Research Papers/Topics in Plant Science

Screening Of Selected Bambara Nut (Vigna Subterranea (L.) Verdc ) Landraces For Tolerance To Fusarium Wilt And Its Management Using Farmyard Manure In Busia County, Western Kenya

ABSTRACT Bambara nut (Vigna subterranea (L.) Verdc.) is an indigenous legume crop in Kenya. Fusarium oxysporum f.sp voandzeia is a destructive fungal pathogen affecting Bambara nut in Kenya. An experiment was carried out in the green house and field to determine the incidence and severity of Fusarium wilt on local landraces and evaluate its management using goat farm yard manure (FYM). The field experiment was carried out in Busia County, where four villages (Bufisi, Bukati, Madola and ...

Identification And Management Of Root Knot Nematodes (Meloidogyne Spp.) Attacking Chickpea (Cicer Arietinum L.) In Nakuru County, Kenya Using Nematicides And Cultural Practices

ABSTRACT Root knot diseases are known to attack many crops especially legumes such as chickpea. Losses due to root knot nematodes (Meloidogyne spp.) in chickpea have been approximated at 13.7% of yield loss which translates to loss of billions of shillings annually. Four main Meloidogyne species; M. hapla, M. javanica, M. arenaria and M. incognita attack chickpeas. Experiments were conducted in the greenhouse to characterise, identify and control Meloidogyne spp. causing root knot disea...

Seed Health Testing For Nine Cultivars of Sorghum bioclor L. in Gadarif Area

This study was conducted in both laboratories of plant pathology and tissue culture in College of Agricultural Studies, Sudan University Science and Technology Nine cultivars of Sorghum bicolor collected from Gadarif area were tested for the presence of seed borne fungi. The cultivars were Mugudahmer, Wadahmed, Wadakar. Arfaagadamac, Hageen, Tetron, Dabar, Fatarita and Tabet. Seed health testing included dry inspection in which the seeds were divided in...

Non-Composted And Spent Mushroom Substrates For Production Of Agaricus Bisporus

ABSTRACT Commercial production of Agaricus bisporus is dependent upon a substrate prepared by composting. Traditional composting is associated with a number of environmental problems such as the emission of offensive odors and waste water run-off during handling. In addition, after the production of a crop of mushrooms, there is the problem of disposal of spent mushroom substrate (SMS). Thus, preparation of a suitable substrate for mushroom production without the generation of offensiv...

Evaluation Of Indigenous Namibian Mushrooms And Plants For Antimalarial Properties

ABSTRACTMalaria is a parasitic disease caused by Plasmodium species and transmitted by Anopheles mosquitoes. The disease is currently ranked high among the most problematic infectious diseases around the world. Despite the significant progress that has been made toward reducing the global burden of malaria, it remains one of the most significant public health threats in sub-Saharan Africa and many other parts of the developing world. Current malaria control measures have adverse environmental...

Influence Of Plant Resistance And Nematicides On Growth And Yield Of Tomato (Lycopersicon Esculentum) And On Population Dynamics Of Root-Knot Nematodes (Meloidogyne Incognita With An Associa

Abstract Both growth chamber and field experiments were conducted to study the influence of resistant tomato cultivars and applications of Vorlex (DD MENCS) on the population dynamics of root knot nematode species and growth and yield of subsequent crops of a susceptible tomato 3 3 cultivar. Four initial M. incognita inoculum densities (10 , 5 x 10 , 104 and 105 eggs/500 orT of soil) and two initial M. hapla inoculum o o o ^ densities (10 and 5 x 10 eggs/500 cm of soil) were used. Two...

The diet of the black mongoose (galerella nigrata) (carnivora: herpestidae) in north-west (hobatere concession) and north-central (erongo conservancy), namibia.

ABSTRACT The black mongoose (Galerella nigrata) (Carnivora: Herpestidae) is a diurnal predator that favours rocky habitats. It is endemic to southwest Africa. Due to its elusive behaviour, the ecology of the black mongoose has not been studied and only little ecological information is documented about this species. The general objective of this study was to determine the diet of the black mongoose from Erongo, north-central and Hobatere in northwest Namibia through a faecal analysis. Sev...

Evaluation Of The Quality Characteristics Of The Marama Bean (Tylosema Esculentum), An Underutilized Grain And Tuber Producing Legume In Southern Africa

ABSTRACT The potential of the Marama bean plant, Tylosema esculentum (Burch.) Schreiber, a drought-tolerant, bean–bearing legume, native to Southern Africa, was investigated to potentially form part of a food-based approach in rural agricultural extension programmes. Nutrient content and sensory attributes of roasted Marama beans were determined as well as the potential of the Marama plant as fodder for cattle. Chemical analyses were performed on roasted Namibia and Botswana Marama be...

Influence Of Site And Soil Type On The Distribution Of Anthrax Infectious Sites And The Contribution Of Anthrax To Elephant Mortality In Etosha National Park, Namibia

ABSTRACT Bacillus anthracis, a soil-borne pathogen, causes the deadly zoonotic disease anthrax. Anthrax outbreaks occur frequently in Etosha National Park (ENP). ENP has nine major soil types and a distinct rainfall gradient decreasing from east to west. The sporulation success of B. anthracis is believed to be influenced by soil type, but the influence of soil type and site along a rainfall gradient on the persistence of B. anthracis in the soil is unknown. The present study investiga...

A Taxonomic Revision Of The Genus Pentatrichia (Asteraceae)

ABSTRACT A new revision of the genus Pentatrichia Klatt is presented here. Morphological data from previously described taxa: P. alata S.Moore, P. avasmontana Merxm., P. petrosa Klatt and P. rehmii (Merxm.) Marxism. were subjected to both univariate and multivariate statistical methods. Both herbarium material and voucher specimens collected during fieldwork were examined. Morphological character data were analysed by Unweighted Pair-group Method Arithmetic Average (UPGMA) clustering a...

Isolation And Characterization Of Starch, Starch Biosynthetic Genes And Protease Inhibitors From Marama Bean (Tylosema Esculentum)

ABSTRACT Marama bean (Tylosema esculentum) is a highly nutritious plant and is currently regarded as a prospective crop for the future in arid zone agri-ecologies of the world. Starch is a major storage component in higher plants and in marama bean it’s mostly found stored in the tuber. Starch is used in both food and non-food industries. Starch biosynthesis involves groups of committed enzymes. Aims of the present study were to determine the physicochemical and pasting properties of ...

Screening Maize (Zea mays L.) Germplasm For Nonparasitic Weed Tolerance in A Tropical Rainforest Agro-Ecology

Abstract The study determined genotypic effect of weed infestation on maize germplasm, identified plant traits conditioning weed-stress tolerance, and identified maize varieties that are weed-stress tolerant for further improvement under weed infestation with a view to providing information on the genetics of weed-stress tolerance in maize. The study was carried out at the Teaching and Research Farm of Obafemi Awolowo University, Ile-Ife, in the early and late rainy seasons of 2018. One...

Screening of Some Common Weeds for Nematicidal Activities Against The Root-Knot Nematode on Tomato (LYCOPERSICUM ESCULENTUM L.) in Plateau State Nigeria.

ABSTRACT The screening of some common weeds for nematicidal activities on Meloidogyne incognita infestation on tomato (Lycopersicum esculentum L.) was carried out at the Botanical nursery and Biology Laboratory, Plateau State Polytechnic, Barkin ladi, Nigeria, with a view to establishing their potential for organic amendment or as trap weeds for the control of Meloidogyne incognita. The common weeds were surveyed and identified by a taxonomist based on botanical nomenclature and voucher...

EVALUATION OF SWEET POTATO (IPOMEA BATATAS, L.) CULTIVARS AND ADVANCED BREEDING LINES FOR RESISTANCE TO TWO ROOT-KNOT .NEMATODE SPECIES (M. INCOGNITA & M. JAVANICA)

ABSTRACT by Conrad K. Bonsi Several sweet potato cultivars and advanced breeding lines were screened in both the greenhouse and a heavily nematode infested field for resistance to root-knot nematode species (Meloidogyne incognita and Meloidogvne javanica). Two greenhouse methods, "The Bed Method" and "The Improved Method" were used for indoor investigations. A heavily nematode infested field was used for outdoor investigations. The infestation in the field had been built up over a per...

GENETIC ANALYSIS OF GRAIN YIELD AND OTHER TRAITS OF EARLY MATURING PROVITAMIN A- QUALITY PROTEIN MAIZE INBRED LINES UNDER DROUGHT AND LOW SOIL NITROGEN CONDITIONS

ABSTRACT Early maturing provitamin A (PVA) quality protein maize (QPM) hybrids with combined drought and low soil Nitrogen (low-N) tolerance are needed to address malnutrition and food insecurity problems in sub-Saharan Africa (SSA). In response to this need, PVA-QPM inbred lines with drought and low-N tolerant genetic backgrounds were developed through the concerted effort of the International Institute of Tropical Agriculture Maize Improvement Program (IITA-MIP) for hybrid development...


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