【摘 要】
：
Soluble solids content(SSC)is one of the main parameters for evaluating the nutritive value of strawberry(Fragaria × ananassa),which is affected by a number of factors including genetics,environmental
【机 构】
：
College of Horticulture,Shenyang Agricultural University,Shenyang 110866,China
【出 处】
：
2015 International Conference on Fruit Quality Biology (第二届果
论文部分内容阅读
Soluble solids content(SSC)is one of the main parameters for evaluating the nutritive value of strawberry(Fragaria × ananassa),which is affected by a number of factors including genetics,environmental conditions and cultivation practices.Fertilizers are extremely important factors in determining strawberry yield and quality,but the effects of phosphorus(P)on quality of strawberry fruits have received little attention.In this study,we found that there was a positive correlation between SSC and P content in fully ripened strawberry fruits.The positive correlation between SSC and P content was first verified among 24 strawberry cultivars(including 6 Japanese cultivars,4 American cultivars,12 Chinese cultivars)with the correlation coefficient r=0.95.Furthermore it was also verified among strawberry fruits of one cultivar harvested at different dates(r=0.96)and among different parts(top,middle and bottom)of strawberry fruits(r=0.87).To provide further confirmation,plants of strawberry cultivar Yanliin solar greenhouse with the conventional cultivation management were irrigated with different concentrations of P fertilizer(4.0 mM,6.0mM or 8.0 mM phosphoric acid)once a week from the beginning of white stage and the result showed that P content and SSC in fruits from plants treated with 6.0 mM phosphoric acid increased 45.0%and 16.7%,respectively.Photosynthetic rate(Pn)and water use efficiency(WUE)of phosphoric acid treated plants increased 28.8%and 16.1%compared with the control plants.Our research lays the theoretical basis for improving the flavor of strawberry by applying P fertilizer.
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