Seminatural cultivation of economically important plant species growing in the wild state

1969 ◽  
Vol 1 (2) ◽  
pp. 151-155
Author(s):  
Jadwiga Gawlowska
Keyword(s):  
2015 ◽  
Vol 7 (3) ◽  
pp. 313-315
Author(s):  
Jibankumar S. KHURAIJAM ◽  
Rup K. ROY

Ex-situ conservation is an important key in the management of rare, endangered and threatened (RET) plant species and its effectiveness depends on several factors. Maintenance of viable germplasm and its subsequent propagation plays an important role in long term conservation of many RET species. Nepenthes khasiana is a rare and gravely threatened species in the wild due to over-collection and other threats. The species needs urgent in-situ and ex-situ conservation. Development of easy to propagate techniques would pave faster multiplication for its use of educational, medicinal and horticultural purpose. In the present paper, successful propagation technique of Nepenthes khasiana through seeds is demonstrated along with detailed information on precautions to be taken during the adoption of the techniques.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Said Muhammad ◽  
Mohammad Tahir Shah ◽  
Sardar Khan ◽  
Umar Saddique ◽  
Nida Gul ◽  
...  

This study investigates the wild plant species for their phytoremediation potential of macro and trace metals (MTM). For this purpose, soil and wild plant species samples were collected along mafic and ultramafic terrain in the Jijal, Dubair, and Alpuri areas of Kohistan region, northern Pakistan. These samples were analyzed for the concentrations of MTM (Na, K, Ca, Mg, Fe, Mn, Pb, Zn, Cd, Cu, Cr, Ni, and Co) using atomic absorption spectrometer (AAS-PEA-700). Soil showed significant (P<.001) contamination level, while plants had greater variability in metal uptake from the contaminated sites. Plant species such asSelaginella jacquemontii,Rumex hastatus, andPlectranthus rugosusshowed multifold enrichment factor (EF) of Fe, Mn, Cr, Ni, and Co as compared to background area. Results revealed that these wild plant species have the ability to uptake and accumulate higher metals concentration. Therefore, these plant species may be used for phytoremediation of metals contaminated soil. However, higher MTM concentrations in the wild plant species could cause environmental hazards in the study area, as selected metals (Fe, Mn, Cr, Ni, Co, and Pb) have toxicological concerns.


2007 ◽  
Vol 23 (1) ◽  
pp. 125-127 ◽  
Author(s):  
Zhan-Hui Tang ◽  
Aeshita Mukherjee ◽  
Lian-Xi Sheng ◽  
Min Cao ◽  
Bing Liang ◽  
...  

Frugivorous bats are important seed dispersers for many plant species (Cox et al. 1991, Fleming & Heithaus 1981, Hodgkison et al. 2003a, McConkey & Drake 2006, Nyhagen et al. 2005, Utzurrum 1995). They regularly consume figs in the wild (Fujita & Tuttle 1991, Kalko et al. 1996, Shilton et al. 1999). Various species of pteropodid bats have been reported foraging on the fruits of more than 30 fig species in tropical and subtropical Asia, Africa and Australia (Bhat 1994, Fujita & Tuttle 1991, Marshall & McWilliam 1982, Thomas 1984). Food transit times in frugivorous bats are relatively rapid; generally less than 30 min (Laska 1990, Tedman & Hall 1985). Several studies have demonstrated that seed germination was either enhanced or unaffected after passage through the digestive tract of bats (Figueiredo & Perin 1995, Fleming & Heithaus 1981, Lieberman & Lieberman 1986).


2021 ◽  
Author(s):  
M. Soledade C. Pedras ◽  
Mahla Alavi ◽  
Abbas Abdoli

The metabolites produced in elicited leaves of the wild crucifer <i>Neslia paniculata</i> (L.) Desv. were investigated in abiotically stressed plants. Herein the phytoalexins camalexin, 7-methoxycamalexin and 6,7-dimethoxycamalexin together with the signalling metabolites arabidopsides A and D are reported. This is the first report of occurrence of 7-methoxy and 6,7-dimethoxycamalexins <i>in planta</i> and the third example of synchronized biosynthesis of phytoalexins and galacto-oxylipins. It is suggested that arabidopsides and structurally similar metabolites functioning as signalling molecules are likely to occur in a much larger number of plant species than originally hypothesized. <i>N. paniculata</i> is potentially useful to generate hybrid plants resistant to blackleg disease caused by <i>Leptosphaeria maculans.</i>


2021 ◽  
Author(s):  
M. Soledade C. Pedras ◽  
Mahla Alavi ◽  
Abbas Abdoli

The metabolites produced in elicited leaves of the wild crucifer <i>Neslia paniculata</i> (L.) Desv. were investigated in abiotically stressed plants. Herein the phytoalexins camalexin, 7-methoxycamalexin and 6,7-dimethoxycamalexin together with the signalling metabolites arabidopsides A and D are reported. This is the first report of occurrence of 7-methoxy and 6,7-dimethoxycamalexins <i>in planta</i> and the third example of synchronized biosynthesis of phytoalexins and galacto-oxylipins. It is suggested that arabidopsides and structurally similar metabolites functioning as signalling molecules are likely to occur in a much larger number of plant species than originally hypothesized. <i>N. paniculata</i> is potentially useful to generate hybrid plants resistant to blackleg disease caused by <i>Leptosphaeria maculans.</i>


2015 ◽  
Vol 2 (4) ◽  
pp. 253
Author(s):  
Sutomo

<p><em>Abstrak</em> – <strong>Semakin</strong><strong> </strong><strong>meningkatnya gangguan terhadap kawasan hutan mengakibatkan sebagian jenis tumbuhan menjadi terancam keberadaannya di alam. Kawasan Bedugul-Batukahu-Pancasari pun tak luput dari gangguan ini. Kebun Raya Bali sebagai lembaga konservasi ex-situ bergerak untuk mulai melakukan konservasi terhadap lima jenis tumbuhan langka lokal</strong><strong>. Lima target tersebut</strong><strong> adalah Majegau (</strong><strong><em>Dysoxylum caulostachyum </em></strong><strong>Miq.), Kaliasem (<em>Eugenia polycephala </em>Miq.), Rijasa (<em>Elaeocarpus grandiflora </em>J. E. Smith.), Kemoning (<em>Murraya paniculata</em> Jacq.), dan Tulak (<em>Schefflera elliptica </em>Harms.). Kegiatan eksplorasi di kawasan hutan Danau Buyan-Tamblingan dan beberapa desa di Kabupaten Buleleng Bali pun dilaksanakan untuk tujuan ini. Eksplorasi dilakukan dengan metode wawancara terbuka dengan penduduk lokal dan dengan metode jelajah untuk mendapatkan jenis tumbuhan yang dtargetkan baik di kawasan hutan maupun kawasan sekitar desa yang dikunjungi. Eksplorasi tumbuhan langka ini berhasil mengkoleksi sebanyak 22 nomor koleksi yang terdiri dari 14 suku, 18 marga dan 18 jenis dengan 3 gendub. Dari keseluruhan jenis yang ditargetkan, semua jenis berhasil didapatkan di dalam kegiatan ini.</strong></p><p> </p><p><em>Abstract</em> – <strong>Disturbance</strong><strong> </strong><strong> to forested lands had caused some plant species to become threatened of its existence in the wild. The Bedugul-Batukahu-Pancasari areas also experiencing various disturbances. Bali Botanical Garden as a conservation institution is conducting efforts to conserve targeted species which are in rare status according to IUCN and national criteria. Five plant species were chosen as target</strong><strong>s</strong><strong> in th</strong><strong>is</strong><strong> expedition in Bali: Majegau (</strong><strong><em>Dysoxylum caulostachyum </em></strong><strong>Miq.), Kaliasem (<em>Eugenia polycephala </em>Miq.), Rijasa (<em>Elaeocarpus grandiflora </em>J. E. Smith.), Kemoning (<em>Murraya paniculata</em> Jacq.), and Tulak (<em>Schefflera elliptica </em>Harms.). This expedition was done using forest exploration and open interview methods to find the targeted species. All of the targeted species were found. We found and collect</strong><strong>ed</strong><strong> 22 plant specimens from 14 species and 8 families of locally useful rare plants.</strong></p><p> </p><p><strong><em>Keywords</em></strong><strong><em> - </em></strong><em>Locally rare plants, Bali, Buleleng, Buyan-Tamblingan, Bali Botanical Garden.</em></p>


2016 ◽  
Vol 86 (2) ◽  
Author(s):  
Rainer W. Bussmann ◽  
Narel Y. Paniagua-Zambrana ◽  
Shalva Sikharulidze ◽  
Zaal Kikvidze ◽  
David Kikodze ◽  
...  

In this study, we documented traditional plant use in Tusheti, Khevsureti, and Pshavi and hypothesized that (i) plant use knowledge in general would be higher in isolated high elevation communities, and that (ii) use of home gardens would be much more restricted to lower elevation settings. Fieldwork was conducted in Khevsureti, Pshavi, and Tusheti. Interviews using semi-structured questionnaires were conducted with 74 participants. In the present study, we encountered 317 plant species belonging to 203 genera of 80 families being used in the research region. Of these, 197 species were exclusively wild-harvested, 73 were grown in homegardens, and 47 were both grown in gardens and sourced in the wild. The ordinations in plant-space and in use-space were significantly fit by elevation of informant community, and community itself. Age and gender did not significantly fit the distribution of informants across either plant-space or use-space, respectively. Number of use-reports was highest across all communities in the food and medicinal use-categories, and informant consensus. Species with especially high use-diversity (UD) tended to be woody species although. Species with high use-value (UV) were mostly managed/domesticated species from home orchards, gardens, or farms. Plant species, and uses, found in our study, showed clear relations to the wider Eurasian cultural complex. The species number found was, however, far higher than in any published study from either the region or the wiser Mediterranean and Eurasia. The maintenance of home gardens in Georgia serves as socio-ecological memory. While the great variety of plant species used in the Georgian Caucasus might provide a reservoir for food security climate change is starting to affect both natural floristic diversity and gardens both in the Caucasus as well as continent wide.


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