scholarly journals Flavonoid Contents From Some Exotic Tree Species Growing In Rajasthan Desert

2013 ◽  
Vol 1 (03) ◽  
pp. 20-22
Author(s):  
B. B.S. Kapoor ◽  
Shelja Pandita
Keyword(s):  
Tree Species ◽  
Total Flavonoid ◽  
Colophospermum Mopane ◽  
Kigelia Pinnata ◽  
Exotic Tree ◽  
Putranjiva Roxburghii

Evaluation of flavonoid contents from four selected exotic tree species like Colophospermum mopane, Holoptelea integrifolia, Kigelia pinnata and Putranjiva roxburghii growing in Rajasthan Desert was carried out. The leaves of selected trees were analysed for flavonoid contents i.e. Quercetin and Kaempferol. Flavonoid contents like Quercetin and Kaempferol were isolated and identified. The maximum total flavonoid contents (17.10mg./gdw) was found in leaves of Putranjiva roxburghii while minimum (9.20mg./gdw) in leaves of Holoptelea integrifolia.

scholarly journals Ascorbic Acid Contents From Some Exotic Tree Species Growing in Rajasthan Desert

2013 ◽  
Vol 1 (03) ◽  
pp. 29-31
Author(s):  
B. B.S. Kapoor ◽  
Shelja Pandita
Keyword(s):  
Ascorbic Acid ◽  
Tree Species ◽  
Colophospermum Mopane ◽  
Kigelia Pinnata ◽  
Exotic Tree ◽  
Putranjiva Roxburghii

Ascorbic acid contents of stems, leaves and fruits from four selected exotic tree species like Colophospermum mopane, Holoptelea integrifolia, Kigelia pinnata and Putranjiva roxburghii have been analysed. Maximum ascorbic acid contents were found in the fruits of Colophospermum mopane (42.10mg/100g.d.w.) while, minimum in the stems of Kigelia plnnata (22.15mg/100g.d.w).

scholarly journals Antimicrobial Screening of Some Exotic Tree Species of Rajasthan Desert

2013 ◽  
Vol 1 (03) ◽  
pp. 08-11
Author(s):  
B. B.S. Kapoor ◽  
Shelja Pandita
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Ethyl Ether ◽  
Tree Species ◽  
Fungal Pathogen ◽  
Antimicrobial Screening ◽  
Kigelia Pinnata ◽  
Exotic Tree ◽  
Putranjiva Roxburghii

Antimicrobial screening of ethyl ether and alcoholic extracts of leaves of four selected exotic tree species growing in Rajasthan Desert was carried out. Colophospermum mopane, Holoptelea integrifolia, Kigelia pinnata and Putranjiva roxburghii showed positive reactions against bacterial pathogens i.e. Staphylococcus aureus, Escherichia coli and a fungal pathogen Candida albicans.

Naturalized Exotic Tree Species in Puerto Rico

1991 ◽  
Author(s):  
John K. Francis ◽  
Henri A. Liogier
Keyword(s):  
Puerto Rico ◽  
Tree Species ◽  
Exotic Tree

Naturalized Exotic Tree Species in Puerto Rico

1991 ◽  
Author(s):  
John K. Francis ◽  
Henri A. Liogier
Keyword(s):  
Puerto Rico ◽  
Tree Species ◽  
Exotic Tree

scholarly journals Identification and quantitative analysis of phenolic compounds naturally occuring in wood of selected European and exotic tree species

2009 ◽  
Vol 70 (1) ◽  
pp. 27-39 ◽  
Author(s):  
Paweł Zarzyński
Keyword(s):  
Quantitative Analysis ◽  
Phenolic Compounds ◽  
Tree Species ◽  
Exotic Tree

Identyfikacja i analiza ilościowa substancji o charakterze fenolowym naturalnie występujących w drewnie wybranych gatunków drzew europejskich i egzotycznych

Leaf litter age regulates the effect of native and exotic tree species on understory herbaceous vegetation of riparian forests

2020 ◽  
Vol 48 ◽  
pp. 11-25
Author(s):  
Paloma de las Heras ◽  
Silvia Medina-Villar ◽  
M.Esther Pérez-Corona ◽  
Beatriz R. Vázquez-de-Aldana
Keyword(s):  
Leaf Litter ◽  
Tree Species ◽  
Riparian Forests ◽  
Herbaceous Vegetation ◽  
Exotic Tree

scholarly journals Exotic urban trees conserve similar natural enemy communities to native congeners but have fewer pests

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6531 ◽  
Author(s):  
Steven D. Frank ◽  
Kristi M. Backe ◽  
Casey McDaniel ◽  
Matthew Green ◽  
Sarah Widney ◽  
...  
Keyword(s):  
Natural Enemies ◽  
Tree Species ◽  
Native Species ◽  
Urban Trees ◽  
Scale Insects ◽  
Single Family ◽  
Exotic Trees ◽  
Exotic Tree ◽  
Native Tree Species ◽  
Arthropod Pest

Urban trees serve a critical conservation function by supporting arthropod and vertebrate communities but are often subject to arthropod pest infestations. Native trees are thought to support richer arthropod communities than exotic trees but may also be more susceptible to herbivorous pests. Exotic trees may be less susceptible to herbivores but provide less conservation value as a consequence. We tested the hypotheses that native species in Acer and Quercus would have more herbivorous pests than exotic congeners and different communities of arthropod natural enemies. The density of scale insects, common urban tree pests, was greatest on a native Acer and a native Quercus than exotic congeners in both years of our research (2012 and 2016) and sometimes reached damaging levels. However, differences in predator and parasitoid abundance, diversity, and communities were not consistent between native and exotic species in either genus and were generally similar. For example, in 2012 neither predator nor parasitoid abundance differed among native and exotic Acer congeners but in 2016 a native species, A. saccharum, had the least of both groups. A native, Q. phellos, had significantly more predators and parasitoids in 2012 than its native and exotic congeners but no differences in 2016. Parasitoid communities were significantly different among Acer species and Quercus species due in each case to greater abundance of a single family on one native tree species. These native and exotic tree species could help conserve arthropod natural enemies and achieve pest management goals.

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