seed coat

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seed coat

[′sēd ‚kōt]
(botany)
The envelope which encloses the seed except for a tiny pore, the micropyle.
References in periodicals archive ?
[8] observed little change in the phenolic profiles of soaked faba beans and attributed this to the fact that soaking at room temperatures was not enough to disrupt the physicochemical structure of the seed coats that house many antioxidant compounds.
The effect of crude extracts from cultivar BR-1 (aerial part, root, seed, and seed coat) was evaluated on the germination and growth of hypocotyls and rootlets of L.
The difference in germination pattern of different coloured seeds could be related to the difference in seed maturity, which might affect seed coat structure and the balance between different hormones.
"Not many farmers are using seed coats as a management tool yet, because the coating technology is not widely available," says Gesch.
Although hard seed coat improves the survival of seeds in the soil especially in adverse environmental conditions and helps to avoid extinction of species in nature, it may prevent use of plant cultivars or wild-type relatives for agricultural or breeding purposes [20,21].
Table 1: Morphological indicators in the seed coats of mature squash seeds with four different genotypes
Cracks in the palisade cuticle of soybean seed coats correlate with their permeability to water.
The most common exogenous type of seed dormancy is physical dormancy, or seed coat imposed that can be the result of seed coat impermeability to water or chemicals present in the seed coat.
The results of their work suggest that there is an avenue for adding seed coats to peanut products, which would increase their antioxidant content while causing minimum changes in flavor.
This type of dormancy is mainly related to physical properties of the seed coat. So this type of seed dormancy is controlled by external factors [22,26].