摘要
对银杏叶营养元素的季节性变化进行了研究，结果表明：银杏雌雄株无性系叶中Ｎ、Ｐ、Ｋ、Ｃａ、Ｍｇ、Ｂ、Ｆｅ、Ｚｎ、Ｍｎ、Ｃｕ的含量随物候期呈规律性变化。雌株与雄株无性系叶片中Ｎ、Ｐ、Ｋ、Ｂ、Ｆｅ、Ｚｎ的含量变化有明显差异（Ｐ≤０．０５），Ｃａ、Ｍｇ、Ｍｎ、Ｃｕ的变化基本一致。大果无性系对Ｐ、Ｋ、Ｂ、Ｚｎ的吸收量最高而Ｃａ的含量最低，不同无性系间（大、中、小果）Ｎ、Ｍｇ、Ｆｅ、Ｍｎ、Ｃｕ则没有显著差异（Ｐ≥０．０５）。
This paper deals with the study of seasonal variations on leaf nutrient concentrations in Ginkgo biloba L. The result has indicated that concentrations of N,P,K,Ca,Mg,B,Fe,Zn,Mn,Cu in the leaves of male and female trees varied throughout the growing season. Leaf nutrient concentrations of N,P,K,B,Fe,Zn differ significantly between male and female trees in three years ( P ≤0.05),but the concentrations of Ca,Mg,Mn,Cu do not differ significantly. The big fruit female clone has had the best ability of absobing P,K,B,Zn and the worst of absorbing Ca,but their seasonal variations of the concentration of N, Mg,Fe,Mn,Cu are similar amomg the other female clones.
出处
《林业科学研究》
CSCD
北大核心
1996年第2期133-137,共5页
Forest Research
关键词
银杏叶
营养成分
季节变化
Ginkgo biloba leaf, nutrient concentration, seasonal variation
