Nigerian Journal of Horticultural Science最新文献

{"title":"Growth of Lemon ( Citrus Limon L. Buru) in response to Water Stress and shading","authors":"I. Aiyelaagbe, N. Keutgen, G. Noga","doi":"10.4314/NJHS.V10I1.3403","DOIUrl":"https://doi.org/10.4314/NJHS.V10I1.3403","url":null,"abstract":"A greenhouse study was conducted to determine if the effects of water stress and shade on the growth of lemon are interactive or independent. The main effects of water stress significantly decreased number and surface area of young and old leaves, fresh and dry weight of leaves, flushes and whole plants as well as proportion of dry matter partitioned allocated to leaves. The main effects of shade significantly decreased number and surface area of young leaves, canopy volume, as well as fresh and dry weight of young leaves, flushes and whole plant. Water trees generally had more severe effects than shade. The interactive effects of water stress and shade were significant for fresh and dry weight of young leaves and whole plant. Since total dry matter accumulation is a very important growth index, the effects of water stress and shade on the vegetative growth of lemon are considered interactive. Keywords : Citrus, ‘Eureka', lemon, shade, water stress, vegetative growth. Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 12-17","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117282351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Tomato Culktivar for resistance to wilt disease and their host efficiency to Meloidogyne Incorgnita Infestation","authors":"E. Nwanguma, O. Denton, O. Adebayo, F. Adeyemo","doi":"10.4314/NJHS.V10I1.3406","DOIUrl":"https://doi.org/10.4314/NJHS.V10I1.3406","url":null,"abstract":"Field and screen house studies were conducted to evaluate the resistance of some tomato cultivars to wilt diseases in Meloidogyne incognita Race 2 naturally infested soil and to test their host efficiency to the nematodes infestation. Five-week old tomato seedlings from each cultivar raised in steam-sterilized soil were transplanted into plots naturally infested with species of plant-parasitic nematodes. The experimental design was a randomized complete block replicated four times. In the screen house trial, five-week old seedlings from each cultivar raised in steam-sterilized soil were transplanted into plastic pots (22.5 cm diameter). Eggs of M. incognita were extracted from pure cultures of the nematodes earlier raised on Celosia argentea L. plant using the chlorox method of extraction. Each seedling was infested with 10,000 eggs of the nematodes. The experiment was laid-out in a completely randomized design with three replications. In the field trials, there were significant incidences of tomato wilt among the tested lines. Three cultivars Tomato-Dalila, Tomato-Akash and Indam-2103 showed tolerance to wilt infection with a range of 9.8 % to 19.7 % seedling loss in 2003 and 2004 respectively. Severities of roots damage caused by nematodes were significantly low in the two field trials. In the screen house evaluation however, none of the cultivars was immune or resistant. The host efficiency test showed that all the tested cultivars were efficient hosts to M. incognita. Growth and yield assessment of the cultivars under field conditions indicated that cultivar F13109 flowered earliest (69.7 days) in 2003 and 72.1 days in 2004 while INDAM-2107 recorded the best luxuriant growth (vigour) in 2004. The highest number of fruit-set per flower cluster was observed in F143 in 2003 and 2004. Cultivar F13019 recorded significantly the highest number of fruits (169.3 and 143.3) while the heaviest weight was observed in AKASH (2.24 kg and 2.7 kg) respectively in both trials. Tomato-Marina recorded statistically the lowest numbers (9.6 and 11.17) and weights (0.23 kg and 0.73 kg) of fruits respectively in both evaluations. Keywords :Meloidogyne incognita Resistance, Tomato, Wilt disease. Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 30-37","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134119099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Economic Analysis of the Marketing of Fruit in Lagos State of Nigeria (A case study of Oyingbo, Oshodi and Ikotun Markets)","authors":"O. Ajani","doi":"10.4314/NJHS.V10I1.3407","DOIUrl":"https://doi.org/10.4314/NJHS.V10I1.3407","url":null,"abstract":"The study focused on the processing and marketing of fruits in Lagos State. Data for the study were obtained from three markets namely Oyingbo, Oshodi and Ikotun markets in Lagos State, Nigeria using structured questionnaires, simple random sampling technique was used to collect data from sixty marketers with 20 marketers selected from each market. The data collected was analyzed using inferential and descriptive statistics to show the socio-economic characteristics of the marketers and processors of fruits and to estimate the marketing margins, net margins and profitability at different levels of marketing.\u0000\u0000Results revealed that tomatoes had highest marketing margin of 39.90 % and 41 % at both the wholesale and retail levels in the three markets. This implies a wide gap in prices between wholesalers and retailers. The study also revealed that fruits are cheapest in Oyingbo market. The least marketing margin was recorded in the sales of bananas at the wholesale level (19 %) and oranges (18.09 %) at the retail level. This implies a higher marketing efficiency in some fruits (banana) than another (tomatoes) because a higher percentage marketing margin shows lower marketing efficiency.\u0000\u0000Majority of the traders lack basic formal education. This hinders marketing efficiency, due to the fact that they do not keep records of day to day financial activities. This also prevents them from obtaining loan from financial institutions. Traders in the study areas mainly got their initial take-off capital from personal savings, friends and local lending agents. Capital is not readily available for further expansion. Lack of good and cheap means of transportation has posed a serious threat to the traders. This is due to frequent fuel scarcity, long distance from point of production, poor roads and dilapidating condition of existing roads. Recommendations include training marketers on simple preservation techniques, introducing uniform and standard weights as well as provision of storage facilities, in a bid to minimize variations in prices of fruits.\u0000 Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 38-46","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116272095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of split application of organo-minerals fertilizers on Okra growth nutrient uptake and fruit yield","authors":"W. Akanbi, A. Togun, J. Adediran, O. Olabode, A. Olaniyan, J. Olaniyi","doi":"10.4314/NJHS.V9I1.3387","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3387","url":null,"abstract":"In two seasons and at two locations, the effects of maize stover compost in combination with mineral fertilizer and their methods of application on growth, nutrient uptake and yield of okra was studied. The treatments used are recommended dose of NPL mineral fertilizer, (60kg N + 30kg P 2 O 5 + 20kgK 2 O) recommended dose of N through compost. (4t/ha). Half recommended dose of N each through compost (2t/ha) and mineral fertilizer (30ka/ha) and non-fertilized control. Sub-treatments included three timing (single, 2- and 3- split) of application of the fertilizer combination. The tallest plants of 46.7cm and widest leaf of 3011.0cm 2 /plant were obtained with the use of 4t/ha maize stove compost. This rate equally produced the highest percent fruit set (85%) and mean fruit weight of 148.4g. The result indicated that crop performance under 4t/ha compost application rate was as effective as the combine use of 2t/ha compost + 30kg N/ha mineral fertilizer. With regard to timing of fertilizer application, 2 split application increased the efficiency of the fertilizer use. The results of the investigation further indicated that highest crop growth, nutrients uptake and fruit yield could be realized by combine application of 2t/ha compost and 30kg N/ha fertilizer. The efficiency of the fertilizer could be increased through 2-split application of the fertilizer combination. Keywords : Manure, fertilizer, okra and method of fertilizer application, tomato yields Nigerian Journal of Horticultural Science Vol. 9 2005: 102-109","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121338765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agronomic characteristics of Bungu ( Cerototheca sesamoides Endl. ): effects of age at harvest on components of yield and the nutritive value of the leaves","authors":"K. Fasakin, J. Olofintoye","doi":"10.4314/NJHS.V9I1.3371","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3371","url":null,"abstract":"Four different ages at harvest were tested to determine the effects of age on the leaf yield and the nutritive values of the tall and the dwarf cultivars of bungu ( Ceratotheca sesamoides Endl. ) in the southern Guinea savanna environment of Ilorin, Kwara State of Nigeria. Means of two years results indicated that although leaf and shoot yields per plant and leaf to shoot ratio in the two cultivars were similar, leaf and shoot yields per m 2 of land were higher in the tall (1.64kg, 5.35kg) than in the dwarf cultivar (0.97kg, 3.38kg). Generally, as age increased from 7 to 9 weeks, number and total length of branches, and number of leaves per plant also increased, and thereafter the increases were no longer significant. Leaf area per plant and leaf area index in the two cultivars were similar between 7 and 9 weeks of age. The highest leaf and shoot yields per plant (5.48g, 18.73g) and per m 2 of land (1.49kg, 5.16kg) were obtained at 9 WAP. The levels of crude protein and total ash in the tall and the dwarfish cultivar, respectively, were significantly higher at 7WAP (protein: 33.68%, 34.65%; ash: 10.75%, 13.00%) than at 8 9,and 10WAP. Keywords : bungu, age at harvest, leaf yield, nutritive value Nigerian Journal of Horticultural Science Vol. 9 2005: 2-6","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125797329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of organic soil amendments on the population of meloidne incognita on Okra in South Western Nigeria","authors":"E. Nwanguma, B. Fawole","doi":"10.4314/NJHS.V9I1.3385","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3385","url":null,"abstract":"The efficacy of organic soil amendments on the populations of Meloidogyne incognita on okra were investigated in two field trials. Organic wastes comprising fresh poultry mature, crowding, fruits peelings and sawdust were each ploughed 15cm into the soil at the rates of 0,4, 8 and 16th/ha, respectively, most significant suppressive effect on soil and root nematode populations. The populations observed in sawdust-amended soil was the lowest. An inverse relationship was observed between nematode populations and rates of each manure type and decomposition period. Similar trends of results were observed in the effects of manure type x manure type x decomposition period interactions on the tested parameters. However, 8 t/ha of poultry in manure (PM) with 6 weeks decomposition period (PM x 8t/ha x 6 wk) interaction recorded the most outstanding effect other interactions. Keywords : organic soil amendments, Meloidogyne incognita , okra Nigerian Journal of Horticultural Science Vol. 9 2005: 89-95","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128950660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospects and problems of vegetable production under irrigation in the Fadama areas of Bauchi State, Nigeria","authors":"U. Haruna","doi":"10.4314/NJHS.V9I1.3373","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3373","url":null,"abstract":"A total of 120 vegetable farmers nested within 24 Fadama Users Associations (FUAs) in the State were randomly selected. Three categories of farmers were formed for easy analyses, namely: below 1.0ha, 1-2.99ha and 3-4.99ha, farmers. Primary data were collected using structured questionnaire supplemented with secondary data. Tools for data analysis used are descriptive statistics and Ginni Concentration Ratio (GCR). The result shows that the per capita land availability increases from 0.05ha for below 1.0ha farmers to 0.27ha for 3-4.99ha farmers. There was also a tremendous increase in the yield of vegetables from 1991 to 1999. The vegetable growers also acquired many assets due to farming in the fadama areas. However, the important problems identified to be affecting vegetable production in the study area include inadequate credit, high cost of farm inputs and inadequate marketing outlets, among others. Nigerian Journal of Horticultural Science Vol. 9 2005: 7-11","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123979159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of growth regulators on growth, flowering and rhizome yield of ginger ( Zingiber officinate Rosc)","authors":"M. Obasi, S. Atanu","doi":"10.4314/NJHS.V9I1.3382","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3382","url":null,"abstract":"Field experiments were conducted in 2001 and 2002, to study the effect of foliar application of growth regulators on growth; flowering and rhizome yield of ginger ( Zingiber officinale Rosc .). Treatments consisted of gibberellic acid (GA3) at 0,150 and 300 ppm; ethrel at 0,100 and 200 ppm and cycocel (CCC) at 0,250 ppm and each concentration was applied in 5 sprays at 24 days interval starting from 8 weeks after planting. The experiment was a 3x3x3 factorial laid out in a randomized complete block design with 3 replications. Results showed that GA 3 inhibited flowering and shoot emergence while ethrel had no effect on flowering but enhanced shoot emergence. Leaf area (LA), leaf development rate (LDR), stem elongation rate (SER), vigour index (VI) and rhizome yield were increased with CCC and decreased with GA and ethrel. Application of CCC at 250 ppm significantly improved rhizome yield by 36.4%. Keywords : Ginger, growth regulators, growth indices, rhizome yield Nigerian Journal of Horticultural Science Vol. 9 2005: 69-73","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125075230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of Arbascular mycorrhizal on the reproduction of bell pepper (Capsicum annuum)","authors":"O. Oyetunji, O. Osonubi","doi":"10.4314/NJHS.V9I1.3372","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3372","url":null,"abstract":"Control experiment was conducted in the nursery of Botany and Microbiology Department, University of Ibadan to evaluate the influence of arbuscular-mycorrhizae (AM) fungi on the improvement of reproductive and productive potentials of bell pepper in sub-humid tropics. The experiment was a 2x4 factorial, arranged in complete randomized design with six replications. G. mosseae, G. etunicatum and dual inoculation of the two AM fungi were used to inoculate the pepper plants. Non-mycorrhizal inoculation served as control experiment. Glomus etunicatum significantly improved the biomass production in bell pepper and its fruiting potentials (66 and 100% respectively). G. etunicatum and dual inoculation also reduced the number of the abscised flowers and fruits. The plants inoculated with. G. etunicatum and dual inoculation maintained at least 75% of their fruits to maturity, while those inoculated with G. mosseae and control plants lost 100% of their fruits before maturity. The pepper was found to respond differently to the two Glomus spp. Dual inoculation of the plant with both AM fungi did not improve its fruiting potentials above the single inoculation with G. etunicatum (0.67 and 5.17 fruits respectively). Keywords : abortion, bell pepper, dual inoculation, flowering, fruiting, G. etunicatum, G. mosseae Nigerian Journal of Horticultural Science Vol. 9 2005: 12-16","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121691321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quality and sensory evaluation of processed calyces of six varieties of Roselle ( Hibiscus Sabdariffa L.)","authors":"JM Babajide, JG Bodunde, A. Salami","doi":"10.4314/NJHS.V9I1.3388","DOIUrl":"https://doi.org/10.4314/NJHS.V9I1.3388","url":null,"abstract":"Extracts from mature calyces of six varieties of Roselle ( Hibiscuss sabdariffa L.) grown at the University of Agriculture, Abeokuta, were assessed for quality through proximate and chemical analysis procedures as well as by sensory evaluation. Proximate composition of all six varieties as indicated by percentages of carbohydrate, protein, crude fibre, fat and ash were similar, with carbohydrate and crude fibre as dominant constituents. Colour intensity as a major index in calyzx utility for beverage drink concentration was determined by spectrophotometric assay of extracts, with results indicating significant differences between varieties.Sensory evaluation and chemical analysis further showed a high ranking for the Purple Dark Red variety in terms of colour intensity, sourness to taste, and overall acceptability of the drink. This was followed by varieties Light Red, Bright Red, Dark Red, Ex-Alabata and Green in that order.The implications of the differences between varieties in colour intensity, pH, and titratable acidity in industrial use for beverage drinks were discussed. Nigerian Journal of Horticultural Science Vol. 9 2005: 110-115","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128008380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}