Effect of Exogenous Hormones and Different Fertilizations onFruit-setting Rate of Xanthoceras sorbifolium
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摘要: 2015 年5 月,在辽宁省建平县选取30 年生的文冠果(Xanthoceras sorbifolium)花枝,在花期喷施不同浓度的不同外源激素,2016 年4 月喷施外源激素和不同配比施肥,试验对其坐果率的影响。结果表明,在文冠果盛花期,分别喷施浓度为20 mg?kg-1 的2,4-二氯苯氧乙酸(2,4-D)和200 mg?kg-1 的赤霉素(GA3)能显著地提高文冠果的坐果率,且坐果率达到最高,分别为83.44%和84.58%。在配比施肥试验中,N,P,K 比例水平为2:1:2,结合喷施200 mg?kg-1 的GA3 的处理,其平均坐果率达到最高值,为93.16%;在配比施肥试验的14 个处理中,5个处理的平均坐果率较高,达81.57% ~ 93.16%。Abstract: Experiments were conducted on spraying different hormones with different concentrations on flowering braches of 30-year Xanthocerassorbifolium from May 2015, in Jianping, Liaoning province, and as well as spraying GA3 combined with fertilizing different ratio of N, P and K fromApril 2016. The results showed that spraying 20mg/kg of 2,4-dichlorphenoxyacetic acid (2,4-D) and 200mg/kg of gibberellins (GA3) duringfull-blooming stage had the best effect of fruit-setting rate, which was topped respectively to 83.44% and 84.58%. The average fruit-setting ratereached 93.16% of the treatment with N, P and K ratio of 2:1:2, combined with spraying 200 mg/kg of GA3. The later experiment demonstrated thatmean fruit-setting rate of 5 treatments among total 14 ones was 81.57%-93.16.
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Keywords:
- Xanthoceras sorbifolium /
- fruit setting rate /
- 2,4-D /
- GA3 /
- different ratio of N,P,K
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