热带作物学报2012，Vol.33Issue(11)：1954-1959,6.DOI:10.3969/j.issn.1000-2561.2012.11.007
盐碱环境下火龙果生长过程中果实主要营养元素含量变化
The Variation of Main Nutrient Element Contents in the Fruit of Pitaya during the Development under Saline Conditions
摘要
Abstract
In this study, the variation of N, P, K, Ca, Mg and Na contents in Pitaya fniit were observed and analyzed during the development stages under saline conditions. The results revealed the contents of N, P, K, and Mg all displayed a ' inverted N' variation, while the Ca content showed a unilateral down trend and the Na content showed a comparatively large fluctuation. In seven different development stages of Pitaya fruit, the variation coefficient of N, P, K, Ca, Mg and Na were from 27.60% to 43.52%. The maximum contents of N, P, K, Ca, Mg and Na per single Pitaya fruit all appeared at 30 d after flowering, were 682.22、 83.11、 993.92、 55.73、 107.04 and 11.94 mg respectively. The accumulation rate of N, P, K, Ca, Mg and Na increased faster during 6~15 d after flowering and 26~30 d after flowering. Our data provided clues for guiding effective cultivation and utilization of Pitaya in saline soils.关键词
盐碱环境/火龙果/生长/营养元素/动态变化Key words
Saline habitats/ Pitaya/ Development/ Nutrient element/ Dynamic change分类
农业科技引用本文复制引用
杨道富,林旗华,谢鸿根,蔡秋英,陈源,卓玉辉..盐碱环境下火龙果生长过程中果实主要营养元素含量变化[J].热带作物学报,2012,33(11):1954-1959,6.基金项目
科技部科技基础性工作专项(No.2007FY110500-04)——福建省沿海地区抗旱耐盐碱优异性状农作物种质资源调查. （No.2007FY110500-04）
