肚倍的发育与单宁酸积累规律的研究

目的:确定肚倍适宜的采收时间。肚倍系肚倍蚜寄生在青麸杨小叶上形成的虫瘿。方法:通过探讨虫瘿发育规律及其发育过程单宁酸含量的变化。结果:倍蚜虫的瘿内生活期80 d左右。虫瘿的发育在前期速度较快,后期较缓,并出现2-3次短期的停滞生长;肚倍成熟爆裂最初出现在7月12日,最晚为7月30日,肚倍成熟爆裂时间与雏期虫瘿的出现时间及后期虫瘿外形大小无关,而与雏期虫瘿发育状况相关:即前期发育快,成熟时间早,前期发育慢,成熟时间晚。肚倍虫瘿在生长的全过程中单宁酸含量维持稳定。结论:肚倍采收期应选择在7月12日之后的数天内。

Study on Gallnuts Development and Its Tannin Amount

Objective: To find out the suitable time for collecting gallnuts. When Kaburgaia rhusicola parasailed on leaflets of Rhus potainii, the parts of the leaflets developed into gallnuts. Method: The regulation of development and tannin amount during whole growing stage were studied. Result: K. rhusicola lived in gallnuts for about 80 days. The gallnuts developed quickly during earlier stage and slowly during later stage. Gallnuts maturated from 12th, July to 30th, July, which had no relations with the size and the time for forming, but had relations with development at earlier stage. It developed quickly with earlier maturation and developed slowly with later maturation . Its tannin amount kept stable during the whole growing stage. Conclusion: The best harvesting days are those shortly after 7th, July.