SEED CHARACTERS OF GRAMINECIOUS WEEDS IN DAMIETTA

29-01-2020 10:02

Seed characters of 29 plant species belonging to 27 genera of the family

poaceae in Damietta district were studied. Qualitative traits such as seed dispersal,

seed shape, seed outline and seed texture have been examined. Also, quantitative

traits hadbeen measured such as seed mass, seed width and seed length using

vernier caliper in mm. Seeds of 15 species were germinated without special pre-

treatments, 14 species germinated with special pre-treatments such as KNO3, boiling

water & H2SO4. Results indicated that small seeded species were generally wind

dispersed and more widely distributed. The relationships between seed mass,

dispersal mode and plant distribution in different habitats were significant. The

findings of this study support the strategy for control of weeds by understanding seed

characters of graminecious weeds in the study area.

Keywords: dispersal mode, grasses, seed germination , seed mass, weed

distribution

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