红树植物银叶树果实和种子的形态结构研究

对红树植物银叶树(H er itiera littora lis)的果实和种子进行果形因子:果重(Y)、果长(X1)、果宽(X2)、果厚(X3);果实体积;果实浮力;果实、果壳和种子重量;果壳和种子含水量的测定分析,结果表明:银叶树的果实含水量相对稳定;种子与果壳的重量比例(1.8¨1)较大;果实的浮力与果实体积存在显著正相关性(P<0.05,r=0.2995),1/3的果实具有较强的漂浮能力;银叶树果实的各项形态结构指标相对稳定;果重与果厚达到极显著相关(P<0.01,r=0.3557),与果宽达到显著相关(P<0.05,r=0.3186),与果长无显著相关关系(P>0.05,r=-0.0016),果重与果形因子的线性回归模型为:Y=0.388X2 0.4X3-14.165。

Studies on Shape and Structure of Mangrove Heritiera littoralis Fruits and Seeds

The shape of fruits and seeds of mangrove Heritiera littoralis were studied in this paper, including fruit weight (Y), fruit length (X₁), fruit width (X₂), fruit thickness (X₃), fruit volume, fruit floatage, the weight of fruit, seedcase and seed, the water content of seedcase and seed.The results indicate that the water content of fruit was comparatively stable.The weight proportion (1.8:1) between seed and seedcase was remarkable.There was positive significant correlation between fruit flotage and fruit volume (P<0.05, r=0.2995).1/3 fruits floating capability were better.The shape indexes of H.littoralis fruit were comparatively stable.The correlation was very significant between fruit weight and fruit thickness (P<0.01, r=0.3557), significant with fruit width (P<0.05, r=0.3186), and insignificant with fruit length (P>0.05, r=-0.0016).The linear regression model was Y=0.388X₂+0.4X₃-14.165.