采用“V”字形下降式采脂法,割脂频率为1 d 1次。设置不同侧沟深度(伤及木质部2~3 mm和仅伤及韧皮部)和不同刺激剂(刺激剂D和刺激剂J)的组合处理。结果表明:不同侧沟深度对产脂量和树脂道数量均无显著影响;同一侧沟深度处理下,刺激剂D...采用“V”字形下降式采脂法,割脂频率为1 d 1次。设置不同侧沟深度(伤及木质部2~3 mm和仅伤及韧皮部)和不同刺激剂(刺激剂D和刺激剂J)的组合处理。结果表明:不同侧沟深度对产脂量和树脂道数量均无显著影响;同一侧沟深度处理下,刺激剂D和刺激剂J处理能显著增加产脂量,尤其是刺激剂J对仅伤及韧皮部的处理增脂效果最佳,增脂率达27%;添加刺激剂均能显著促进新生树脂道数量的增加,增长率在257%~398%;添加刺激剂处理能促进树脂道数量增加,但单个树脂道面积会减小。展开更多
Dolichothyreus Usinger & Matsuda, 1959 and D. stigmatus Usinger & Matsuda are recorded from China for the first time. The male of D. stigmatus is redescribed and the diagnostic morphological features of species are...Dolichothyreus Usinger & Matsuda, 1959 and D. stigmatus Usinger & Matsuda are recorded from China for the first time. The male of D. stigmatus is redescribed and the diagnostic morphological features of species are illustrated.展开更多
文摘采用“V”字形下降式采脂法,割脂频率为1 d 1次。设置不同侧沟深度(伤及木质部2~3 mm和仅伤及韧皮部)和不同刺激剂(刺激剂D和刺激剂J)的组合处理。结果表明:不同侧沟深度对产脂量和树脂道数量均无显著影响;同一侧沟深度处理下,刺激剂D和刺激剂J处理能显著增加产脂量,尤其是刺激剂J对仅伤及韧皮部的处理增脂效果最佳,增脂率达27%;添加刺激剂均能显著促进新生树脂道数量的增加,增长率在257%~398%;添加刺激剂处理能促进树脂道数量增加,但单个树脂道面积会减小。
基金grants from Natural Science Foundation of Beijing (6083023)the National Natural Science and Technology Basic Platform Projects (2005DKA21105,2005DKA21402)Hainan Biological Resources Survey Project (2006FY110500)
文摘Dolichothyreus Usinger & Matsuda, 1959 and D. stigmatus Usinger & Matsuda are recorded from China for the first time. The male of D. stigmatus is redescribed and the diagnostic morphological features of species are illustrated.