leaf sheath


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Related to leaf sheath: ligules

leaf sheath

the part at the bottom of a leaf that surrounds a stem, as in grasses.
References in periodicals archive ?
A PCR-based method to detect Sclerotium hydrophilum in infected rice leaf sheaths.
a) Debris deposited by ants around the base of Prosthechea cochleata where orchid mealybugs were concealed; (b) removal of an orchid leaf sheath on a new shoot reveals a large population of mealybugs on P.
Two variables were employed to evaluate the architectonic characteristics of the plants: the angle between the two fully developed central leaves, measured with the help of a protractor using the central axis of the leaves, and the height of the plant, from the leaf sheath to the tip of the highest leaf.
Leaf sheath moisture for both farms, was equal nearly and there was not any significant difference between them (Table 3).
After the abovementioned parameters were determined, the effective degradability of DM, NDF, and ADF in whole plant, leaf blade, leaf sheath, stem rind, stem pith, stem node, ear husk, and tassel of corn stover were calculated using the equation described by 0rskov and McDonald (1979) as follows:
The Na/K ratio in leaf blade and leaf sheath was higher when high salinity water was used continuously (T5), but no significant differences were observed among treatments (Table 3).
pauciflora that we have examined have dense pubescence, particularly on the lower leaf sheaths (some of these had been misidentified as var.
Photoassimilates in the leaf sheath and stems can be a source of carbohydrates in the filling of rice grains; but little information is available on the distribution and mobilization of these assimilates under water stress applied during the vegetative phase.
The fiber, composed of long slim cells that form part of the leafs supporting structure, is harvested from the leaf sheath around the trunk of the plant which can grow upwards of 6 meters in height and has an average life span of around 10 years.
Booting is when the wheat head is about to emerge from the top leaf sheath of the stem.
They develop at the crown and emerge from within the basal leaf sheath of the old stem.
The variables included fresh forage production (PFV), dry forage (PMS), ear and husk (PET), ear (PE), husk (PTO), stalk (PTA), leaf sheath (PVA) and leaves (PHO), with a completely random block experimental design, two replicates and a density of 85 000 plants [ha.