rachis


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Related to rachis: petiolule

rachis

[′rā·kəs]
(anatomy)
The vertebral column.
(biology)
An axial structure such as the axis of an inflorescence, the central petiole of a compound leaf, or the central cord of an ovary in Nematoda.
References in periodicals archive ?
Caption: Symptoms of Pestalotiopsis include early fruit drop (seen in the above left photo on Norton vines in Missouri) and rachis reddening and berry shrivel (pictured above right on Cabernet Sauvignon in Maryland).
petiole 7-23 mm long, smaller than the rachis; 1 extrafloral nectary, green-vinaceous, sessile, pyramidal, 1-3 mm long, located on the rachis, between the proximal pair of leaflets; rachis 13-15 mm long; leaflets discolorous, 2 pairs, semisucculent, adaxial surface pilose, abaxial surface tomentose, obovate to elliptic, 21-88 X 9-41 mm, apex rounded, base assimetric, venation penninervous, midrib excentric.
Determination of Chlorophyll and Carotenoid Contents in Grape Rachis and Pulp.
It reveals the number, proportion and relative orientation of rachis layers is not fixed as previously thought but varies with flight style.
For example in Pb2000 mutants (Table 2), significant positive correlations were observed for plant height with rachis length (0.
Folia, 12-20 cm, contemporanea; pseudo petiolo longo 64-75 cm, cum spinis curvis in tota margine; spinae lignosae, longae ad 2 cm; rachis 160-194 longa, pauca curvata, utraque latus continens 71-90 pinnas; pinnae rigidae, uniforme distribuitae longe rachidis et in uno plano dispositae.
The infected palms showed symptoms: front malformation, scratches and furrows on the leaf rachis, absence of leaflets, little leaves, 'v' cut on leaf base, rachis, flower stalks and spathe, leaf drying, leaf whitening, inflorescence without flowers, inflorescence drying, fruit bunch braking, crown bending and dwarfing followed by the death of terminal bud.
Petiole and rachis with very few to no prickles, leaflet surface rather flat, margins with small scattered serrations, especially in proximal end, leaflet tip acute 4 4.
The RACHIS Recoil System for full- and compact-frame Glock GEN 4 pistols is now available.
Mihamadawi statements stirred reactions against him that denounced rachis inclinations of the call.