【摘要】 本文对黑穗醋栗果实进行了纵横径、体积、鲜重及果实形态方面的研完。其结果是:果实纵横径变化曲线呈双S型,果实的体积、重量变化曲线与果实纵横径变化基本相同。果实形态上的变化初期纵径大于横径,呈椭圆形,后期变化到呈扁圆形。果实构造可分为果壁和果心两部分。外果壁有2～3层细胞排列,紧密规整,中部细胞明显增大,内果壁3～4层细胞,较小,排列较规整。果心一部分受精的胚珠发育成种子,未受精的胚珠逐渐退化消失。更多还原

【Abstract】 This paper studied the diameters in length and breadth, volume and fresh weight and morphology and histology of blackcurrant (Ribes nigrum L.) fruit. The results indicated that the changing curve of fruit diameters in length and breadth showed a double "S".The changing curves in the volume and the weight of fruit were basieally the same as those of the diameters in length and breadth of fruit. At the beginning, the outer formation of fruit was in the shape of ellipsoid, finally, it appeared slight oblate in shape, the construction of the fruit could be divided into two parts, fruit wall and fruit core. The outer wall of fruit had 2～3 layers of cell which were arranged compactly and regularly, the middle cells were enlarged obviously and the inner wall of fruit had 3～4 layers of cell which were smaller and arranged more compact than the outer wail of fruit. Part of fertilized placenta in the fruit core formed seeds but a few of them were not fertilized and degenerated.更多还原