«HEXARCH» தொடர்புடைய ஆங்கிலம் புத்தகங்கள்
பின்வரும் புத்தக விவரத்தொகுப்புத் தேர்ந்தெடுப்பில்
hexarch இன் பயன்பாட்டைக் கண்டறியுங்கள்.
hexarch தொடர்பான புத்தகங்கள் மற்றும் ஆங்கிலம் இலக்கியத்தில் அதன் பயன்பாட்டுச் சூழலை வழங்குவதற்கு அதிலிருந்து பெறப்பட்ட சுருக்கமான சாரங்களைத் தொடர்புபடுத்துகின்றன.
Roots are usually hexarch (Figures 54.395, 54.396 and 54.397). Many of them
are shoot-borne roots, as explained in Chapter 24. Figure 54.395 Young root of l.
glandulifera with hexarch xylem arrangement. c54f395 Figure 54.396 Young root
...
Hansjoerg Kraehmer, Peter Baur,
2013
VC XE AC a b Plate 3.2 Transverse section of a root exhibiting anomalous
cambia development (a), and the presence of a hexarch stele (b) in the leading
sweetpotato variety in Israel, 'Georgia-Jet'. VC – vascular cambium; XE – xylem ...
Gad Loebenstein, G. Thottappilly,
2009
3
Paleobotany and the Evolution of Plants
In these specimens of B. dawsoni described by Taylor (1969), where the vascular
strand of the cone axis is hexarch, a massive vascular bundle departs at the
nodal level from each of the six arms. This trifurcates immediately in the
horizontal ...
Wilson Nichols Stewart,
1993
4
Transactions of the Linnean Society of London: Botany. ...
Bumelia temw . . . . . . . . hexarch, do. do. absent. fleshy, petiolate, very small and
polyarch. hypogeal. slight“ scattered. Palaquium petiolarc . . . . hexarch, hexarch, '
hexarch, present. hemispherical, petio- ? i do. heptarch. heptarch.i hcptflrcll, ...
Linnean Society of London,
1913
5
Competition Science Vision
Vascular bundles Vary from 2 to 6, i.e., diarch to hexarch More than six i.e.,
Polyarch. 2. Pith Reduce or absent Large or well developed. 3. Pericycle Gives
rise to lateral roots, cambium and cork Give rise to lateral roots only. cambium 4.
6
Papers on Plant Growth and Development
Fig. 9. Section showing mature tissues of the triarch vascular tissue arrangement
of the original root with xylem strands marked *, y and z. — Fig. 10. Section cut at
305 S distal to fig. 9 showing symmetrical hexarch vascular tissue arrangement.
Watson M. Laetsch, Robert E. Cleland,
1967
7
Cotton: Origin, History, Technology, and Production
... does occur, especially in cotton landraces (Oosterhuis and Wullschleger, 1989;
McMichael et aL, 1985). The range of vascular arrangements reported includes
tetrarch, pentarch, hexarch and heptarch (Oosterhuis and Wullschleger, 1987).
C. Wayne Smith, J. Tom Cothren,
1999
8
Krishna's Objective Question Bank in Biology
In dicot roots the xylem is mono-to hexarch and in monocot roots it is hexa-to poly
arch /£__Root Hajr Phloem Metaxylem Root hair Protoxylem Fig 34. T.S. of a
dicot root The lateral roots are endogenous in origin since they arise from a layer
...
N Saxena, S Sharma, S Sharma
9
Hormone Action in the Whole Life of Plants
He used pea roots, which have triarch structure, and found that the regenerated
tips in those that were treated with auxin had hexarch structure. Controls did not
change their vascular structure on regeneration, and elongation was not ...
Kenneth Vivian Thimann,
1977
The thick roots are pentarch or hexarch or septarch at the base and tetrarch
nearer to the apical meristem and contain a central pith with or without central
metaxylem cells. The protoxylem elements often show an incomplete centripetal
...