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《Journal of Gansu Agricultural University》 2010-05
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Effects of pinching on the growth and flowering of Prunus humilis seedlings

LIU Xian-chen(Jilin Academy of Agricultural Science and Technology,Jilin 132101,China)  
In order to study the effects of pinching on the growth and flowering of Prunus humilis seedlings,Prunus humilis seedlings,which were all planted and transplanted in the same year,were pinched at height of 20cm,30cm and 40cm respectively.The results shows:trunk topping can promote the second branch germination of Prunus humilis seedlings effectively.As second branch producing,the number of new branches and leaves of plant clump are significantly increased,and the aims of promoting the base width growth of Prunus humilis seedlings,enlarging the canopy width and flowering at the same year are realized.The effects is the best when pinching height is 30cm,and the second branch amount,leaf amount,canopy width,base width and the amount of flower bud splitting of which are all better than those of 20cm and 40cm.However,the different pinching height can't produce remarkable difference on the height and the content of chlorophyll of Prunus humilis seedlings.
【Fund】: 吉林省科技厅自然科学基金(20080238)
【CateGory Index】: S662.5
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