FEATURES OF SEEDS AND THEIR ULTRASTRUCTURE SURFACE VARIATIONS IN SOME TAXA OF GENUS Vicia (FABACEAE). | ||
| Journal of Plant Production | ||
| Article 8, Volume 27, Issue 5, May 2002, Pages 3005-3020 PDF (538.96 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2002.254192 | ||
| Author | ||
| A. M. Khattab, | ||
| Agricultural Botany Department, Fac. of Agric., Cairo Univ., Giza, Egypt. | ||
| Abstract | ||
| The morphological seed characters and seed testa structure variation of some taxa under 3 different sections of genus Vicia were studied. Scanning Electron Microscope (SEM) was used to clarify the seed testa variation patterns among the studied taxa. These taxa are; V.faba var.minor, V.faba var.equina, V.johannis var. procumbens, V.hyaeniscyamus, V.bithynica (section Faba); V.sativa var.sativa (section Vicia) and V.peregrina and V.mollis (section Peregrina). Results of seed morphology and the structure of testa by SEM show that both varieties of V. faba are more close to each other than to any taxa of other studied sections, by sharing many characters, i.e., seed colour and shape; papillae arrangement, size, density and apex shape; hilum groove colour, colour of center strip of hilum and most of hilum measurements. The three other taxa of section Faba; V. johannis var. procumbens, V. hyaeniscyamus and V. bithynica, represent similarity in some studied seed characters, i.e., seed shape; papillae arrangement, apex shape, size, density, number of papillae per unit and presence of wax and hour-glass cells on papillae apex. The results reveal also that both taxa of section Peregrina are similar to each other in many characters, i.e., seed colour, shape and measurements; papillae arrangement, size, apex shape and absence of wax and hour-glass cells on papillae apex and colour of center strip of hilum, in addition to the other hilum measurements, i.e. length, width, shape and wavy edge of hilum groove. V. sativa var. sativa was medium in its character measurements, hence it is sharing the species of section Peregrina in some characters (seed colour, and shape; papillae arrangement, apex shape, size and absence of wax and hour-glass cells on papillae apex; hilum shape and colour of center strip of hilum) and the species of section Faba in other characters (papillae arrangement, density and absence of wax on papillae apex; hilum shape, colour and wideness of center strip of hilum). | ||
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