Search Results for : Asteraceae
Bidens bipinnata L. (Asteraceae): A new species record to Rajasthan state, India
Bidens bipinnata L. (Asteraceae), first-time distribution records from the State of Rajasthan. Previously, this species was distributed only in Jammu & Kashmir, Himachal Pradesh, Uttar Pradesh and Punjab. In Rajasthan, it is reported as an addition to the flora of the State. This article provides habitat, distribution, detailed description, plant association, flowering and fruiting time, […]
Eclipta alba (Family: Asteraceae): A review of botanical, ethnopharmacological, phytochemical and pharmacological studies
A traditional medicinal plant which is native to tropical, subtropical and warm temperate areas of the globe. The plant is distributed as a contaminant in rice seed in France and Philippines. Running water especially floods distributes the seeds from field to field. The plant is common for its medicinal value in alternative systems of holistic […]
Cladistics of Western Himalayan Artemisia L. (Anthemideae, Asteraceae) reconstructed on morphological traits
The large size and confounding morphological characters of genus Artemisia has created problems of generic delimitations and infrageneric classification for taxonomists. This work suggests the use of additional morphological traits in identification and classification of Artemisia. It is observed that same species show polymorphic characters under certain environmental conditions that make them more difficult to […]
Pollination efficiency of Braunsapis sp. (Hymenoptera: Apidae) on Helianthus annuus L. (Asteraceae) flowers at Dang (Ngaoundéré, Cameroon)
This research was carried out to evaluate the impact of Braunsapis bees on fruit and seed yields of sunflower in an experimental field from June to July in 2016 and 2017 at Dang. Observations were made on 540 capitula divided in four treatments: two treatments differentiated according to the presence or absence of protection of […]
Pollination efficiency of Apis mellifera (Hymenoptera: Apidae) on Helianthus annuus (Asteraceae) flowers at Dang (Ngaoundéré, Cameroon)
To determine the impact of Apis mellifera on fruit and seed yields of Helianthus annuus L., foraging and pollination activities of worker bees were studied at Dang, from June to July, in 2016 and 2017. Observations were made on 540 capitula divided in four treatments: two treatments differentiated according to the presence or absence of […]
Variation of Palynomorphological and pollen production of some invasive plant species of Asteraceae family in conservation areas of tropical rain forest, West Sumatra, Indonesia
Some conservation areas in tropical forests of West Sumatra have been invaded by some invasive plants species from family Asteraceae. Characterization and pollen production of these plants are very useful to identify and clarify their invasiveness. This paper analyzed the ability of twelve invasive plants in producing the pollens, as determinant agents of reproductive biology. […]
Palyno morphological study of the genus Sonchus L. (Asteraceae) species of the flora of Ukraine
The pollen morphology of the genus Sonchus L. reported from Ukraine was studied with a Light and Scanning electron microscope. The samples were collected from the herbarium material of the M.G. Kholodny Institute of Botany of The National Academy of Sciences of Ukraine. The pollen grains of the studied species of genus Sonchus were found to […]
In vitro organogenesis of Ageratum houstonianum (Asteraceae)
Regeneration of whole plants from tissue explants is a key technology for crop improvement and plant biotechnology and has critically contributed to the green revolution. In this study, the effects of MS medium supplemented with various concentrations of Kin and IAA combination on induction of callus, shoot and root induction and multiplication, and plantlet formation […]
Chemical composition and insecticidal activity of essential oil of Artemisia herba alba (Asteraceae) against Ephestia kuehniella (Lepidoptera: Pyralidae)
Plant secondary metabolites play an important role in plant-insect interactions and therefore such compounds may have insecticidal or biological activity against insects. In the present study, aerial parts of Artemisia herba alba Asso were subjected to hydro distillation using a Clevenger-type apparatus and the chemical composition of the volatile oils was studied by GC-MS. Forty […]
Description of Hilda cameroonensis sp.n. (Hemiptera: Tettigometridae) new species of Hildinae associated with Vernonia amygdalina Delile (Asteraceae) from Cameroon
Vernonia amygdalina Del., commonly called bitter leaf, is a perennial schrub that belongs to the family Asteraceae and grows throughout tropical Africa. It is probably the most used medicinal plant in the genus Vernonia. Extracts of the plant have been used in various folk medicines’ as remedies against helminthic, protozoal and bacterial infections with scientific […]