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Bulletin of Botanical Research ›› 2020, Vol. 40 ›› Issue (5): 666-672.doi: 10.7525/j.issn.1673-5102.2020.05.004

• Research Report • Previous Articles    

Effect of Trichoderma harzianum T6 on Rosa chinensis ‘Shi-Jie-Mei’ Growth

DENG Jun-Jie, ABDUL MAJEED BALOCH, HOU Xue-Yue, LI Jia-Zhe, CHA Xin-You, ZHANG Rong-Shu   

  1. College of Landscape Architecture, Northeast Forestry University, Harbin 150040
  • Received:2019-12-09 Published:2020-07-10
  • Supported by:
    National Natural Science Foundation of China(31370642);Joint Guidance(Lian-He-Yin-Dao) project of the Natural Science Foundation of Heilongjiang Province(LH2019C015)

Abstract: In order to develop the biocontrol fertilizer of Trichoderma for promoting growth of Rosa chinensis ‘Shi-Jie-Mei’, with Trichoderma harzianum T6 isolated and identified in our laboratory, the effects of Trichoderma T6 on the sprout of hard branches, seedling growth, the activity of defendant enzyme and the levels of endogenous hormone of rose were analyzed. T.harzianum T6 significantly increased the germination rate of hard branches and the length of the branches of rose seedlings, 1.4 and 1.82 times that of the control group. The dry weight and the water content in branches and leaves of rose were significantly increased. The activity of SOD, POD, CAT and the levels of hormone, including IAA, GA3, ZT, ABA, SA and JA in the leaves, were all significantly increased. The results displayed that T.harzianum T6 had the action of growing promotion on rose and enhancing its resistance, which would provide the theoretical basis for the development of biological fertilizer for rose growth promotion.

Key words: Trichoderma harzianum T6, Rosa chinensis ‘Shi-Jie-Mei’, growth promotion, defense enzyme activity, endogenous hormone level

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