Assessing seed vigour and germination in rare endangered species is critical for developing effective in situ and ex situ conservation strategies. Pinus dabeshanensis is an extremely endangered pine endemic to eastern China. To obtain fundamental propagation information for this
species, its seed traits and germination were studied. The viability of fresh filled seeds was 100% based on the 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) method, and viability was maintained for 10 months at both 4°C and room temperature. Scarification resulted in rapid uptake of
water, but it was still faster for seeds stored at room temperature than for seeds stored at 4°C. For seeds stored at room temperature, there were significant differences in the mean germination time among seeds germinated at 20/10, 25/15, 30/20 or 35/25°C, but final germination was
similar (78.1-90%). Overall, the storage conditions greatly affected water uptake, seed vigour and germination. An understanding of these relationships is vital for the conservation and management of this endemic endangered species.
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SEED STORAGE CONDITIONS;
Document Type: Research Article
July 1, 2019
This article was made available online on August 26, 2019 as a Fast Track article with title: "Effects of seed storage conditions on seed water uptake, germination and vigour in Pinus dabeshanensis, an endangered pine endemic to China".
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