目的 研究解决多花黄精Polygonatum cyrtonema组培苗移栽后成苗率低、长势差和叶部病害危害等问题。方法 以多花黄精组培苗为实验材料，采用福建地区生产上常用的2种商品基质和以泥炭土、珍珠岩、蛭石、沙、菌渣、草木灰为原料自行配制的6种基质，其中T5和T7基质中添加专用的育苗营养液。测定不同基质的理化特性，研究不同基质对多花黄精组培苗成苗率、生物学性状、生长量、壮苗指数、叶部病害发病率的影响，探索不同栽培基质理化特性与多花黄精组培苗生物学性状、生长量、壮苗指数的相关性。结果 不同的栽培基质对多花黄精组培苗的成苗率、形态指标、生长量、评价指标和叶部病害发病率影响较大，不同基质容重与多花黄精组培苗株高存在显著负相关，不同基质有机质含量同多花黄精组培苗全株鲜质量、干质量存在显著正相关。自行配制的T5基质处理的多花黄精组培苗成苗率、形态指标、壮苗指数优于其他基质，植株生长健壮，未发现叶部病害。结论 自行配制的T5基质可作为多花黄精组培苗栽培基质推广应用。

Objective To find a solution to the problems in the growth of tissue cultured seedlings of Polygonatum cyrtonema, such as low seedling survival rate, poor growth, and leaf disease. Method In this study, tissue cultured seedlings of P. cyrtonema were used as testing plants. Two types of commercially-available cultivation medium commonly used in Fujian Province, as well as six types of cultivation medium mixed using peat soil, pearlite, roseite, sand, fungi residues and plant ash were used as the raw materials; Among them, a customized nutrient solution was added into the T5 and T7 cultivation media. Besides measuring the physicochemical properties of the cultivation media mentioned above, the study focused on the evaluation of their influence on the rate of grown-up seedlings, biological characteristics, growth biomass, strength index and incidence of leaf disease of P. cyrtonema. It also attempted to find the correlation between the physicochemical properties of the cultivation media and the biological characteristics, growth biomass, as well as the strength index of tissue cultured seedlings of P. cyrtonema. Results The difference in the cultivation media had a great influence on the tissue cultured seedlings of P. cyrtonema in the rate of grown-up seedlings, biological characteristics, growth biomass, strength index and incidence of leaf disease. The difference in bulk density of the cultivation media had a notable negative correlation with the plant height of the tissue cultured seedlings of P. cyrtonema. The difference in the organic content of the cultivation media had a notable positive correlation with the fresh weight and dry weight of the tissue cultured seedlings of P. cyrtonema. Treated with the T5 cultivation medium we prepared, the tissue cultured seedlings of P. cyrtonema were in better growing condition in the rate of grown-up seedlings, morphological index, growth bomass, strength index, and no disease was found on the leaf. Conclusion The prepared T5 was worth being widely used as the cultivation medium for growth of tissue cultured seedlings of P. cyrtonema.

R282.6

福建省科技计划引导性项目（2018N0072）；福建省农业科学院药用植物创新团队项目（STIT2017-2-8）；标准化项目（FSF9-29）