Modern Methods in Orchid Conservation by H. W. Pritchard

By H. W. Pritchard

The subject material of this article is convention established and offers with the body structure, ecology and administration of orchid conservation. It bargains details not just to the orchid learn scientist, but additionally to the orchid fanatic serious about the medical historical past to this subject. curiosity and aid for plant conservation has elevated significantly and loads of cognizance has been all for the plight of participants of the orchid relations. the improvement makes it fascinating to assemble current info and to think about components of study.

Show description

Read or Download Modern Methods in Orchid Conservation PDF

Best gardening & landscape design books

Normed Algebras

Publication and to the writer NOORDHOFF who made attainable the looks of the second one version and enabled the writer to introduce the above-mentioned modifi­ cations and additions. Moscow M. A. NAIMARK August 1963 FOREWORD TO the second one SOVIET version during this moment version the preliminary textual content has been labored once more and enhanced, sure parts were thoroughly rewritten; specifically, bankruptcy VIII has been rewritten in a extra available shape.

The Social Construction of Science: A Comparative Study of Goal Direction, Research Evolution and Legitimation

This publication matters the institutionalisation of the actual sciences. The e-book breaks with the validated culture within the historical past, philosophy and sociology of sciences by way of trying to trap either the cognitive and social dimensions of institutionalisation in a single unified research. This unifica­ tion has been accomplished via a remedy of analysis as target directed social motion - a subject matter which has been constructed either theoretically and empirically.

Edible Perennial Gardening: Growing Successful Polycultures in Small Spaces

Do you dream of a low-maintenance perennial backyard that's complete to the brim of perennial greens that you just don’t need to maintain replanting, yet have just a small area? do you need a backyard that doesn’t take a lot of some time and that wishes little consciousness to regulate the pests and ailments that devour your vegetation?

Simple Steps to Success Orchids

Easy Steps to good fortune: Orchids utilizing a mixture of bite-sized, simply obtainable details, and encouraging pictures of a possibility results,the easy Steps sequence promotes gardening as a true excitement instead of a back-breaking chore. No different staff within the plant nation can fit the magnificent range stumbled on in the orchid family members.

Extra info for Modern Methods in Orchid Conservation

Sample text

Germination and fungus compatibility 47 Table 2. Source of mycorrhizal fungi used in compatibility testing with orchids. Mycorriiizal fungus isolate Orchid species source of isolate 03 Ophrys holoserica (Burm. ) Greuter Dactylorhiza romana (Sebast) So6 Orchis militaris Orchis papilionacea L. Orchis papilionacea Orchis simiaLam. Seropios lingua L. Orchis militaris Orchis purpurea Hudson Dactylorhiza fuchsii (Druce) Sod Platanthera chlorantha (Custer) Reichb. f. ) Briq. ) So6 Dactylorhiza fuchsii Ophrys vernixia Q> 08 Q13 Q14 Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 M10 a — The work with the rare British species highlighted the difficulties that can be encountered in developing effective symbiotic or asymbiotic methods, and revealed that though some species may respond very well to a number of fungal symbionts, or develop on a number of different media, no single method can be adopted for the in vitro propagation of all European orchid species, rather there are some which show a high degree of specificity for fungi and/or particular nutrients.

Coriophora subsp. fragrans, 0. sancta, Serapias lingua, S. parviflora, S. vomeracea. Orchis morio. others, Q14, Q18, Q21 and possibly Q23, there is a fair degree of non-specificity between orchid species. However, if one looks only at the early stages of development, up to stages 2 and 3, then a much higher degree of non-specificity is apparent. These results therefore illustrate the dangers of drawing premature conclusions from compatibility trials or sowing experiments conducted over short time periods.

Adv. Bot. , 7, 421-655. Arditti, J. & Ernst, R. (1984). Physiology of germinating orchid seeds. In Orchid Biology Reviews and Perspectives III, ed. J. Arditti, pp. 197-200. Ithaca, USA: Cornell University Press. T. (1936). The germination of native orchid seeds. Am. Orchid Soc. , 5, 42-7. C. (1983). Effects of agar brand and concentration on the tissue culture medium. Physiol. , 59, 270-6. Dix, L. & van Staden, J. (1982). Auxin and gibberellin-like substances in coconut milk and malt extract. Plant Cell Tissue and Organ Culture, 1,239-46.

Download PDF sample

Rated 4.09 of 5 – based on 21 votes