Effects of Planting Density on the Growth and Flowering of Camellia Nitidissima
To explore the effects of different planting densities on the growth and flowering of Camellia nitidissi-ma,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/hm2.The flowering rate,plant height,crown width,diameter,root biomass,stem biomass,leaf biomass,and overall plant biomass of Camellia ni-tidissima were compared under different planting densities.The effects of different planting densities on the flow-ering rate and growth of Camellia nitidissima were studied.The results showed that under a planting density of 3000 plants/hm2,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/hm2,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/hm2,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 high-er planting density can significantly increase the number of flower buds in Camellia nitidissima,while the flower-ing 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 differ-ences 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.
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