollissima severely . Owning to recalcitrant properties of its seeds, the protection of this species relies on in-situ conservation supplemented with ex-situ conservation of living plants .

Keywords Hopea mollissima  
Received 2008-06-03 Revised 1900-01-01 Online:  
DOI: 10.3724 SP.J.1143.2009.08104
Corresponding Authors: WEN Bin
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