高原农业2026，Vol.10Issue(4)：493-501,9.DOI:10.19707/j.cnki.jpa.2026.04.009
基质对长瓣瑞香出苗及幼苗生长的影响
Effects of Seedling Substrates on the Growth and Rooting of Daphne longilobata Seedlings
摘要
Abstract
This study aimed to identify the optimal substrate and its mixing ratio for the growth of Daphne longilobata seedlings,thereby providing a basis for cultivating high-quality,robust seedlings.Using Daphne longilobata as the test material and humus,garden soil,coconut coir,and perlite as cultivation substrates,the experiment investigated the effects of different substrates and their ratios on seedling growth,root development,and seedling quality.The results showed:(1)Regarding emergence and growth,T1(humus)achieved the highest values in plant height,ground diameter,leaf water content,and above-ground biomass,measuring 13.28 cm,4.77 mm,70.77%,and 0.621 g,respectively;T2(garden soil)showed the highest emergence rate and stem water content,at 83%and 74.43%,respectively;T4(perlite:humus:garden soil=1:1:1)had the greatest specific leaf weight at 25.93 g/m².(2)For rooting parameters,T1(humus)showed the maximum total root length,root surface area,root volume,and below-ground biomass,reaching 516.7 cm,123.6 cm²,2.54 cm³,and 0.606 g,respectively;T3(coconut coir)recorded the highest specific root length at 2,030 cm/g.(3)Based on the calculated seedling quality indices,T1 had the highest index(0.502),followed by T2(0.377),while the indices for seedlings grown in the other four substrates were all below 0.25.In conclusion,humus as a sole substrate significantly enhanced the morphological growth,physiological performance,and seedling quality of Daphne longilobata.These findings indicate that Daphne longilobata responds favorably to nutrient-rich growing media and suggest that humus is a highly effective substrate for cultivating robust seedlings of this species.关键词
长瓣瑞香/基质/生长/生根/苗木质量Key words
Daphne longilobata/Seedling substrate/Growth/Rooting/Seedling quality分类
农业科技引用本文复制引用
张树人,周敬祥,夏慧,解纯岩,赖杰,辛福梅..基质对长瓣瑞香出苗及幼苗生长的影响[J].高原农业,2026,10(4):493-501,9.基金项目
西藏自治区科技计划项目(XZ202401YD0026) （XZ202401YD0026）
西藏农牧学院林学博士点一期(533325001)林芝市林下科技园项目 （533325001）
林芝市林草局林木良种培育. （）
