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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (25): 154-158.doi: 10.11924/j.issn.1000-6850.2014-1687

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Chilling investigation and analysis on characteristics of different pineapple varieties in Jiangmen, Guangdong province

  

  • Received:2014-06-16 Revised:2014-07-19 Online:2014-09-05 Published:2014-09-05

Abstract: Investigation of chilling damage on different pineapple varieties was conducted after the cold stress in 2013 in Jiangmen. The experimental materials included:‘MD- 2’,‘gold’,‘Comte de Parisand’and‘Smooth Cayenne’. The difference of cold-resistant characteristics of these cultivars was identified based on chilling damage degree. The results showed that the cold weather caused chilling damage to all cultivars, the chilling damage degree of‘MD- 2’and‘gold’were lower than that of the other two cultivars. The coldresistant characteristics of four pineapple varieties presented as‘MD- 2’>‘Smooth Cayenne’>‘gold’>‘Comte de Paris’. The chlorophyll fluorescence parameters were important to crop yield, therefore, the field experiment was conducted in order to compare them. The values of Fo and Fm of‘MD-2’were higher than those of‘Comte de Paris’. There was no significant difference among the values of Fv/Fm of the four cultivars.‘MD- 2’and‘gold’could be cultivated well in Jiangmen. The chilling damage degree and chlorophyll fluorescence parameters could provide references for cold-resistant varieties selection.