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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (16): 72-76.doi: 10.11924/j.issn.1000-6850.casb15100113

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Improving Fruit Setting Rate by Artificial Shooting of Myrica rubra ‘Dongkui’

Yan Liju1, Ma Zhifang2, Lin Gongbiao3, Zhu Xiaoting1, Jiang Xin1   

  1. (1Linhai Specialty Technology Promotion Station, Linhai Zhejiang 317000;2The Agricultural Service Center of Youxi Town, Linhai Zhejiang 317025;3Comprehensive Agricultural Service Centre of Baishuiyang Town, Linhai Zhejiang 317031)
  • Received:2015-10-26 Revised:2016-05-18 Accepted:2016-01-22 Online:2016-06-17 Published:2016-06-17

Abstract: To study the effect of artificial shooting on fruit setting rate of Myrica rubra ‘Dongkui’, the dynamic rules of fruit setting and flower and fruit dropping of different flower branches were investigated in different periods from 2013. Then the effects of artificial shooting on fruit retention were studied. The results showed that the highest rate of fruit setting of 8.8%-9.16% was obtained on spring shoots, followed by the spring-summer secondary shoot with an average fruit setting rate of 7.02%-8.37%, and summer shoots with an average fruit setting rate of 2.22%-6.67%, and the lowest was autumn shoots with a setting rate of only 0-2.06%. The flower and fruit drop peaked half month after the initiation of flower drop, with a drop rate of 80.6%-100%. Artificial shooting (top removal and shoot erasing) of Myrica rubra ‘Dongkui’ could greatly improve its fruit setting rate, among which pinching (preserving basal part with a length of 0.3 cm) had the highest fruit setting rate of 16.338%, followed by those with a total removal of young sprouts of the flower branch, which had a fruit setting rate of 12.25%, all were significantly higher than that of control (2.18%). The study revealed that the length of new shoot and fruit setting rate were negatively correlated, and top removal and shoot erasing showed significant effect on the fruit retention of Myrica rubra ‘Dongkui’ on early commissioning period, and the technique was suitable for production.