Brassica属種子の形態的特性に就いて

概要

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This investigation was carried out to know the morphological characters of Brassica seeds in relation to their classification and identification. The results obtained are as follows. 1. Form and color of the seeds Though there are variations among indivduals due to their stages of maturatuation and environment under which they matured, form and color of seed are useful charcteristics of Brassica seeds for their identification (Fig. 1). 2. Size of the seeds It was found that species or varieties can be distinguished by the size of seed in majority of cases, and there is distinct correlation between size of the seed and size of plant or date of bolting. 3. Network on the seed surface There are three of networks: distinct type, indistinct type and intermediate type. This character is specific to species or varieties and useful for idenification of seeds (Fig. 2). 4. Anatomical features of seed coat Anatomical observations revealed that there were four types in cross sectional features of Brassica seed coat: A, B, Ac, and Bc types (Fig. 3). Those types were also specific for species or varieties.
園芸学会の論文