Notes on some grasses XIX: systematic significance of microhairs on lodicules
De Vries (1971) and Sage and Isturiz (1974) reported that the degree of open flowering in wheat depends on the water supply of the lodicules
. The osmotic water uptake of the lodicules
from the ovary is hampered under dry conditions which impairs the swelling mechanism of the lodicules
Mutations in the si1 locus result in the conversion of lodicules
In grasses it is a matter of convenience and tradition to identify as a spikelet the combination of one or more florets (each comprising a lemma, palea, lodicules, stamens, and pistil, or in certain grasses one or more of these parts absent) with two proximally situated bracts, the glumes (sometimes one or both absent).
The presence of a palea that subtends the flower and lodicules, these together subtended by a sheathlike bract called a lemma, is the rule in the grasses.
If a palea is present directly below a flower (ignoring lodicules), and if paleas are homologous with prophylls and prophylls only develop on axillary branches, then the floret is not truly terminal.
Two questions that arise when lodicules are considered are 1) the homology of lodicules and 2) the distribution and pattern of diversification of lodicule types.
The kernels have colorless aleurones, medium long rachillas with short rachilla hairs, clasping lodicules
, and horseshoe basal markings.
Its kernels have medium length and width with clasping lodicules
, and horseshoe shape of basal markings.
Wheat florets have two lodicules
at the base of the ovary, which function to open the floret at anthesis.
The development stage of florets at which emasculation was most easily accomplished was when the lodicules
at the base of the ovary are swollen (Fig.