African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 724

AJPS Articles

Phytochemical and antioxidant screening of some plants of apocynaceae from South West Nigeria

October 2008

The phytochemical and antioxidant properties of Strophantus hispidus (stem and root), Voacanga africana (stem and leaf) and Thevetia neriifolia (stem and leaf) were investigated. The parts of the plants used were based on those used locally. All the plants tested positive for the presence of tannins, flavonoids and cardiac glycosides, all except S. hispidus (stem) tested positive...

Author(s): Ayoola G. A., Folawewo A. D., Adesegun S. A., Abioro O. O., Adepoju-Bello A. A., Coker H. A. B.

Assessment of phenotypic diversity of macadamia (Macadamia spp) germplasm in Kenya using leaf and fruit morphology

September 2008

The ability to identify genetic variation is indispensable to effective management and use of genetic resources. Morphological traits are among the earliest markers used in germplasm characterization and management. Leaf and fruit morphological characteristics were recorded for 23 cultivars of Macadamia using a sample of 30 for each trait and replicated three times. The analysis of variance revealed significant...

Author(s): Lucy Gitonga, , Esther Kahangi, Anne Muigai, Kamau Ngamau, Simon Gichuki, Wilson Cheluget and Simon Wepukhulu

Isolation of total RNA from ripe and unripe soursop (Annona muricata L.) fruit

September 2008

Soursop fruit tissue is known by its acidic pH and high levels of polysaccharides, polyphenolics and secondary metabolites. These conditions are recognized to interfere unfavorably with conventional methodologies for RNA isolation. We describe here a rapid and simple method for the isolation of total RNA from soursop fruit. RNA was extracted in less than 4 h through a combination of SDS/potassium acetate precipitation...

Author(s): Isabella Montenegro Brasil, Maria de Lourdes Oliveira Otoch, José Hélio Costa, Geraldo Arraes Maia, Maria da Guia Silva Lima, Birgit Arnholdt-Schmitt and Dirce Fernandes de Melo

Bioindicators in sustainable management of tropical forests in India

September 2008

Nature follows its own pattern to regulate the dynamic ecosystem. If the process is closely monitored it provides indication for the cause and effect of the changes occurring owing to natural factors and anthropogenic activities. The bioindicators are potentially useful tool for the scientists, researchers and foresters to assess the sustainable forest management (SFM) in countries like India, which is rich in...

Author(s): P. C. Kotwal, L. S. Kandari and D. Dugaya

Regeneration efficiency of cowpea [Vigna unguiculata (L.) Walp.] via embryonic axes explants

September 2008

The experiment was conducted to test the in vitro regeneration efficiency of cowpea shoots via embryonic axes explants and the effect of benzyl amino purine (BAP) concentration on shoot formation. A total of 600 explants (embryonic axes) were plated from which 237 shoots were regenerated. The average regeneration ratio was 39% and the number of shoot per explant obtained stood at an average of 6.0. This...

Author(s): M. Yusuf, A. A. Raji, I. Ingelbrecht and  M. D. Katung

Regeneration of plants from rice caryopsis derived callus culture of Nigerian local cv. Suakoko 8 and a NERICA cv. FARO 55

September 2008

  The regeneration protocol for rice plants from callus culture obtained from dehusked and sterilized whole rice seeds (caryopses) of a popular Nigerian local cultivar Suakoko 8, and a NERICA cultivar FARO 55 is described. Utilizing a modified Nippon Barre medium (NBm) consisting of: Macro N6, Micro B5, Fe-EDTA, B5 vitamin and 30 mg/l of locally produced St Louis® sugar (to save cost) supplemented with...

Author(s): Abolade S. Afolabi , O. Oyebanji , O. Odusanya, M. E. Abo, M. Misra and G. H. Ogbadu

Response of mustard and linseed to thermal power plant wastewater supplemented with nitrogen and phosphorus

August 2008

  The effect of thermal power plant discharged waste water (TPPW) on growth, yield and quality of mustard (Brassica juncea L. cv. Alankar) and linseed (Linum usitatissimum L. cv. Neelam) was studied. TPPW increased growth characteristics, net photosynthetic rate, seed yield, oil content and oil yield of the two crops. In mustard, treatments TPPW N112P60 (112 kg N/ha + 60 kg P/ha), TPPW N112P30 (112 kg...

Author(s): Afroza Akhtar, Akhtar Inam and Arif Inam

Morphological and agronomical characterization of sweet potato [Ipomoea batatas (L.) Lam.] germplasm collection from Tanzania

August 2008

  One hundred and thirty six sweet potato (Ipomoea batatas) landraces collected from three different agro-ecological Zones of Tanzania [Lake Victoria basin (LZ), Eastern (EZ) and Southern Highlands Zones (SHZ)] were characterized morphologically and agronomically using International Potato Centre (CIP) descriptors in two seasons. The cluster analysis revealed existence of two major groups, 1 and 2...

Author(s): Fred Tairo, Emmarold Mneney and Alois Kullaya

Induction of anti-oxidative enzymes by cadmium stress in tomato (Lycopersicon esculentum)

August 2008

  In the present study, the cadmium’s effect on anti-oxidative enzymes in tomato (Lycopersicon esculentum) plants was evaluated. Plants treated with increasingly CdCl2concentrations (0, 20, 40, 80, 100 and 200 μM respectively) were grown in a basic nutrient solution for 7 days. APX (Ascorbate Peroxidase) and GPX (Guaïgol Peroxidase) activities showed to increase below 100 μM concentration after...

Author(s):   Sbartai Hana, Rouabhi Rachid, Sbartai Ibtissem, Berrebbah Houria and Djebar Mohammed-Réda

The morphology and ultrastructure of glandular and non-glandular trichomes of Pteronia incana (Asteraceae)

July 2008

  The electron microscopical investigation of foliar appendages of Pteronia incana(Burm) has shown that there are two types of trichomes. The non-glandular type which consists of two-four cells forms a dense mass of long fibrous hairs, covering the entire surface of plant. The glandular trichome types which are club-oval shape and consist of several glandular cells. The gland cells of the glandular...

Author(s): Buyisile Mayekiso, Micheal L. Magwa, Roger Coopoosamy

Irrigation suitability evaluation and crop yield – An example with Amaranthus cruentus in Southwestern Nigeria

July 2008

  A detailed soil survey of 1.03 hectares of land within University of Ado Ekiti Teaching and Research Farm was carried out to evaluate the suitability of the soils for irrigation agriculture and to examine the influence of three different soil types, water and fertilizer rates on the yield of Amaranthus cruentus. All the soils evaluated were considered not suitable for gravity irrigation but soil A...

Author(s): Fasina, A. S., Awe, G. O. and Aruleba, J. O.

Molecular analysis and phenotype characterization of the progeny of two antisense potato plants

June 2008

  Two transgenic potato lines csr2-1 and csr4-8, containing two different antisense constructs, csr2 and csr4, respectively, were crossed to investigate the possibility of achieving double transformants with combined effects of the two antisense transgenes on plant phenotypes and cellulose deposition. Molecular analysis revealed an expected segregation ratio of 1:1:1:1 of the four classes. Phenotype...

Author(s): Olawole O. Obembe, Evert Jacobsen and Richard G. F. Visser

Edaphic factors and survival of a red mangrove species (Rhizophora mangle) in two mangrove swamp soils

June 2008

  The effects of two Niger Delta Mangrove Swamp Soils on growth and growth components of Rhizophora mangle were studied. The mud flats had higher manganese, organic carbon, lower sodium, higher phosphorus, lower pH and no sand particle compared with peaty clays. The mud flats also had very low cation exchange capacity (CEC) and these qualities affected adversely the plant height, survival,...

Author(s): J. A. Onwugbuta-Enyi, B. A. Onuegbu and K. Zuofa

Forest vegetation patterns along an altitudinal gradient in sub-alpine zone of west Himalaya, India

June 2008

The present study describes vegetation diversity along an altitudinal gradient in three sites of sub-alpine forests. The altitude of the study sites ranged from 2800 - 3600 m asl and represented a transition from closed canopy temperate forests to open canopy sub-alpine forests. The results revealed that from low to high altitude strata, size and density of trees decline sharply. The density of sapling and seedling...

Author(s): Sanjay Gairola, R. S. Rawal and N. P. Todaria

Studies on the vegetative growth requirements of Psathyrella atroumbonata, pegler, an edible mushroom in Nigeria

May 2008

  Growth requirements of Psathyrella atroumbonata Pegler, a Nigeria edible mushroom were studied. Glucose was the best carbon source. This was followed by maltose, starch and manitol in that order. The least growth was observed in lactose and cellulose. Yeast extract which is organic nitrogen proved to be the best nitrogen source. P. atroumbonata utilizes organic nitrogen better than...

Author(s): S. M. Ayodele

Changes in fatty acid composition of polar lipids associated with growth and senescence in leaves of Catharanthus roseus

May 2008

  Polar lipids are important membrane components of plant cells. They are known to affect certain membrane properties like permeability, fluidity and active transport. In the present study, individual leaf buds were tagged on the day of appearance and sampling began 7 days later. Additional samples were taken at 7 days intervals until leaf abscission occurred about 77 days after tagging. The experiments were...

Author(s): Sanjay Mishra and Rajender Singh Sangwan

Performance of green maize and soil nutrient changes with fortified cow dung

March 2008

  Organic manures are known to have the ability of supplying both the required macro and micro plant nutrients but in low quantities and usually not early enough for quick utilization. Enriching the manure combats the deficiency of late and low supply of nutrients. Experiments were conducted to assess the growth and yield of maize with Nitrogen-enriched cow dung. This was compared with performance with...

Author(s): O. T. Ayoola and  E. A Makinde

Relationship between growth and ion relation in pearl millet (Pennisetum glaucum (L.) R. Br.) at different growth stages under salt stress

March 2008

  Seedlings of two pearl millet (Pennisetum glaucum (L.) R. Br.) lines were exposed to 0 (control) and 100 mol m–3 NaCl salinity. Treatments were applied fourteen days after germination. Growth of the shoot and root system and ion contents were determined at seedlings (21 days after treatment) and vegetative stage (42 days after treatment). NaCl concentration caused reduction in the...

Author(s): Khalid Hussain, Muhammad Ashraf and Muhammad Yasin Ashraf

Epiphytic organisms on the pneumatophores of the mangrove Avicennia marina: occurrence and possible function

February 2008

  The nature of the epiphytism of red algae and also the occurrence and possible role of other epiphytic micro-organisms within the superficial tissues of pneumatophores of Avicennia marina (Forssk.) Vierh. were investigated. Transmission electron microscopy (TEM) studies revealed that bacteria and holdfasts of red algae were present in damaged tissue of the periderm. Culture studies indicated that...

Author(s): Y. Naidoo, T. D. Steinke, F. D. Mann, A. Bhatt and S. Gairola

Variation in the essential oil composition of Artemisia annua L. of different growth stages cultivated in Iran

February 2008

  Variation in the quantity and quality of the essential oil of Artemisia annua L.(Asteraceae) at different developmental growth stages including pre-flowering, flowering and post-flowering, are reported. The oils were obtained by hydro distillation of the air-dried samples. The yields of oils (w/w %) in different stages were in the order of: pre-flowering (0.97%), flowering (1.23%) and flowering (0.87%)....

Author(s): Verdian-rizi Mohammadreza

Molecular analysis of dicot-monocot split and relationship among major angiosperm groups

January 2008

    The relationship among the major angiosperm groups are modeled based on cladistic analyses primarily using RAPD technique. Phylogenetic trees of relationship derived from molecular data confirm dicots as the ancestral class of monocots, there seems no dicot-monocot split. Dicots form an ancestral class of magnoliids and the monocot lineage was derived from one of the...

Author(s): Mir Abid Hussain, Vijeshver Verma and Malik Zanul Abdin

Effect of pre-sowing, temperature and light on the seed germination of Arnebia benthamii (Wall. ex G. Don): An endangered medicinal plant of Central Himalaya, India

January 2008

  Arnebia benthamii is under intensive utilization because of its wide use as medicinal and aromatic plant resource. Self-propagation of this species is by both seed and vegetative propagation. In an effort to improve and promote the cultivation of this over-exploited medicinal herb, the effect of temperature and light on the germination of seeds was investigated with various presowing treatments of water...

Author(s): L.S. Kandari, K.S. Rao, R.K. Maikhuri and Kusum Chauhan

Assessment of status and biomass of Swertia angustifolia : a high value Himalayan medicinal plant

September 2007

Studies on population assessment and biomass variation in selected populations of Swertia angustifolia were undertaken in west Himalaya. Low population density across the surveyed populations indicates poor availability of the species in study area. Species showed random distribution and higher frequency of occurrence in most of the population, which is the indicator of better potential of the species in...

Author(s): Arvind Bhatt, Anil K Bisht, R. S. Rawal and Uppeandra Dhar

Allozyme diversity in South Western Ghats populations of Terminalia paniculata Roth.(Combretaceae)

September 2007

Terminalia paniculata Roth. (Combretaceae) is a tropical tree with a large natural distribution in Western Ghats. The tree is extensively utilized in pharmaceutical, timber tannin, leather and silk industries. However, the species has been overexploited and information on its existing gene pool is currently lacking. The present work was therefore carried out using allozyme markers to assess the genetic diversity...

Author(s): Thangaraja A. and Ganesan V.

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