3种不同品系叠鞘石斛的对比研究

Comparative Analysis of Three Different Strains of Dendrobium denneanum

[目的]通过对3个不同叠鞘石斛新品系的农艺性状、产量及品质的对比研究,为选育优质品种提供理论依据。[方法]以夹江县现有农家常见栽培品为对照,观测了新品系JZSH-1、JZSH-2和JZSH-3的茎长、茎节数、茎粗、单茎鲜重、分蘖能力等农艺性状,采收后测定其鲜产量、干产量和折干率并进行品质测试。[结果]3个新品系的农艺性状、产量表现各有差异,新品系JZSH-2的鲜产量和干产量表现最优。3个新品系的品质均达到了《四川省中药材标准》的要求,新品系JZSH-2的品质表现最优。[结论]新品系JZSH-2产量、品质表现突出,推荐大力推广该品系的人工栽培。

[Objective] To provide theoretical basis for breeding good-quality variety through the comparative study on agronomic characters, yields and qualities of the three different strains of D.denneanum.[ Method] Using the existing common strain of D.denneanum in Jiajiag County as the control, the stem length, stalk node number, stem diameter, fresh weight of single stem and tillering capacity of the three new strains （JZSH-1, JZSH-2 and JZSH-3） were measured.After harvest, the fresh yield, dry yield and drying rate were measured for quality test.[Result] The agronomic characters and yields of three new strains were different, and the fresh and dry yields of the strain JZSH-2 showed the best.The qualities of three new strains all reached the requirement of Standards for Traditional Chinese Medicinal Materials of Si-chuan, and the quality of JZSH-2 was the best.[ Conclusion] The new strain JZSH-2 should be vigorously promoted for cultivation because of the outstanding yield and quality performances.