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通过调查台农17号、无刺卡因和金菠萝等3个品种菠萝果柄开裂情况,结合菠萝D叶和果柄养分分析,及对2013年种植台农17号地块的各茬植株果柄裂柄率和当季生育期活动积温的统计,分析了台农17号裂柄的主要影响因素。结果表明,不同菠萝品种间裂柄率差异显著,台农17号裂柄率最高;裂柄植株D叶及果柄磷、钾含量显著低于正常植株,钙含量高于正常植株,氮、镁含量差异不显著;添加外源钾、钙可极显著降低菠萝裂柄率,添加钙的降低效果高于添加钾;菠萝裂柄率与活动积温呈明显的负相关关系。
By investigating the cracking of pineapple stalks in three varieties of Tai-Nong 17, No-Squash and Golden Pineapple, combined with the nutrient analysis of D-leaf and stalk of Pineapple, The rate of shank lysis and the accumulated temperature during the growth period were analyzed. The main influencing factors of rupture of Tai Nong 17 were analyzed. The results showed that there were significant differences in the percentage of lysis between different pineapple varieties, and that of Tai Nong 17 was the highest. The contents of phosphorus and potassium in D leaf and stalk of the cracked stem were significantly lower than those of the normal plants, and the content of calcium was higher than that of the normal plants There was no significant difference between the two treatments. Adding exogenous potassium and calcium could significantly reduce the rate of lysis of pineapple, the effect of adding calcium was higher than that of potassium. The rate of lysis of pineapple was negatively correlated with the active accumulated temperature.