Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (25): 125-129.doi: 10.11924/j.issn.1000-6850.2013-0211

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Effect of ABA and PP333 on Frost Resistance of Cymbidium faberi Seedlings

  

  • Received:2013-01-21 Revised:2013-02-15 Online:2013-09-05 Published:2013-09-05

Abstract: In order to research the effect of ABA and PP333 on frost resistance of Cymbidium faberi seedlings, the effect of different concentrations of exogenous ABA and PP333 on cold physiological index of Cymbidium faberi ‘Dayipin’ seedlings were studied under the regime of day temperature (5±0.5)℃/night temperature(0±0.5)℃ by spraying on leaves. The results showed that: Both the exogenous substance treatments decreased the relative conductance rate and increased the contents of Pro, soluble sugars and the activity of POD. The treatment of 15 mg/L and 20 mg/L ABA had the best effect on increasing the frost resistance of Cymbidium faberi seedlings.

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