不同种植密度对金花茶生长和开花的影响  

Effects of Planting Density on the Growth and Flowering of Camellia Nitidissima

作　　者：覃智敏 Qin Zhimin(Chongzuo City Guangxi Xidaming Mountain Nature Reserve Management Center(Fenghuang Mountain Forest Farm,Chongzuo City),Chongzuo 530114,Guangxi,China)

机构地区：[1]崇左市广西西大明山自治区级自然保护区管理中心(崇左市凤凰山林场),广西崇左532199

出　　处：《绿色科技》2024年第5期179-182,共4页Journal of Green Science and Technology

摘　　要：为探究不同种植密度对金花茶生长和开花的影响。以广西崇左市凤凰山林场为试验地点,分别设置1500、2000、2500、3000株/hm^(2)4个不同种植密度,比较了不同种植密度下金花茶的开花率以及株高、冠幅、地径、根部生物量、茎部生物量、叶部生物量和整株生物量的生长状况,研究了不同种植密度对金花茶开花率和生长的影响。结果表明:3000株/hm^(2)种植密度下,金花茶的花苞数最高,为3.65个,金花茶的开花率在2500株/hm^(2)的种植密度下最高,为28.42%;金花茶的株高、冠幅、地径、根部生物量、茎部生物量、叶部生物量和整株生物量的年均生长量均在种植密度为2500株/hm^(2)时最高,分别为21.35 cm、0.12 cm、0.44 cm、176.20 g/株、222.76 g/株、75.23 g/株和495.28 g/株。较高的种植密度可以显著增加金花茶的花苞数,而开花率随着种植密度的不断增加呈先升高后下降的趋势;株高、冠幅和地径受种植密度的影响程度较小,差异不明显。而根部生物量、茎部生物量、叶部生物量和整株生物量受种植密度的影响较为显著,随着种植密度的增加呈先升高后降低的趋势。研究结果可为金花茶的科学种植提供理论依据。To explore the effects of different planting densities on the growth and flowering of Camellia nitidissima,this study used Fenghuang Mountain Forest Farm in Chongzuo City,Guangxi Province as the experimental site,and set up four different planting densities of 1500,2000,2500,and 3000 plants/hm^(2).The flowering rate,plant height,crown width,diameter,root biomass,stem biomass,leaf biomass,and overall plant biomass of Camellia nitidissima were compared under different planting densities.The effects of different planting densities on the flowering rate and growth of Camellia nitidissima were studied.The results showed that under a planting density of 3000 plants/hm^(2),the number of flower buds of Camellia nitidissima was the highest,at 3.65,and the flowering rate of nitidissima was the highest at a planting density of 2500 plants/hm^(2),at 28.42%;The annual growth rates of plant height,crown width,ground diameter,root biomass,stem biomass,leaf biomass,and whole plant biomass of Camellia nitidissima were the highest at a planting density of 2500 plants/hm^(2),with values of 21.35 cm,0.12 cm,0.44 cm,176.20 g/plant,222.76 g/plant,75.23 g/plant,and 495.28 g/plant,respectively.The results show that higher planting density can significantly increase the number of flower buds in Camellia nitidissima,while the flowering rate shows a trend of first increasing and then decreasing with the continuous increase of planting density;The influence of planting density on plant height,crown width,and ground diameter is relatively small,and the differences are not significant.The root biomass,stem biomass,leaf biomass,and whole plant biomass are significantly affected by planting density,showing a trend of first increasing and then decreasing with the increase of planting density.This study provides a theoretical basis for the scientific cultivation of Camellia nitidissima.

关 键 词：金花茶 种植密度 开花率 生长 

分 类 号：S685[农业科学—观赏园艺]