plumule


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plu·mule

 (plo͞om′yo͞ol)
n.
1. A down feather.
2. The young shoot of a plant embryo above the cotyledons, consisting of the epicotyl and often of immature leaves.

[Latin plūmula, diminutive of plūma, feather.]

plu′mu·lose′ (plo͞om′yə-lōs′) adj.

plumule

(ˈpluːmjuːl)
n
1. (Botany) the embryonic shoot of seed-bearing plants
2. (Zoology) a down feather of young birds that persists in some adults
[C18: from Late Latin plūmula a little feather]

plu•mule

(ˈplum yul)

n.
1. the bud of the ascending axis of a plant while still in the embryo.
2. a down feather.
[1720–30; < New Latin, Latin plūmula. See plume, -ule]
plu′mu•lar (-yə lər) adj.

plu·mule

(plo͞om′yo͞ol)
The developing bud of a plant embryo, situated just below the cotyledons and often containing immature leaves. See more at germination.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.plumule - down feather of young birdsplumule - down feather of young birds; persists in some adult birds
down, down feather - soft fine feathers
References in classic literature ?
The same fact holds good with flowering plants, of which the two main divisions have been founded on characters derived from the embryo,--on the number and position of the embryonic leaves or cotyledons, and on the mode of development of the plumule and radicle.
We conclude that, in a breeding program for chilling tolerance, it is an effective strategy to select in the laboratory at 17 [degrees] C for plumule greening ability and a high index for germination rate with data for germination at 72 and 168 h.
A seed is considered for germination when both plumule and radicle have emerged to 5 mm.
(2006) investigated the effects of salinity stress on germination of Haloxylon aphyllum, Seidlitzia rosmarinus and Hammada salcornica and reported that the percentage of germination, germination rate, plumule and radical length were decreased with increasing of salinity.
The beneficial effects of osmo- and hydro- priming are associated with increase in radicle and plumule lengths.
At 15 DAF, the various components of the embryo such as scutellum, radicle, and plumule were well developed (Fig.
None of seed coating treatments improve the radicle length and leaf score; however plumule length, number of secondary roots and seedling fresh and dry weights were improved by seed coating with 2 g B kg-1 seed in both cultivars.
Statistical analysis showed that the effect of osmotic potential was significant on germination and root length at 5% level of probability, while the effect of priming duration was significant on plumule length (Table 1).
esculentus, where germination, radicle and plumule length were reduced by a range of 58.34%-97.92%, 35.84-94.33% and 1.65-87.55%, respectively.
The seeds from the towels were not allowed to germinate before being planted out in soil, to avoid damaging the radicle or plumule. There was one bag per plot, which made a total of 20 bags for the experiment.
Primed seeds had better efficiency for water absorption from growing media and it is obvious that metabolic activities in seed during germination process commence much earlier than radicle and plumule appearance, that is, emergence [12].
The beneficial effects of osmo- and hydro- primings are associated with increase in radicle and plumule lengths.