seed coat


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  • noun

Synonyms for seed coat

protective outer layer of seeds of flowering plants

References in periodicals archive ?
The high seed germination percentage after scarification with sand paper, cold acid treatment and boiling water, point to hard seed coat that is impermeable to water as the main cause for preventing the germination.
Kudzu has a hard, leathery seed coat and requires scarification for maximum germination (Tabor, 1949; Tsugawa et al.
To investigate the role of genes T and I (responsible for distribution of seed coat color, reviewed by Palmer et al.
This difficulty could be due to seed coat impermeability to water (Maresma & Cardenas 1981, Alvarez 1985, Betancourt 1987) but Munoz (1998) obtained germination from fresh and intact seeds when these were sown at constant 25[degrees]C and at fluctuating 25/35[degrees]C (15 and 59% respectively).
Germination of blue and maroon sweet peas can be helped by chipping a little of the seed coat, on the opposite side to the eye, with a sharp knife.
Some seeds will need soaking overnight to soften the seed coat.
I like to soak the seeds overnight to swell the seed and soften the hard seed coat.
When you catch the seeds, particularly if they're ripe--you'll know because the seeds will be dark brown--peel off the seed coat and inside you will find turquoise blue seeds.
The very thick seed coat and mucus on the surface of this plant prevents digestion of the seed and lets it slide through the gut.
This weakens the outer seed coat and helps the seed to germinate and grow.
In 15 patent claims, Proctor says he complied with patenting requirements by creating a "new, useful and non-obvious" product, producing a field bean variety with a yellow seed coat that falls within defined points of a color card similar to that used by interior decorators.
To measure eelgrass seed coat abundance in vertical profiles of sediment, we collected six cores from unvegetated sediment at each estuary and divided them into 1-cm horizontal sections.
Two broad categories of mechanisms are that these chemicals either (1) cause changes in the seed coat or other external layers, which overcome water-impermeability barriers, as is the case with heat-shock-stimulated seeds, or (2) act as internal signals and mediate germination by induction of enzymes or production of growth regulators.
The seed coat morphology of the nine species of Castilleja that occur in Texas were compared through SEM analysis to determine possible taxonomic value of seed characters.
McKersie of the University's Department of Crop Science reported at the Joint Meeting of the American and Canadian Societies of Plant Physiologists in Toronto July, 1989, that they had succeeded in coaxing small pieces of alfalfa (`explants') into developing naked embryos, which are essentially seeds without a seed coat or `artificial seeds.