关键词: 番石榴果实, 生长, 营养元素, 含量

Abstract: Growth and changes of nutrient elements of "pearl" guava fruits during flowering in autumn season were investigated. A rapid fruit growth from 0 to 65 days after flowering, then a stunted growth until 85 days, and a rapid enlargement during the later growth were observed. The growth rate of fruits exhibited double ‘S’ logistic curve. N, P, K, Ca, Mg concentrations of fruits decreased with the fruit growth, but more and more in absorbing capacity, especially with N, K elements.

Key words: guava fruit, growth, nutrient element, concentration