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.
Improved seedling vigor and plant growth in treatments with seed priming (SP) of MLE, foliar spray (F) and their combination (SP+F) (Table 2) may be owed to the enhanced mobilization of germination related metabolites/inorganic solutes present in MLE (Table 1) to the growing plumule or the increase in amylase activity and reducing sugars of primed seeds (Afzal et al.
Heterosis brings gains in grain yield, earlier flowering, greater number of leaves, taller plants, more tillers and panicles per plant, heavier seeds, more seeds per panicle (Acquaah, 2012), a faster seedling emergence rate, more vigourous seedlings and a higher plumule dry weight (Yu & Tuinstra, 2001; Cisneros-Lopez, Mendoza-Onofre, Mora-Aguilera, Cordova-Tellez, & Livera-Munoz, 2007; Leon-Velasco et al.
The reduction in germination (%), delayed germination, decrease in radical and plumule growth and dry matter weight of maize and wheat seedlings may be linked to suppressive influences of allelopathic compounds present in sunflower which possibly modified cell division, physiological functions and absorption capacity of test plants seedlings [5].
Phytotoxicity tests (Ghani, 1998; Ayeni and Yahaya, 2010) were performed by measuring the mean lengths of plumule and radicle by selecting five plants at random.
Effect of biopriming of chickpea seeds on emergence, plumule and radical length in vitro
The plumule of the embryonic axis is differentiated in two leaf primordia, constituted by the first and second leaf sheath (Figure 4--vi and vii).
Bakhtyary and Hamedy [9] showed that in studying the effects of salinity stress on kidney beans, increasing salinity resulted to signifisant decreasing effect on rate and percentage of germination and also decreased the vegetative traits such as; radicle and plumule length, fresh weight of radicle and plumule, and plumule dry weight.
Its burning in the fields can reduce germination, biomass growth, plumule and radical length of different crops.
Root: plumule ratio was calculated as dry weight for roots/dry weight for top of plant.