不同杂种松产脂力及松脂成分的变异研究

Comparative Analysis of Resin-producing Capacity and Resin Composition of Different Hybrid Pine

为了研究不同杂种松的产脂力及松脂成分的差异,对21年生湿地松(PEE)与加勒比松(PCH和PCB)的5个不同杂种的产脂力、松脂成分进行方差分析与相关分析。结果表明:杂交松及其对照样的产脂力差异显著,其中3个杂种(PEE×PCH、PCH×PEE、PEE×PCB、(PCH×PEE)×PEE、PCH×(PCH×PEE))产脂力分别比3个对照样(PEE、PCH和PCB)均值高74. 55%、23. 27%、37. 19%、65. 26%、46. 71%,其中PEE×PCH杂种产脂力表现最优;杂种及其对照仅松脂含油量、β-蒎烯、柠檬烯、左旋海松酸、去氢枞酸、新枞酸差异显著。松脂含油量、单萜中α-蒎烯、β-蒎烯含量最高的杂种分别为PEE×PCH(31. 02%)、PEE×PCB(23. 24%)、PEE×PCH(14. 70%);左旋海松酸、去氢枞酸、新枞酸含量最高杂种分别为PEE×PCH(28. 38%)、PCH×(PCH×PEE)(4. 34%)、(PCH×PEE)×PEE(11. 46%)。PEE×PCH杂种产脂力与松脂性状的相关分析表明,产脂力与松脂性状相关性不显著,含油量、β-蒎烯、柠檬烯、左旋海松酸之间的某种或某几种存在相关性。

In order to study the resin-producing capacity of different hybrid pines and the content of oleoresin,the variance and correlation analysis of resin-producing capacity and oleoresin composition of five 21-year-old hybrid pines of slash pine(PEE)and caribbean pine(PCH and PCB)and their contrast were conducted.The results showed that there was significant difference in resin-producing capacity between hybrid pine and its contrast.Lipid production ratios of 3 hybrid pines(PEE×PCH,PCH×PEE,PEE×PCB,(PCH×PEE)×PEE,PCH×(PCH×PEE))were higher than the average of the 3 contrast by 74.5 5%,23.27%,37.19%,65.26%,46.71%.PEE×PCH combination had the best resin-producing capacity.Turpentine oil,β-pinene,limonene,levopimaric acid,abietic acid,neoabietic acid of different combinations had significant difference.The highest content of hybrids turpentine oil andα-pinene,β-pinene were PEE×PCH(31.02%),PEE×PCB(23.24%),PEE×PCH(14.7%),respectively.The highest levopimaric acid,abietic acid,neoabietic acid content in combinations were PEE×PCH(28.38%),PCH×(PCH×PEE)(4.34%),(PCH×PEE)×PEE(11.46%),respectively.The correlation analysis of PEE×PCH combination showed that there was no significant correlation between the resin-producing capacity and oleoresin composition,but some of oil content,β-pinene,limonene,levopimaric acid were significantly correlated.