African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 688

AJPS Articles

March 2009

Molecular analysis of type III polyketide synthase (PKS) gene family from Zingiber officinale Rosc

  Enzymes of the type III polyketide synthase family is considered to have significant role in biosynthesis of structurally diverse polyketide scaffolds in Zingiber officinale. Genome wide analysis of polyketide synthase gene family in Z. officinale identified partial sequences of six members. Comparative sequence analysis showed that four of them ZoPKS2, 3, 4 and 6 were novel forms as revealed...

Author(s): Radhakrishnan E. K. and E. V. Soniya

  • Article Number: F6D34CF9969

March 2009

Qualitative analysis of tree species in evergreen forests of Kumaun Himalaya, Uttarakhand, India

  Current study provides information on the characteristics of tree species in five forests types in the Kumaun Himalaya. On the basis of importance value index, it was observed that Pinus roxburghii is the common tree species at site 1 and 2,Quercus leucotricophora is common at site 3, 4 and 5 is dominated by Quercusfloribunda and Quercus semecarpifolia, respectively....

Author(s): Geeta Kharkwal

  • Article Number: 9A5DD879977

February 2009

Response of potato (Solanum tuberosum L.) to different rates of nitrogen and phosphorus fertilization on vertisols at Debre Berhan, in the central highlands of Ethiopia

  A study was conducted to determine the response of potato (Solanum tuberosumL.)  to different rates of nitrogen (N) applied as urea (0, 69, 138 and 207 kg/ha) and phosphorus (P) (0, 20, 40 and 60 kg/ ha) fertilization on Vertisols of Debre Berhan in the highlands of central Ethiopia. Application of 207 kg N/ha delayed days to flowering and physiological maturity by four and nine days,...

Author(s): Zelalem A., Tekalign T. and Nigussie D.

  • Article Number: 165E4499897

February 2009

Evaluation of antibacterial properties of Chebulic myrobalan (fruit of Terminalia chebula Retz.) extracts against methicillin resistant Staphylococcus aureus and trimethoprim-sulphamethoxazole resistant uropathogenic Escherichia coli

  The aim of this study was to evaluate the possible antibacterial potential of Chebulic myrobalan extracts (cold aqueous, hot aqueous and ethanol) against multi-drug resistant bacterial pathogens. For this purpose both clinical isolates (methicillin resistant Staphylococcus aureus and trimethoprim-sulphamethoxazole resistant uropathogenic Escherichia coli) and standard type control strains were...

Author(s): Anwesa Bag, Subir Kumar Bhattacharyya, Premananda Bharati Nishith Kumar Pal and Rabi Ranjan Chattopadhyay

  • Article Number: 5E3EA1C9920

February 2009

Performance of exotic mulberry (Morus spp.) germplasm on growth and yield traits in Indian condition

  Exotic mulberry germplasm accessions were evaluated under tropical dry agro-climatic condition of India. Mulberry accessions showed great extent of variation in growth and yield traits. The analysis of variance revealed significant differences in all growth and yield traits. The interaction between accession x season was significant for all traits except number of branches per plant, total shoot length and...

Author(s): Amalendu Tikader and Chandrakant Kamble

  • Article Number: 11ACA5C9936

January 2009

Biocontrol of wilt disease complex of pigeon pea (Cajanus cajan (L.) Millsp.) by isolates of Pseudomonas spp.

  Biocontrol of wilt disease complex of pigeon pea, caused by Meloidogyne incognita, Heterodera cajani and Fusarium udum, was studied using 21 isolates of fluorescent Pseudomonads isolated from pathogen suppressive soils. The isolates Pf 718, Pf 719 and Pf 736 of Pseudomonas fluorescens and Pa 737 of P. aeruginosa caused 79, 84, 87 and 93% reductions in hatching...

Author(s): Z. A. Siddiqui and U. Shakeel

  • Article Number: C5A5AE39834

January 2009

Bactericidal activity of Pistacia atlantica. Desf mastic gum against certain pathogens

  The hydro-distilled essential oils from the exudates of Pistacia atlantica. Desfstems have been tested against three bacteria (Escherichia coli, Staphylococcus aureus and Streptococcus pyogenes) using three different methods (agar disc diffusion method, minimal inhibitory concentration and Maruzella method, and showed antimicrobial activity against all these...

Author(s): Bachir Raho Ghalem and Benali Mohamed

  • Article Number: 12521C09871

December 2008

Studies on the pollen biology of Terminalia paniculata Roth. (Combretaceae)

Terminalia paniculata is a deciduous tree widely distributed in tropical semi-evergreen and moist deciduous forest.  Flowers of T. paniculata have ten stamens, which remain inside the bud and anthesis is carried out at different times of the day.  Pollen grains are medium spherical, tricolpate 17 mm in diameter, smooth exine and yellow in colour. The pollen: ovule ratio approximated 16,000:...

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

  • Article Number: 3E922D29772

December 2008

Effect of leaf cutting on physiological traits and yield of two rice cultivars

Field experiments were conducted during two summer seasons 2003 and 2004 to study the effect of leaf cutting on physiological traits and yield of two rice cultivars hybrid (H5) (IR 70368 A /G 178) and inbred rice. The leaf cutting was followed from flag leaf as follows: 1.)  L; Control = without leaf cutting, 2.) L1; flag leaf cut, 3.) L2; second leaf cut, 4.)  L3; third leaf cut, 5.) L4; both flag leaf and...

Author(s):   Ali abdalla basyouni Abou-khalifa, A. N. Misra and Abd El- Azeem K. M. Salem

  • Article Number: 6E747D19780

December 2008

Watermelon production on stored rainwater in Sahelian sandy soils

Watermelon [Citrullus lanatus (Thumb) Matsun and Nakai ] is an important cash crop in West Africa where it is cultivated under rainfed conditions. The objective of this work was to identify best cultural practices for production of watermelons in the Sahel on stored rainwater in acid sandy soils. The experiments were carried out at the ICRISAT Sadore research center in Niger during two consecutive dry...

Author(s): D. Fatondji, D. Pasternak and L. Woltering

  • Article Number: 2C4CB5B9796

November 2008

Long term effect of Leucaena leucocephala on soil physico-chemical properties and fresh fruit bunch (FFB) production of oil palm

The study investigated a long-term effect of Leucaena leucocephala a leguminous tree crop on the soil physico-chemical properties and its possible effect on the fresh fruit bunch (FFB) production of oil palm. L. leucocephala had a highly significant (P<.01) effect on soil physico-chemical properties than the control.  The soil under Leucaena leucocephala exhibited relatively high...

Author(s): Imogie, A. E., Udosen, C.V., Ugbah, M. M. and Utulu, S. N.

  • Article Number: D5071079749

November 2008

RAPD and SSR analysis of wild oats (Avena species) from North West frontier Province of Pakistan

Genetic diversity of 10 biotypes of wild oats (Avena species) which differ in certain morphological and physiological characters were analyzed using 9 Randomly Amplified Polymorphic DNA (RAPD) and 2 Simple Sequence Repeat (SSR) primer sets. RAPD and SSR primers revealed different levels of genetic polymorphisms among the various biotypes. Range of genetic distances estimated by using individual primers was 0...

Author(s): Zahid Hanif, Zahoor A. Swati, Imtiaz Khan, Gul Hassan, K. B. Marwat, sabz Ali and M. Ishfaq Khan

  • Article Number: B860A529756

October 2008

Evaluation of crisphead lettuce cultivars (Lactuca sativa L.) for winter production in a soilless production system

Soilless cultivation of lettuce gained popularity in recent years in South Africa because of improved yield and quality. Thirteen crisphead lettuce cultivars were evaluated in a gravel-film production system during the winter season at the experimental farm of the ARC-Roodeplaat. The experiment was laid out as a randomized complete block design with five replicates. For each cultivar, yield, internal quality,...

Author(s): Maboko M. M. and Du Plooy C. P.

  • Article Number: 0DE43159699

October 2008

Exogenous ascorbic acid (vitamin C) induced anabolic changes for salt tolerance in chick pea (Cicer arietinum L.) plants

The effect of exogenous supply of ascorbic acid on growth and metabolic changes in chick pea under salinity treatment was carried out in pot experiment. The exogenous supply of ascorbic acid (4 mM) improved the fresh and dry matter gain in roots, shoots and leaves of chick pea (Cicer arietinum L.) Plants attenuated by the salt stress (40 mM NaCl) environment in the soil solution. Significant synergistic effect...

Author(s): Mohamed Salah Beltagi

  • Article Number: 24D03C59713

October 2008

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

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.

  • Article Number: 6663E2A9724

September 2008

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

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

  • Article Number: 017AF189615

September 2008

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

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

  • Article Number: 6853A579627

September 2008

Bioindicators in sustainable management of tropical forests in India

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

  • Article Number: E7F95C49635

September 2008

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

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

  • Article Number: 48C03109638

September 2008

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

  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

  • Article Number: ACD01E59650

August 2008

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

  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

  • Article Number: A873F512966

August 2008

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

  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

  • Article Number: F3D9AB83050

August 2008

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

  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

  • Article Number: E4FC5413005

July 2008

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

  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

  • Article Number: 53391FD2884

July 2008

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

  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.

  • Article Number: 4F95A6B2909

June 2008

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

  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

  • Article Number: 3EF387B2727

June 2008

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

  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

  • Article Number: DEC5E592806

June 2008

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

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

  • Article Number: 7124A752784

May 2008

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

  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

  • Article Number: 9FFE1812487

May 2008

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

  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

  • Article Number: F6D56122529

March 2008

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

  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

  • Article Number: 1BD39CD2429

March 2008

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

  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

  • Article Number: 38A4B412443

February 2008

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

  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

  • Article Number: 403F5CE2360

February 2008

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

  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

  • Article Number: 66A6EE92391

January 2008

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

    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

  • Article Number: 58C8F952283

January 2008

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

  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

  • Article Number: 35D8ADC2300

September 2007

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

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

  • Article Number: 7A494D62306

September 2007

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

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.

  • Article Number: 4AC9C192333

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