NDLI: In vitro propagation of cashew from young trees

Content Provider	Springer Nature Link
Author	Shirly, R. A. Sadhana, P. H.
Copyright Year	2002
Abstract	Regeneration of cashew (Anacardium occidentale L.) from shoot explants of young grafts of mature tree origin is described. Establishment of shoot cultures was affected by season of collection, source, and type of explant. Explants from young grafts established better than those collected from field trees, and nodal cuttings regenerated better than shoot tips. Maximum percentage bud break and minimum contamination was noticed when shoots were collected in dry months (January to May). Pre-conditioning of stock plants by hormonal spray with 6-benzyladenine (BA) and gibberellic acid (GA$_{3}$) and brief presoaking of shoots in BA had no significant effect on culture establishment. MS (Murashige and Skoog, 1962) medium with half-strength major nutrients, 2.74 mM l-glutamine, 87.6 mM sucrose, and 2.25 gl$^{−1}$ phytagel was ideal for culture initiation. Inclusion of 0.1% polyvinylpyrrolidone (PVP-360) in the media reduced phenolic exudation. Solidified media was superior to liquid medium. Sucrose/glucose as energy source was found essential in the medium and had significant effect on percentage bud break and shoot development. A repeatable axillary shoot-bud induction was obtained on the above basal medium containing thidiazuron (TDZ) alone and in combination with BA. TDZ at 0.45 μM was best for axillary shoot-bud proliferation (4.5 buds per shoot) with maximum response (100%). Bud elongation could be stimulated in multiple shoots on medium containing 116.8 mM sucrose. In vitro rooting on auxin media and pulsing microshoots in 10 mM naphthalenaacetic acid (NAA) was ineffective. Rooting inability was, however, overcome by a micrografting procedure.
Starting Page	152
Ending Page	156
Page Count	5
File Format	PDF
ISSN	10545476
Journal	In Vitro Cellular & Developmental Biology - Plant
Volume Number	38
Issue Number	2
e-ISSN	14752689
Language	English
Publisher	Springer-Verlag
Publisher Date	2002-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Anacardium micropropagation micrografting rejuvenation rooting Cell Biology Developmental Biology Plant Genetics & Genomics Plant Biochemistry Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Developmental Biology Plant Science Biotechnology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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