Qualitative traits diversity and eco-geographical distribution in finger millet (Eleusine coracanaGURE subsp. Coracana) landraces from eastern and south eastern Africa: An implication for germplasm collection and conservation
October 2012
One hundred and forty four finger millet landraces collected from different regions of Ethiopia and some introduced from Kenya, Eritrea, Zambia and Zimbabwe were planted with six improved varieties in randomized complete block design at...
Bio-nutritional constituents of coconut fruit and its possible medicinal applications
September 2012
Analysis of constituents of coconut fruit for nutritional and medicinal purposes for people from diverse culture was done to establish the scientific claims for its diverse medicinal applications. The concentrations of glucose, calcium, potassium, sodium, iron, zinc along with that of vitamins C and E in the coconut milk and oil were determined using standard laboratory methods, while pH and specific gravity of coconut...
Assessment genetic variation and relationship of sago palm (Metroxylon sagu Rottb.) in Indonesia based on specific expression gene (Wx genes) markers
September 2012
Starch production of sago palm based on physical and chemical properties were observed in a large variation in the previous study. The important gene markers used forthe assessment of the genetic variation and relationships which is related to the starch production is wx gene markers. The generating data based on the Wx gene markers were described in 8 alleles and 14 genotypes on sago...
Microtuberization of Ceropegia spiralis Wight and Ceropegia pusilla Wt. and Arn.
September 2012
The ability of Ceropegia spiralis Wight and Ceropegia pusilla Wight and Arn. to form microtubers in vitro was studied, to conserve these endemic and endangered species. Murashige and Skoog’s (MS) medium supplemented with various concentrations of cytokinins and auxins supported induction of two types of microtubers, that is, basal and aerial tubers. The nodal explants of C....
Influence of aseptic seedling explants on in vitro shoot multiplication of Caralluma adscendens var. attenuata Wight
August 2012
A protocol has been developed for in vitro shoot multiplication and plant establishment ofCaralluma adscendens var. attenuata. Aseptic seedlings raised on Murashige and Skoog (MS) basal medium were used as a source of explants. Among different seedling explants cultured on different basal media, nodal explant on MS basal medium supplemented with BA 2 mg/L gave best shoot regeneration frequency. Nodal...
Novel source of sorghum tolerance to the African stem borer, Busseola fusca
August 2012
Sorghum (Sorghum bicolor) is an important cereal food crop in semi-arid tropics, but its productivity is curtailed mainly by insect pests and diseases. The African stem borer,Busseola fusca Fuller (Lepidopteran: Noctuidae), is among the most injurious pests of sorghum in sub-Saharan Africa and is responsible for >15% sorghum grain yield losses. Sorghum from India with records of stem borer...
Distributional pattern of Asteraceae along a spatial gradient in urban and suburban areas of Lahore City, Pakistan
August 2012
Ecological significance of Asteraceae in response to common colonizers due to the fast pace of urbanization in Lahore District was determined. The species are natural colonizers in this area. In order to gauge the response, sites from both urban and suburban areas were selected. A total of 28 species under 22 genera of the family Asteraceae were collected and identified. The results reveal that members of Asteraceae...
Allelopathy in aquatic macrophytes: Effects on growth and physiology of phytoplanktons
July 2012
The present review discussed allelophatic effects of aquatic macrophytes on phytoplankton with emphasis on growth and physiology; and also indicates implication for control of invasive aquatic macrophyte and phytoplankton species. In view of the fact, inhibition of phytoplankton by allelochemicals released by macrophytes is supposed to be one of the mechanisms that contribute to stabilisation of clear-water states in...
Propagation and growth from cultured single node explants of rosa (Rosa miniature)
July 2012
Roses are one of the world's most important ornamentals for a long time and are most often used for ornamental, medicinal and aromatic purposes. A method for the proliferation and growth of rose (Rosa miniature) was developed. First to seventh nodal explants from young healthy shoots were excised and cultured on basal medium of Murashige and Skoog (1962, MS) containing several concentrations of Benzyl amino...
Analysis of pathogen virulence of wheat stem rust and cultivar reaction to virulent races in Tigray, Ethiopia
June 2012
Wheat stem rust caused by Puccinia graminis f. sp. tritici is amongst the biotic factors which can cause up to 100% yield loss during epidemic years. The highland of Ethiopia is considered as a hot spot for the development of stem rust diversity. This study was carried out to analyze the virulence diversity of P. graminis f. sp. tritici and evaluate the seedling reaction of...
Effect of exposure time of fast neutron irradiation on growth and yield parameters of Capsicum annum and Capsicum frutescens
June 2012
In order to assess the effect of fast neutron irradiation (FNI) on growth and yield parameters of Capsicum annum and Capsicum frutescens, 400 dry seeds of each species were exposed to FNI from an Americium Beryllium source with a flux of 1.5 ×104 n.cm2/s for five irradiation exposure...
Genetic divergence in mustard (Brassica spp. L)
April 2012
A field experiment was conducted with 25 mustard (Brassica spp. L) genotypes on the farm of Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh from November 2009 to February 2010, to study the genetic diversity present among the genotypes. Eleven quantitative characteristics, namely plant height, days to 50% flowering, days to maturity, number of primary branches per plant, number of...
A viewpoint toward farm management and importance of barberry in sustainable rural livelihood in desert regions in east of Iran
April 2012
This study was to determine the mechanism underlying the hypoglycaemic activity of the aqueous extract perfusion of rosemary in normal and streptozotocin-induced diabetic rats. The sugar level and lipid profile were investigated in plasma of normal andstreptozotocin-induced diabetic rats treated with rosemary for four weeks. Diabetic rats exhibited an increase in the levels of sugar, cholesterol, triglycerides...
Effects of rosemary on lipid profile in diabetic rats
April 2012
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Influence of bulb topping and intra row spacing on yield and quality of some shallot (Allium Cepa Var. Aggregatum) varieties at Aneded woreda, western Amhara
March 2012
Lack of improved varieties and production practices have been the bottlenecks of shallot productivity in Amhara region. Bulb topping have been traditionally practiced among shallot growers in the region though its importance remained controversial among interested groups worldwide. There was no recommended spacing for shallot in the study area and farmers used to practice broadcasting. Thus, a field experiment was...
Limonene synthase gene expression under different concentrations of manganese in Cuminum cyminum L.
March 2012
Semi-quantiative real time polymerase chain reaction (SQ-RT-PCR) was applied to study Limonene synthase (LS) gene expression pattern and the response to different concentrations of manganese in different organs of cumin (Cuminum cyminum L.). The results revealed that the gene was expressed in very small (< 2 mm) and small (3-4 mm) flowers and also in shoots, while it was not expressed in roots, leaves, medium...
Effect of oil types as pollutants on physiognomic characteristics of Gmelina arborea in the tropical rainforest zone of Nigeria
March 2012
The research was designed at studying the effect of oil pollution on the physiognomic characteristics of Gmelina arborea and the pollutants used are diesel oil and spent engine oil respectively. The experiment lasted for 6 months before analysis was done. Five treatments were carried out separately for diesel oil and spent engine oil in which the application of pollutants was at the rate 0, 400, 800, 1200 and...
Evaluation of some okra (Abelmoschus spp L.) germplasm in Ghana
March 2012
Twenty-five accessions of okra collected from different parts of Ghana were evaluated for their horticultural and agronomic attributes in the major and minor cropping seasons of 2008 at the crop and soil sciences experimental field, Kwame Nkrumah University of Science and Technology (KNUST) Kumasi, Ghana, using a randomized complete block design (RCBD) with four replications. The objectives of the experiment were...
A study of the initial establishment of multi - purpose moringa (Moringa oleifera Lam) at various plant densities, their effect on biomass accumulation and leaf yield when grown as vegetable
February 2012
A field study was carried out to evaluate the effect of different plant spacing on growth, biomass accumulation and initial establishment of Moringa oleifera multi-purpose tree. This was a one factor experiment comprising of five different plant spacing carried out in randomised design (RCBD) in three blocks at the University of Zimbabwe, Crop Science Department. The main objective of this study was to...
Growing ecologically clean potato seed material
February 2012
The article showed the results of raising the coefficient of tubers reproduction due to the thickness of the planting and mass of the seed material. It was found out that to raise the coefficient of potato tubers reproduction in the system of seed growing in the optimal fertilizing area of 70 × 15 m2 and average mass of the planting tuber 30 to 50 g, it is purposeful to raise the thickness of the per hectare to...
Effects of soil nutritional status on seedling nursery performance of Arizona cypress (Cupressus arizonica var arizonica Greene) and Medite cypress (Cupressus sempervirens var. horizantalis (Mill.) Gord)
February 2012
The present research was carried out to determine the influence of different combinations of organic matter as growing media on seed germination, survival, growth, biomass and performance of needle-leaved Arizona cypress (Cupressus arizonica var arizonica Greene) and Medite cypress (C. sempervirens var. horizantalis (Mill.) Gord) seedlings in Koloudeh nursery, located in Amol city...
The position of Pinus roxburghii in the forests of Kotli hills, Azad Jammu and Kashmir
February 2012
Thirteen plant communities were recorded from Kotli hills during Monsoon, 2010 to see the present position of Pinus roxburghii. The data show that in six communities P. roxburghii was purely dominating while in two communities P. roxburghii occurs in association with Themeda anathera, Olea ferruginea and the remaining five communities were dominated by Adhatoda zeylanica, Acacia...
An ethnoveterinary survey of medicinal plants used to treat livestock diseases in Seharti-Samre district, Northern Ethiopia
February 2012
Ethnoveterinary medicine is frequently used for treating livestock diseases by many different ethnic groups in Ethiopia. Nearly 90% of livestock population in Ethiopia use plant based traditional medicines as their major health care system. This study was conducted to identify ethnoveternary medicinal plants used for the treatment of livestock ailments in Seharti-Samre district, northern Ethiopia. Ethnoveterinary data...
Studies on the prospects and some problems of sand dune vegetation at the fragile coastal zones of West Bengal and Orissa, in Eastern India
January 2012
Platostoma africanum P. Beauv. is a tropical plant species valued for its efficacy in traditional medicinal system in West Africa. Although studied for its chemical properties, no cytogenetic study has been reported on this plant species. Axillary buds obtained from the growing plants were used to conduct mitotic study. Results obtained in this study showed that P. africanum is a diploid species with...
Effect of soybean (Glycine max) leaf extracts on germination and early growth of speargrass (Imperata cylindrica (L.) Reauschel
January 2012
Allelopathy in plants can be instrumental in the suppression of weeds in a crop-weed interaction. Soybean has been found to exhibit allelopathetic effects by inhibiting speargrass germination and subsequent growth. The results showed that soybean and velvet bean extracts significantly reduced speargrass germination by 46 and 54% respectively. There was significant reduction in shoot and root length of speargrass by 37...
Investigation of the effect of salt stress on the antioxidant enzyme activities on the young and old leaves of salsola (Stenoptera) and tomato (Lycopersicon esculentum L.)
January 2012
We can define all negative factors affecting plant growth as stress. We can say that one of the most important problems among stress factors is salt stress. Although, many researches have been done regarding the effects of salt stress, especially the different responses to salt stress among young and old leaves are being investigated nowadays. For this purpose, responses to salt stress on young and old leaves of salsola...
Study on florets harvest effects on grain and oil yields and their components in safflower (Carthamus tinctorius)
January 2012
We can define all negative factors affecting plant growth as stress. We can say that one of the most important problems among stress factors is salt stress. Although, many researches have been done regarding the effects of salt stress, especially the different responses to salt stress among young and old leaves are being investigated nowadays. For this purpose, responses to salt stress on young and old leaves of salsola...
Yield stability of stem borer resistant maize hybrids evaluated in regional trials in east Africa
January 2012
Twenty-seven stem borer-resistant maize hybrids and three checks were evaluated in 14 locations in Kenya and Ethiopia to study the genotype x environment interaction (GEI) and yield stability. An analysis of variance was conducted for grain yield, number of days to silking, plant height, ear height and grain moisture content, and reaction to turcicum leaf blight, gray leaf spot, maize streak virus diseases and common...
Determination and comparing of the essential oil components in wild and cultivated populations of Thymus kotschyanus Boiss. & Hohen
January 2012
Thymus kotschyanus Boiss. & Hohen. is a grassy, permanent herb which belongs toLabiatae family and grows wild in some regions of Iran including West Azarbaijan province. In this study, variations in the quantity and quality of the essential oils of wild and cultivated populations of T. kotschyanus are reported. The aerial parts of T. Kotschyanus at the beginning of flowering stage (20%...
Karyotype characterization of Platostoma africanum P. Beauv. in Southeastern Nigeria
January 2012
Platostoma africanum P. Beauv. is a tropical plant species valued for its efficacy in traditional medicinal system in West Africa. Although studied for its chemical properties, no cytogenetic study has been reported on this plant species. Axillary buds obtained from the growing plants were used to conduct mitotic study. Results obtained in this study showed that P. africanum is a diploid species with...
Validation of the use of secondary traits and selection indices for drought tolerance in tropical maize (Zea mays L.)
January 2012
Breeding progress for drought tolerance in maize has been slow since drought tolerance is a complex trait controlled by many genes. Breeders improving maize for drought tolerance have therefore been using secondary traits and selection indices for selecting the best genotypes under drought stress. The objectives of this study were to determine the combining ability of the inbred lines in stress and non stress...
Response of tomato (Solanum lycopersicon) to cadmium toxicity: Growth, element uptake, chlorophyll content and photosynthesis rate
January 2012
The effect of cadmium (Cd) accumulation on mineral composition in roots and shoots, growth development, chlorophyll and water content of tomato (Solanum lycopersiconMill 63/5F1) seedlings was tested under doses of 0 (control), 10, 50 and 100 µM. Cadmium accumulation was defined by elevated concentrations as 50 to 100 µM in root and shoot tissues. Element uptake by roots and shoot was negatively affected...
Effects of food spices on Gram-negative food indicator bacteria from some Nigerian ethnic fermented plant food condiments
January 2012
Varied but multiple antibiotic resistance rates were exhibited by all the foodborne indicator bacterial species, Citrobacter, Escherichia coli, Enterobacter, Klebsiella,Morganella morganii, Salmonella, Shigella, Pseudomonas isolated from four most-popular Nigerian indigenous fermented plant food condiments ogiri, iru, okpehe andugba. The generally...
Vegetation and flora dynamic of the fallow of the national centre of floristic (NCF) of Cocody-Abidjan University (Ivory Coast)
January 2012
The flora and the vegetation of the fallow of the National Centre of Floristic (NCF) were analyzed 14 years after first inventory was carried out in 1995. The objective of this study was to evaluate the evolution of the flora and the vegetation of the fallow of the NCF. Thus, the fallow was divided into 4 layers representing each one with homogeneous plot. The methodology of inventory adopted is the combination of the...
A community analysis of Quercus baloot Griff, forest District Dir, Upper Pakistan
January 2012
Twenty-two relatively undisturbed Quercus baloot dominating stands were surveyed on different physiographic situations in district Dir upper Pakistan. The purpose of the study was to investigate the types and structure of plant communities and ecological status ofQ. baloot using agglomerative cluster analysis and detrended correspondence analysis (DCA ordination). The distribution pattern and influential...
Genotype × season interaction and characters association of some Sesame (sesamum indicum L.) genotypes under rain-fed conditions of Sudan
January 2012
The experiment was carried out at Gedarif Agricultural Research Station Sudan, during the rainy seasons 08/09 and 09/2010, to estimate the genotype x season interaction and to asses the characters association for seven sesame genotypes. A randomized complete block design with four replicates was used. The...
Pollen morphology of Tacca leontopetaloides (L.) Kuntze in Nigeria
January 2012
The pollen of Tacca leontopetaloides collected from four different locations across Nigeria was prepared and studied under the light microscope. The exine pattern was observed to be fairly striate in all samples from the four different locations, while all the grains were monosulcate. Based on the polar axis size, the pollen sample from Akoko (sample A) was small sized, while the rest are medium sized. The...
Innovations in resource management for sustainable rice based farming
December 2011
Agricultural practice cannot be sustainable unless and until it is improving or at least conserving the natural resource base. There is need for a shift in outlook of viewing only the immediate benefits of farming practices. Rather, farming practices should be judged in terms of its effects on natural resources and environment, besides benefits in terms of yield and quality. Some ways and means of managing external...
Response of Ethiopian durum wheat genotypes to water deficit induced at various growth stages
December 2011
Understanding the effect of water stress on yield and its components is the essential step in developing of high yielding and stable genotypes. Substantial reduction in grain yield can be caused by water deficit depending on the intensity, duration and the developmental stage at which water stress occurred. An experiment was conducted in the lathouse at Sinana Agricultural Research Center in...
Yield potential evaluation and path analysis of different sesame genotypes under various levels of iron
December 2011
In order to evaluate yield potential of different genotypes of sesame under different levels of iron micronutrient and determinate the most effective traits on the yield, the experiment was carried out as split plot based on randomized complete block design at Jiroft during 2008. Treatments consisted of three levels of Fe fertilizer (chalet 138) (0, 5 and 10 kg/ha) as the main factor and different genotypes of sesame...
Sunflower seed invigoration by chemical manipulation
December 2011
Sunflower (Helianthus annuus L. cv. Morden) seeds lose viability at a rapid pace under accelerated ageing (AA) condition. Pretreatment of the seeds with salicylic acid and ascorbic acid for 8 h before imposition of accelerated ageing treatment in desiccator (99.1% RH and 32 ± 2°C) or continuous treatment of the seeds with Eucalyptus oil vapour for 60 days in a separate desiccator under the same...
Effect of storage temperature and packaging materials on seed germination and seed-borne fungi of sorghum (Sorghum bicolor (L.) Moench.) in South West Nigeria
December 2011
A laboratory experiment was conducted at Ibadan, Nigeria to determine the effect of storage temperature and packaging materials on the germination and associated seed-borne fungi of two accessions of sorghum seed (NG/SA/07/0194 and NGB/08/0270). The seeds were stored at three different storage temperature (gene bank temperature -5°C), freezing temperature (-20 ± 2°C) and ambient temperature (25 ±...
Interaction between maize phenology and transgenic maize hybrids on stalk rots following European corn borer infestation
December 2011
Field studies were carried out at Hoytville and Wooster, Ohio, USA from 2006 to 2008 to determine the influence of planting date and transgenic Bt maize on incidence and severity of stalk rots of maize. Transgenic and non-transgenic Bt maize hybrids with different maturity ratings were planted on late April/early May, mid-May and early June each year. The incidence and severity of the maize stalk rot complex were...
Volatile constituents of essential oils isolated from different parts of Alpinia calcarata Rosc
December 2011
The essential oils isolated from different parts of Alpinia calcarata Rosc. growing in Chittagong, Bangladesh, were analyzed by gas chromatography-mass spectrometry (GC-MS). The leaf oil contained 1,8-cineole (28.48%) and camphor (21.40%) as the major constituents. The stem sheath oil had fenchyl acetate (19.16%) and carotol (16.77%) as the major compounds. On the other hand, the root oil...
Effect of calcium, magnesium, sodium and potassium on farm plantations of various agroeclogical zones of Punjab, Pakistan
December 2011
The immense impact of trees in the development of a country cannot be denied and over-emphasized. Pakistan has a narrow forest resource base extending over only about 4.8% (4.59% excluding farmland plantations) of its area, which is insufficient to provide the material needs for the growing population, expanding and to retard and arrest the ongoing environmental and ecological degradation process. Based on...
Appraisal of methods for assessing black Sigatoka resistance in diploid banana populations
December 2011
Three black Sigatoka assessment protocols, (i) assessing disease severity 6 months after planting, (ii) estimating disease development over time in the different accessions, and (iii) assessing the youngest leaf spotted (YLS) at flowering were appraised. The assessment was implemented on 18 diploid accessions together with susceptible and resistant checks, planted in a 4 × 5 rectangular lattice design with two...
Early tests on tolerant kabuli chickpea (Cicer arietinum L.) genotypes selection for drought stress
November 2011
In order to determine early selection parameters for drought stress tolerance, an experiment was carried out, in situ, in pots under controlled climatic conditions. Drought stress tolerance of eight “kabuli” chickpea type accessions (Béja1, Amdoun 1, Nayer, Kasseb, Bochra, FLIP96-114C, FLIP88-42C and ILC3279) was evaluated with four amounts of irrigation: 100, 75, 50 and...
Cost analysis of on-farm adaptive research (OFAR) as a strategy for Hevea technology transfer in the rubber belt of Nigeria
November 2011
Change of some defense compounds of cucumber treated with Bacillus cereus and salicylic acid against Meloidogyne javanica
November 2011
In this research, the effects of antagonist bacterium (Bacillus cereus) and salicylic acid (SA) as chemical inducer alone and in combination against root knot nematode (Meloidogyne javanica) as the most important nematode in Iran, on cucumber roots (cv. superdominus) was investigated. The used concentrations were 109 cfu/ml for bacteria and 5 mM for SA. In greenhouse experiments some parameters were...
Mitotic chromosome studies of some accessions of African yam bean Sphenostylis stenocarpa (Hochst. Ex. A. Rich.) Harm.
November 2011
In this study the chromosome number, chromosome length and mitotic indices of 21 accessions of African Yam Bean (AYB) were determined. To accomplish this, the best time to harvest growing root tips was identified by measuring mitotic index of chromosomes prepared from root tips of accession TSs148 collected at two hours interval within a 24 h study period from 8 am to 6 am of following day. Cell division occurred...
Page 11 of 17, showing 50 records out of 816 total, starting on record 501, ending on 550
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