西南林业大学学报2024，Vol.44Issue(11)：29-36,8.DOI:10.11929/j.swfu.202312035
不同种源红花荷种子萌发及幼苗生长特性研究
Study on Seed Germination and Seedling Growth Characteristics of Rhodoleia championii from Different Provenances
摘要
Abstract
Using Rhodoleia championii seeds from 4 different provenances:Haikou,Nanchang,Jiuwanshan,Ganzhou as materials,the size,vitality,germination characteristics,seedling growth characteristics and the correl-ation between the seeds and the geographical climate of the provenances were measured and analyzed to explore the differences and variation rules of the seed morphology and germination rate of different provenances.The res-ults showed that the length,width and thousand-grain mass of the seeds from Ganzhou were significantly higher than those from other provenances.The seed vigor and germination rate of the seeds from Ganzhou,Jiuwanshan and Nanchang were 98％and 86.35％respectively,which were significantly higher than those from Haikou,Hain-an.The germination seedlings from Jiuwanshan of Guangxi Province had strong growth,the number of leaves and the ratio of root to shoot were significantly higher than those from other provenances.The seedling biomass from Ganzhou,Jiangxi Province was the highest,while the seedling germination from Haikou,Hainan Province was weaker and larger in height.The R.championii seed vigor was positively correlated with parent age and latitude(north latitude),and negatively correlated with seed thickness and temperature.Germination rate was positively correlated with seed vigor,mother tree age and north latitude,and negatively correlated with temperature.Seed-ling fresh quality was negatively correlated with seed length and width and annual precipitation,and positively correlated with seed thickness,thousand-grain mass and leaf number.According to the comprehensive score of principal component analysis,the seed source germination and seedling growth performance of R.championii in Ganzhou of Jiangxi and Jiuwanshan of Guangxi were better,which was conducive to introduction and breeding.关键词
红花荷/不同种源/种子/萌发/幼苗性状/地理因子/气候因子Key words
Rhodoleia championii/different provenances/seed/germination/seedling phenotypic trait/geo-climatic factor/climatic factor分类
农业科技引用本文复制引用
李双,邹娜,张丹,袁斯齐,李子叶,甘瑶,曾泳,吴钟亲..不同种源红花荷种子萌发及幼苗生长特性研究[J].西南林业大学学报,2024,44(11):29-36,8.基金项目
国家自然科学基金项目(32060254,32260428)资助 （32060254,32260428）
江西省林业局林业科技创新专项([2021]20号)资助 （[2021]20号）
江西省重点研发计划项目(20203BBGL73227)资助 （20203BBGL73227）
江西省研究生创新专项资金(YC2023-S415)资助. （YC2023-S415）
