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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Antennal flagellum strongly crenulate on posterior surface, with deep concavity between flagellomeres; mandible not distinctly broad apically; posterior hypostomal carina unmodified, without a tooth; protibial spur with apex of rachis very short (less than one-third of malus length), with less than five elongate branches (not including apical portion of rachis); S3-S5 with distal margins distinctly convex; S5 with midapical row of spines medially projecting.
All productive variables, except for bunch length and rachis mass, were higher in the 2016 harvest, mainly explained by the better meteorological conditions occurred in this harvest, mainly at the final maturation stage of grapes, where lower rainfall was observed compared to the 2015 harvest (Figure 1).
2) was noticed for number of leaves-NL with number of leaflets-NLL (0.0031), rachis length-RL (0.1037), leaflet width-LLW (0.0143), total leaf dry weight-TLDW (0.1143) and vegetative dry matter-VDM (0.0297).
According to the results, the evaluated variables: abscission, berry resistance to abscission, rachis browning index, epidermis color (L*, a*, b*), and tartaric acid showed no significant difference between fruits harvested and stored at 0 [degrees]C with 90% RH and fruits exposed to a temperature of 35 [degrees]C and RH of 40% for 8 h prior to cold storage.
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).
The species can easily be distinguished from the other species of the area by viscous branches, leaves with 18-20 pairs of leaflets, 1-3 extra floral nectaries localized on the rachis between the proximal pairs to leaflets and dry plane-compressed fruits.
[35], orache [35], Jerusalem artichoke [35], Stipagrostis pungens [36], Cannabis sativa [37], date palm rachis, and Posidonia oceanica [26].
At inspection, straight cervical rachis was evident; it was associated with severe limitation of range of motion (ROM); no pain was reported during active and passive mobilization at that level.
In these species, disarticulation may (1) occur above the insertion of the prophyll, with the bract, the prophyll and the hipopodium remaining on the rachis (Alinula, Courtoisina, Kyllinga, Queenslandiella, Remirea and Sphaero cyperus) (Fig.
This could be associated with a compensatory cervical hyperlordosis as a response to the arthrokinematic rachis equilibrium; however, it is now possible to clarify that lumbar hyperlordosis in women is more apparent than real because it is mainly conditioned by the high muscle and gluteal fat mass on the hip [23].
Rachis branches with spikelets remaining were regarded as surviving; otherwise, the aborted branches were counted (Kato et al., 2006).
demonstrated that [H.sub.2]S effectively alleviates postharvest senescence of grapes by preventing rachis browning and berry rotting, thus maintaining grape firmness, soluble solids, and titratable acidity during postharvest storage.