Plant Diversity ›› 2009, Vol. 31 ›› Issue (1): 42-48.doi: 10.3724 SP.J.1143.2009.08104
• Articles •
WEN Bin , HE Hui-Ying , WANG Ru-Ling , TAN Yun-Hong , LAN Qin-Ying
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 significantdifference 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 .
WEN Bin , HE Hui-Ying , WANG Ru-Ling , TAN Yun-Hong , LAN Qin-Ying. Physiological and Ecological Characteristics of Seed Germination of Endangered Hopea mollissima (Dipterocarpaceae)[J].Plant Diversity, 2009, 31(1): 42-48.
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