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| Effects of different seeding treatments on germination rateand seedling growth of Pterocarpus santalinus |
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| DOI：10.16768/j.issn.1004-874X.2016.12.002 |
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| Abstract: |
| Pterocarpus santalinus is a rare species of rosewood with great historical and cultural value and
practical value. But for a long time，the development of P. santalinus industry is difficult to sustain because of the
rising domestic market demand and the lack of practical and efficient breeding technology. In this paper，different
mechanical treatments and acid treatments before pod sowing were studied to explore the effects of different degree
of mechanical treatments on the germination rate in current year and next year，and to find a quick and convenient
pod pre-sowing method of P. santalinus through the innovative use of concentrated sulfuric acid for seed soaking with
10 min，20 min，30 min or 40 min. The results showed that P. santalinus pods had better seed vigor with mining
sowing，and after one year of storage，the seed vigor decreased and it was difficult to germinate. Cutting fruit wings
to visible seeds could increase seed germination rate to 73% for sowing in current year and 58% in the next year. The effect of concentrated sulfuric acid for seed soaking did not reach the expectation. And the effect of seed soaking was
better within 10 min，the germination rate could increase to 37%，but the soluble protein content of seedling leaves
increased significantly. |
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