Nigerian Journal of Horticultural Science最新文献

{"title":"Response of Onion(Allium cepa L.) to Nutrient Sources and Weeding Regimes in Sudan Savannah","authors":"A. Lado, S. Rufai, M. Hussaini, A. Manga","doi":"10.4314/NJHS.V13I1.46580","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46580","url":null,"abstract":"Onion is an important vegetable in Nigeria, but its production and quality are often low due to inappropriate agronomic practices like good nutrient sources and proper weed control. A study was carried out for two years to investigate the response of onion ( Allium cepa L.) to nutrient sources and weeding regimes on the bulb quality during 2006/2007 and 2007/2008 seasons at Sabke Dam, Katsina State (12o56’ N;7 o45’E). The experiment consisted of five sources of nutrients(mineral fertilizer, poultry droppings, rumen content, farm yard manure and no fertilizer as control) and four hoe weeding regimes at 3, 6, 9 weeks after transplanting(WAT) and weedy check as control. The treatments were arranged in a randomized complete block design with three replications. Results indicated that poultry droppings significantly produced higher proportion of marketable bulbs, soluble solids and dry matter as well as high cured bulb weight and bulb yield compared to other nutrient sources in both years. The control recorded the least in respect of all quality characters studied. Weeding regimes significantly (P weight in 2007/2008. Good quality marketable bulbs of onion was best obtained from poultry droppings in combination with weeding at 6 WAT","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127672272","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":"Growth Response of Yellow Passion Fruit to Fertilizer Application","authors":"T. Joseph-Adekunle, J. Fagbayide","doi":"10.4314/NJHS.V13I1.46573","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46573","url":null,"abstract":"The response of passion fruit grown on a low nutrient sandy - loam soil was investigated in a field trial. Passion fruit is a tropical – growing vine that is cultivated mainly for its juice but has some other ethnomedicinal uses. In this research work, the yellow form (Passiflora edulis var. flavicarpa) was grown in field under two rates (5 and 10t/ha) Pacesetter organic fertilizer grade B - POF (B). During the one year of experimentation, both agronomic characteristics and yield were evaluated. The fertilization of passion fruit with (POF B) did not enhance the vegetative growth within the period of observation (6 – 11 weeks after transplanting). However higher rate of POF (B) recorded higher values than the 5t/ha application. The effect of POF (B) application on the reproductive development enhanced earlier, higher and consistent flowerbud formation and flower set. The result suggested application of POF (B) above 5t/ha for reproductive phase with subsequent fruit production.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130735243","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":"Growth and yield responses of pawpaw varieties (Carica Papaya l.) intercropped with okra and cucumber","authors":"O. Olubode, I. Aiyelaagbe, J. Bodunde, F. Olasantan","doi":"10.4314/NJHS.V13I1.46564","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46564","url":null,"abstract":"Field experiment was conducted in 2004 and 2005 to investigate the responses of two Carica papaya L varieties (Homestead and Sunrise solo) to three cropping systems: sole pawpaw, pawpaw + okra and pawpaw + cucumber using 10 t/ha organo-mineral fertilizer as basal treatment. The objective of the study was to determine the compatibility of pawpaw with okra and cucumber vegetables. Intercropping significantly decreased pawpaw plant height, stem girth, number of leaves, leaf area and canopy spread in the first year while it sustained LER. The LER, growth and yield in both years indicated that Sunrise solo was more compatible with cucumber and Homestead selection with okra. Significant differences were recorded between Sunrise solo number of fruits/plant, 58.89 and Homestead, 38.44 and the fruit yield/plant, 22.35 t/ha respectively. Okra significantly depressed fruit yield of both varieties more than cucumber with sole, +okra and +cucumber crop mixtures recording 24.32, 20.27 and 22.55 ton/ha under Sunrise solo and 42.66, 24.54 and 39.16 ton/ha under Homestead respectively. The result should show that papaya could be inter-cropped with vegetable at the early vegetative stages to sustain land utilization as well as total productivity.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128593522","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":"Spread of the spiraling white fly Aleurodicus dispersus (Homoptera: Aleyrodidae) and its parasitoids Encarcia species (Hymenoptera: Aphelinidae) on horticultural plants in Northwest and Central Nigeria","authors":"V. Umeh, J. Ker","doi":"10.4314/NJHS.V13I1.46561","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46561","url":null,"abstract":"A survey was conducted in central and northwestern Nigeria to establish the extent of Aleurodicus dispersus Russel and Encarsia spp. spread on horticultural plants, especially citrus. The population dynamics of A. dispersus and the impact of Encarsia spp. were monitored on citrus for a period of two years in an orchard located in central Nigeria. Survey results indicated the spread of whitefly A. dispersus and its parasitoids in parts of central and northwestern Nigeria, notably in states sharing common boundary with the republic of Benin. Population of A. dispersus tended to depend on some factors such as vegetation zone and human activities in the surveyed area. In the monitored orchard, the population of Encarsia sp. nr haitiensis Dozier, the major parasitoid species, fluctuated with that of its host Aleurodicus dispersus especially during pick periods and had impact on the host over time.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132225866","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":"Response of Okra (Abelmoschus esculentus) varieties to NPK fertilizer in the southern Guinea savanna of Nigeria","authors":"G. Kolawole, Ao Olapade, Cb Alade, J. Olaniyi","doi":"10.4314/NJHS.V13I1.46577","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46577","url":null,"abstract":"Pot and field experiments were conducted to determine the response of three okra varieties to four NPK fertilizers. The okra varieties; V35 (in the pot experiment and  Clemson spineless in the field trial), Jokoso, and Sologo formed the main plot treatments and four NPK fertilizer rates: no fertilizer (control), 30 +15 +15, 60 +30 +30, and 60 +30 + 90 in kg NPK ha-1 were the subplot treatments arranged as split plot in RCBD replicated four times. Generally, varieties and fertilizer treatments had significant effects on the fresh fruit yields and chemical composition of okra. For the pot trial, variety V35 produced significantly highest fruit weight; 48 g plant-1, followed by Jokoso 34.5 g plant-1 and Sologo 28.4 g plant-1. Application of 60 +30 + 90 kg NPK ha-1 produced higher fruit weight than the application of 60 +30 + 30 and 30 +15 + 15 kg NPK ha-1 which produced higher fruit weight than the control treatment. Interaction effect between varieties and fertilizer rates was highly significant (P= 0.05). For the field trial, on the average, variety Jokoso produced significantly higher fruit yield; 11.4 t ha-1 than Sologo 4.5 t ha-1 and Clemson Spineless 4.3 t ha-1. Mean fruit yield was significantly (P= 0.05) higher with the application of 60 + 30 + 90 kg NPK ha-1 than the control. Application of 60 +30 + 30 and 30 +15 +15 kg NPK ha-1 had similar mean fruit yield as the control treatment. Jokoso had higher N, K, Ca, and Mg uptakes in fruit than Sologo and Clemson Spineless. From the results, it was evident that the okra varieties exhibited variations in fruit yields’ response to NPK fertilizer. For Clemson Spineless, application of 30 +15+15 kg NPK ha-1 influenced highest fresh fruit yield, Jokoso 60 + 30 + 30 kg NPK ha-1 and for Sologo application of 60 + 30 + 90 kg NPK ha-1 will suffice.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127957858","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":"Critical Period for Weed Removal in Garden Egg (Solanum Incanum)","authors":"O. Adeyemi, M. Olaniyi","doi":"10.4314/NJHS.V13I1.46575","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46575","url":null,"abstract":"Field experiments were conducted at the Teaching and Research Farm, Adeyemi College of Education, Ondo during the 2004 and 2005 cropping seasons to determine the extent of yield loss due to weed infestation and the critical time for weed removal in garden egg (Solanum incanum). The experiment which was arranged in randomized complete block design and replicated three times consisted of two series of weed removal treatments. In the first series, plots were kept weed free of weeds by hand weeding for, 3, 6, 9 and 12 weeks after transplanting, thereafter left weedy till harvest while in the second series weeds were allowed to infest the plots for 3, 6 , 9 and 12 weeks after transplanting, then kept weedy till harvest, control plots were either kept weed free or left weedy till harvest. Uncontrolled weed infestation resulted to an average yield loss of 87.13% in two years . Keeping the crop weed infested beyond the first 6-12 weeks after transplanting was not significantly different from not weeding at all till harvest. On the other hand, keeping the crop weed free by hand weeding for the first 12 weeks after transplanting was similar to keeping it weed free for any length of time beyond this period. The critical period of weed removal was observed to be 3-6 weeks from transplanting.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125951880","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 nitrogen fertiliser on the growth and calyx yield of two cultivars of roselle","authors":"GM Bala, J. Fagbayide","doi":"10.4314/NJHS.V13I1.46578","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46578","url":null,"abstract":"Field experiments were carried out during the 2000 and 2001 rainy seasons on the field of National Horticultural Research Institute at Bagauda (latitude 11o 33’ N and longitude 8o 23’E of the equator). The experiment was aimed at evaluating the response of roselle cultivars to different levels of N in combination with 50 kg P/ha and establishing an optimum N fertilizer requirement by roselle. Five rates of nitrogen (0, 30, 60, 90 and 120 kg N ha-1) were combined with deep red and pure white cultivars of roselle in a randomized complete block design arrangement with three replications. Application of N significantly (p o roselle. Application of 50 kg P/ha as basal dressing significantly (p 0.05) were recorded in the seed yields of roselle cultivars in 2001 season and 60 kg N/ha produced optimum levels of 690.0 kg/ha for deep red and 550.0 kg/ha for pure white cultivars seed yields in Northern Guinea savanna.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115262586","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":"A Survey of Rootstock Usage and their Influence on Major Insects and Diseases of Citrus in Nigeria","authors":"V. Umeh, J. Kolade, A. Olaniyan, C. Amih, A. Taiga","doi":"10.4314/NJHS.V13I1.46570","DOIUrl":"https://doi.org/10.4314/NJHS.V13I1.46570","url":null,"abstract":"In the various agro-ecological zones of Nigeria, most farmers do not use the recommended rootstocks that enable the production of vigorous and pest/disease resistant plants. Consequently there are many reports of citrus stand losses and low fruit yields in pest and disease endemic areas. This necessitated the initiation of the present study with a view to appraise the validity of existing rootstocks and evaluate, where necessary, new ones adapted to the areas lacking appropriate ones. Questionnaires were administered to 84 citrus farmers in selected producing areas of Nigeria and field visits were made to sample for pests and disease incidence in their farms. The questionnaires covered citrus types and varieties cultivated, sources of planting materials and rootstocks used, pests and diseases causing damage. Results indicated that the citrus types cultivated were in the following decreasing order of preference: sweet oranges (100 % of the farms), mandarins (32 %), tangelo (30 %), grape (28 %), lemon, lime and shaddock altogether were cultivated in 20 % of the farms. Seedlings were either obtained locally or from agricultural agents. Some farmers combine budded seedlings with seedlings from seeds to establish their orchards. Often, the rootstocks chosen for seedling production were not based on recommendations. Only 16 % of the farmers used the recommended rootstocks. Major insect pest and disease attacks that directly correlated with stand losses included those of termites, scale insects, aphids, Phytophthora and tristeza. The rootstocks used affected the severity of some pests and diseases when compared.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127495789","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":"Retail Rural: Urban Market Integration of Plantain and Banana in Enugu State","authors":"O. Olatunde","doi":"10.4314/NJHS.V10I1.3416","DOIUrl":"https://doi.org/10.4314/NJHS.V10I1.3416","url":null,"abstract":"The knowledge about price at various markets determine to a large extent the effectiveness of information flow between the markets which further depicts efficiency of such markets for price prediction. This study examined the trend of prices of plantain and banana and their response between rural and urban markets in Enugu State based on a 36-month secondary data from Project Coordinating Unit of Federal Ministry of Agriculture and Rural Development. The methodology used was an improvement in the way regression is used to measure spatial market integration. The method used was a reduced form of an error correction model, which has the potential for providing considerable information about causality in price formation.\u0000\u0000Results indicated that the average price of banana per kilogram in the rural market was N32.93 whereas it was N46.50 in Enugu metropolis. It was also revealed that average per kilogram of plantain were N43.10 and N46.50 in both rural and urban markets respectively. While the rural price may be used to predict the price of banana in urban market and vice versa, it was discovered that only urban markets price of plantain is exogenous. The prices of banana and plantain was found to be significant at 10 %, 5 % and 1 % level after first difference with three lags.\u0000\u0000The implication of this is that the prices move together across markets showing that there is perfect information flow between the rural price and urban price of Banana and plantain in Enugu State.\u0000 Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 99-104","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"56 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":"123334657","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":"Growth Response and Susceptibility of Telparia Occidentalis Hook Lines to the Root-knot Nematode Meloidogyne Incognita","authors":"E. Nwanguma, A. Olufolaji, H. Akintoye","doi":"10.4314/NJHS.V10I1.3409","DOIUrl":"https://doi.org/10.4314/NJHS.V10I1.3409","url":null,"abstract":"The productivity and host suitability of fifteen lines of fluted pumpkin Telfairia occidentalis HOOK f. were evaluated in a root-knot nematode infested field in the early seasons of 2001 and 2002. The root systems of twelve week-old root-knot nematode-infected Celosia argentea L. cv. TLV-13 plants earlier grown on the plot were ploughed into the plot to serve as primary source of inoculum. Pre-planting soil nematode population (Pi) of the experimental plot was assessed from composited 200cm 3 soil. The experiment was laid out in a randomized complete block design with three replications. Growth response of line EN2000-4 was statistically outstanding when compared with the other tested lines. The vine lengths recorded for lines EN2000-4, EN2000-6, EN2000-11 and EN2000-12 were significantly longer than the other tested lines. The lower values however occurred in lines EN2000-1, EN2000-5, EN2000-7 and EN2000-8. Line EN2000-3 recorded the highest soil and root nematode populations, gall index as well as the highest number of egg-mass. Line EN2000-4 showed the highest level of resistance with significantly low nematode populations, gall index and number of egg-mass. Significant negative correlation was respectively observed between the growth characters and measured indices of nematode infection i.e. (nematode populations (soil and root), gall rating as well as number of egg-mass). Significant positive correlation was also observed between number of pods and plant vigour. Leaf fresh weight was significantly correlated with shoot fresh weight and number of pods. Similarly, number of leaf was correlated with shoot fresh weight. Correlation between soil nematode population, root nematode populations, gall rating and egg-mass were highly significant. Fresh shoot weight was negatively correlated with all the measured indices of nematode infection, but they were not significant.. Keywords : Growth, susceptibility, root-knot nematodes, Telfairia occidentalis Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 52-58","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"12 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":"128804020","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}