Science Journal

 

Researcher
 
Volume 2 - Issue 10 (Cumulated No. 16), October 1, 2010, ISSN 1553-9865
Cover Page, Introduction, Contents, Call for Papers, Research 0210
 
Welcome to send your manuscript(s) to: researcher@sciencepub.net 

CONTENTS

 No.

Titles / Authors

page

No.

1

 Effects of Soil Preparation Methods and Spacing on the Growth and Yield of Popcorn on an Alfisol in Southwestern Nigeria

 

Adeleye, E. O and 1Ayeni, L. S.

Department of Agricultural Science Education, Adeyemi College of Education, Ondo, Nigeria.

1leye_sam@yahoo.com

 

ABSTRACT: Performance of popcorn was investigated under manual tillage and no-tillage soil preparation and three spacing patterns (60cm x20cm, 60cm x 30cm and 60cm x 40cm) in a 2 by 3 factorial experiment fitted into randomized complete-block design and replicated three times. Data on growth and yield characters were obtained and subjected to analysis of variance. The results indicated that some form of reduced tillage is indispensable for optimum grain yield of popcorn; manually tilled treatment out yielded no-tillage treatment. Spacing had significant effects on the growth and yield of popcorn. Popcorn yield in the trials was better at a spacing of 60cm by 20cm than other spacing treatments. It is recommended from the result obtained that popcorn should be planted on manually tilled land and spaced at 60cm by 20cm for optimum grain yield.

[Adeleye, E. O and Ayeni, L. S. Effects of Soil Preparation Methods and Spacing on the Growth and Yield of Popcorn on an Alfisol in Southwestern Nigeria. Researcher. 2010;2(10):1-6]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.01

 

Keywords: tillage; spacing pattern; factorial experiment; spacing treatment

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2

 Proximate Analysis Of Pleurotus Tuberregium (Sing) Grown On The Different Substrates

 

Onuoha C.I. and Obi-Adumanya G.A.

 

Department of Plant Science and Biotechnology, Imo State University, Owerri, Nigeria

onuohaci@yahoo.com

 

Abstract: The Sclerotia of Pleurotus tuberregium (Sing) were grown on four different substrates namely: humus soil, mixture of Sawdust and humus soil, sawdust and shreds of the wood of Treculia africana. The quantity and quality of the fruit bodies produced were measured using the following parameters: number of fruit bodies produced, height of fruit bodies, fresh weight, dry weight, diameter of pileus and length of the stipe. Sawdust which served as the control was better growth medium in terms of length of stipe, number of fruit bodies and height of mushroom. The fruit bodies from a mixture of sawdust and humus soil were better in terms of fresh and dry weight while humus soil alone produced fruit bodies with wider pileus diameter. The wood shreds of Treculia africana did not support the growth of the mushroom. The Nutritional composition of the sclerotium and fruit bodies from the different substrates showed that at P 0.05, mushroom produced from the mixture of sawdust and humus soil has a significant difference in its percentage ash content and percentage lipid content. There was also significant difference in both percentage protein content and percentage crude fibre from mushroom produced from sawdust. Another significance was recorded from the sclerotium in it percentage carbohydrate and percentage energy value while mushroom produced from humus soil showed significance in its percentage moisture content.

[Onuoha C.I. and Obi-Adumanya G.A. Proximate Analysis Of Pleurotus Tuberregium (Sing) Grown On The Different Substrates. Researcher. 2010;2(10):7-11]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.02

 

Key words: Nutritional, proximate, Analysis, Pleurotus tuberregium, Substrate

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 Application of some Egyptian medicinal Plants to eliminate Trichodina sp. and Aeromonas hydrophila in tilapia (Oreochromis niloticus)

Omima A.E. Aboud

Fish Diseases Department, Animal health research institute Dokki Giza, Egypt

dr.hussien_osman@yahoo.com

Abstract: Medicinal plants are important elements of traditional medicine in virtually all cultures and product promise a cheaper source for therapeutics, greater accuracy than chemotherapeutic agents and a viable solution for all problems which groupers culture faces today. The control of Trichodinaiasis and Aeromonus hydrophila in ponds of stocked tilapia with any antiprotozoal and antibacterial agent at present is evidently a cost. In addition, possibly leaves toxic residues in tilapia and mortality. Also, affect for a short times. For the previous reasons, the medicinal plants instead. Garlic (Allium sativum) and sheh el-baathran as optional medicinal plants to treat fish Trichodina sp and Aeromonas hydrophila . 350 Tilapia O.niloticus (average weight 100 20 g) derived from a private fish farm in Kafr El Sheikh governorate infested with Trichodina sp, were kept in cement ponds (38 meter) and sex diets were formulated to contain different levels of Allium sativum extract (1, 4 and 8g/kg diet) and sheh el- bathran extract (1, 3, and 4.5g/kg diet) added. The results showed that crude extracts of either garlic or sheh el- baathran at 800 mg/l significantly (P < 0.05) eliminated Trichodina sp and Aeromonas hydrophila infections in tilapia. garlic and sheh el- baathran will be used as an alternatives to chemicals to treat of infected tilapia with Trichodina and Aeromonus hydrophila.

[Omima A.E. Aboud. Application of some Egyptian medicinal Plants to eliminate Trichodina sp. and Aeromonas hydrophila in tilapia (Oreochromis niloticus). Researcher. 2010;2(10):12-16]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.03

Key words: Trichodina sp, Aeromonas hydrophila , tilapia, medicinal plant, garlic, sheh el- baathran

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4

 Drug designing and docking efficacy assessment of halogen substituted aspirin

 

1Debyani Samantray, and 1R.K. Sahu

1Department of Bioinformatics, B.J.B (A) College, Bhubaneswar, Orissa, India

sahurajani.sahu@gmail.com, debyani.samantray@gmail.com

 

Abstract: COX-2 inhibitors are a class of drugs which selectively inhibit cox-2, an enzyme involved in inflammation pathway. Prostaglandins induce inflammation, pain and fever. Aspirin blocks the enzyme cyclooxygenase (COX-1,2) which is involved in the ring closure and addition of O2 to arachidonic acid converting to prostaglandins . The present study was undertaken to analyze the docking efficacy of aspirin with the target molecule (1IGX) and to assess the best ligand for inhibiting COX and to analyze the docking programme by ARGUSLAB. Substituting the –Cl ion in place of –OH group in aspirin showed two hydrogen bonds with phenylalanine and glutamine residues as its docking site where as substituting the –Br ion showed two hydrogen bonds with Histidine and glutamine residues as its docking site. The finding suggests halogen substituted Aspirin to be a better ligand preferably with Bromine. However clinical trials and laboratory investigation will help in marketing the modified drug.

[Debyani Samantray and R.K. Sahu. Durg designing and docking efficacy assessment of halogen substituted aspirin. Researcher. 2010;2(10):17–23] (ISSN: 1097 – 8135).

doi:10.7537/marsrsj021010.04

 

Key words: Cyclooxygenase, Docking, Drug designing, Aspirin, Ligand

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5

 Benefits of Human Resources Programmes to Community Development Officers

 

Onyeozu, a.m

 

Department of Adult and Non Formal Education, University of Port Harcourt

omadesope@yahoo.co.uk

 

Abstract: The study examines benefits of Human Resources Programmes to Community Development Officers in Rivers State, Nigeria. A structured questionnaire was administered to 190 randomly selected Community Development Officers in the study area. Findings revealed Workshop, Seminar, in-service training/on-the-job training, refresher courses/re-training programmes, Orientation courses/induction programmes, Weekend study/short courses, Symposium and Computer literacy as Human resources programmes that community development officers participate in. Also, findings revealed that the following benefits have been derived from HRD programmes: Human resource development (HRD) programmes have helped to improve skills and competence in organizing community development programmes, HRD programmes have provided opportunities to acquire new skills and techniques for organizing community development programmes, HRD programmes provided by Rivers State government has made them better professionals or experts in community development, enhanced computer literacy through computer training provided by your employer. Based on the findings of the study it is recommended that more HRD programmes be provided regularly for community development officers in order to improve their skills and competence. Also, study leave with pay should be encouraged to update the knowledge of those who may have been employed earlier without adequate requisite credentials. It is also suggested that weekend and short courses be encouraged among community development officers.

[Onyeozu, a.m. Benefits of Human Resources Programmes to Community Development Officers. Researcher. 2010;2(10):24-29]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.05

 

Key words: Human Resources Programmes, Community Development Officers, benefits

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 Diversity, Distribution and Ornamental Potential of Rwanda’s Volcanoes National Park Orchids

 

Jean Leonard SEBURANGA1, 2

1. School of Landscape Architecture, Beijing Forestry University, Beijing 100083, P. R. China

2. National University of Rwanda, Butare, Box 117, Republic of Rwanda

seburanga@yahoo.fr

Abstract: Rwanda harbors a great diversity of wild orchids. This work provides an update to the diversity, distribution and ornamental potential of the Volcanoes National Park orchids. A total of 50 orchids species grouped in 23 genera have been identified. In the park, orchids appeared to occur mostly in the area extending from Mount Bisoke to Gahinga. The park proved to be home to a number of orchid species of floriculture merit with their brilliant and delicate blooms such as Satyrium crassicaule, Cynorkis kassneriana, Satyrium sacculatum and Habenaria praestans. Unfortunately, the orchid diversity of the park has been subject to a number of human-originated threats. Through this study, the issue of an integrated effort of preservation which in part can be done by domestication and ex-situ conservation through ornamental horticulture was discussed.

[Jean Leonard SEBURANGA. Diversity, Distribution and Ornamental Potential of Rwanda’s Volcanoes National Park Orchids. Researcher. 2010;2(10):30-34]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.06

 

Keywords: Diversity, Domestication, Flowers, Horticulture, Orchids, Volcanoes, Park, Rwanda

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7

 Phytochemical Analysis and Broad Spectrum Antimicrobial Activity of Laggera pterodonta (DC.) Sch. Bip. (Aerial Part)

 

1*Egharevba, Henry Omoregie; 2Abdullahi, Makailu Sabo; 3Okwute, Simon Koma; 1Okogun, Joseph Ibumeh

1Department of Medicinal Plant Research and Traditional Medicine

National Institute for Pharmaceutical Research &Development (NIPRD), Abuja, Nigeria.

2National Research Institute for Chemical Technology, Zaria, Nigeria.

3Department of Chemistry, University of Abuja, Nigeria

*Corresponding author

E-mail: omoregieegharevba@yahoo.com

 

ABSTRACT: Laggera pterodonta (DC.) Sch. Bip. aerial part was extracted successively with hexane, ethyl acetate and methanol. The extracts were screened in vitro for activity against standard strains microbes and clinical isolates. The zones of inhibition, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum fungicidal concentration (MFC) were determined. The in vitro antimicrobial screening revealed that the extract exhibited varying activity against different microbes with zones of inhibition ranging from 14-32mm, MIC ranging from 1.25 - 5mg/ml, and MBC/MFC of 2.5-10mg/ml. The highest activity was an MIC of 1.25 mg/ml and MBC of 2.5mg/ml. The activities observed could be due to the presence of some of the secondary metabolites like, alkaloids, tannins, sterols, glycosides, saponins, terpenes and flavonoids present in the plant. Isolation work to determine compound(s) responsible for activities is ongoing.

[Egharevba, Henry Omoregie; Abdullahi, Makailu Sabo; Okwute, Simon Koma; Okogun, Joseph Ibumeh. Phytochemical Analysis and Broad Spectrum Antimicrobial Activity of Laggera pterodonta (DC.) Sch. Bip. (Aerial Part). Researcher. 2010;2(10):35-40]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.07

 

Key words: Laggera pterodonta, phytoconstituents, antimicrobial, MIC, MBC, MFC

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8

 Distribution of Molluscans in Narmada River, India.

 

Zahoor Pir*, Imtiyaz Tali**, L. K. Mudgal*, Anis Seddique**

*Department of Zoology, Govt. PG Girls Science College Motitabela Indore M. P India. 452001.

**Department of Zoology, Govt. Holkar Science College Indore M. P India. 452001.

Zahoor7887@yahoo.com

 

Abstract: Molluscan species were collected from specific stations of Narmada River from July 2009 to June 2010. During the present investigation carried out, about eight species of class gastropoda and eight species of class pelecypoda were recorded through out the year. Among the gastropoda group, Vivipara bengalensis was most dominant followed by Bellamya bengalensis, Indoplanorbis, Unio species, Thiara scabra, Pila globosa, Thiara lineata, and Thiara tuberculata. Among pelecypoda the dominant species was Lymnaea acuminate, followed by Lymnea auricularia, Corbicula striatella, Pissidium clarkeanum, Melanoides tuberculates, Musculium indicum, Parreysia favidens, Corbicula striatella and Perreysia caerulea. Vivipara bengalensis and Bellamya bengalensis dominated the Molluscans fauna and are distributed from the shore line to 3 m depth in all types of sediments. They were found dead on the shore in large numbers during summer. Their maximum density was recorded in summer and minimum in post monsoon season.

[Zahoor Pir, Imtiyaz Tali, L. K. Mudgal, Anis Seddique. Distribution of Molluscans in Narmada River, India. Researcher. 2010;2(10):41-46]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.08

 

Key Words: Molluscan Fauna, Narmada River, diversity, sediments, detirivores

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9

 Effects Of Waste Water Use On Vegetable Crop Production In Imo State, Nigeria

 

 

Emenyonu, Christopher Akujuobi

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. cemenyonu@yahoo.com, +2348028347174.

Odii; Marshal .A.

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. macaodii@yahoo.com, +2348037094296.

Ohajianya Donatus .O.

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. dohajianya@yahoo.com, +2348035438019.

Henri-Ukoha Ada

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. haukoha@yahoo.com, +2348036682823.

Onyemauwa Sebastian .C.

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. csonyemauwa@yahoo.com, +2348069284242.

Ben-Chendo, Glory .N.

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. gnbenchendo@yahoo.co.uk, +2348035841847.

Munonye, Oleander. U.

Department of Agricultural Economics, Federal University of Technology Owerri,

P.M.B. 1526 Owerri Imo State. umunonye@yahoo.com.

 

Abstract: This study is based on a survey of 36 randomly selected farmers in the three agricultural zones of the state with high concentration of vegetable farming using waste water. Information obtained from the farmers was analyzed using basic statistics and t-values evaluated using the ordinary least squares multiple regression technique. A profit measure was also used to evaluate the profit realized from waste water use and non-waste water use, by applying with and without principle. Results showed that waste water use has a negative effect on vegetable crop production as can be seen from the signs of the parameter estimate representing waste water. It was also observed that people within the age bracket of 46 - 55 years engage most in vegetable farming, and they do this because of the less tedious nature of the job. Some of the vegetable farmers use waste water in addition to fresh water, while others do so in order to take advantage of the nutrients it contains. The study further showed that increased waste water use reduces the farmers output and hence revenue. Given the degree of adverse effects of waste water use in the state, it is therefore imperative that prompt action be taken to curb these effect as well as definite actions towards effective waste water management.

[Emenyonu, Christopher Akujuobi, Odii; Marshal .A., Ohajianya Donatus .O., Henri-Ukoha Ada, Onyemauwa Sebastian .C., Ben-Chendo, Glory .N., Munonye, Oleander. U. Effects Of Waste Water Use On Vegetable Crop Production In Imo State, Nigeria. Researcher. 2010;2(10):47-56]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.09

 

Keywords: Effects, Waste Water Use, Vegetable Production

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10

 Biodiversity And Abundance Of Benthic Macroinvertebrates Commiunity Of Kishanpura Lake, Indore (M.P.) India

 

Shailendra Sharma1, Vibha Joshi2, Sushama Kurde3, M.S.Singhvi4

*Department of Zoology, Shri Umiya Girls College, Mandleshwar-451 221(M.P.) India.

**Department of Zoology, PMB Gujarati Science Indore-452 001 (M.P.) India.

 **Department of Zoology, Holkar Science Indore-452 003 (M.P.) India.

shailendra.b.sharma@gmail.com

 

Abstract- Aquatic macro-invertebrates play significant role in responding to a variety of environmental conditions of rivers and streams and therefore may be used as bio-indicators for water quality assessment. In the past, biological communities like plankton, periphyton, microphytobenthos, macrozoobenthos, aquatic macrophytes, fishes etc. have been used for the assessment of water quality of rivers ,lakes and streams, but now the use of benthic macro-invertebrates as bio-indicators is gaining importance as these can be easily caught and seen with naked eyes and the method is less costlier and less time consuming compared to other methods given above. Oligochaeta Seven species like Tubifex tubifex, Chaetogaster sp., Nais simplex, Aeolosoma bengalensis, Dero limosa, Branchiura soverbyi, Stylaria fossularis were indentified during the present study HIRUDINEA Three species, Helobdella sp. Glossiphonia sp. and HemicIepsis marginata of the family Glossiphonidae were identified during the present study period. GASTROPODA Altogether individuals of the three families Planorbidae. Lymnaidae and Viviparidae were recorded among the class Gastropoda during the study period. In the family Planorbidae only one species Planorbis was identified during the study period. Among family Lymnaidae three species were identified. They were Limnaea auricularia , L. acumainata and other Limnaea sp. Limnaea auricularia and L. acumainata family Viviparidae only three species namely Vivipara bengalenis, V. oxytropsis and Bellamya sp. were identified during the investigation period. BIVALVIA (PELECYPODA) Only two species of Lamellidens was identified in the family unionidae during the study period. Insecta Chironomus phumosus, Strictochironomussp, Baetissp., Corixasp.,Berosus sp., Hydaticus sp. Crustacea Apus (tadpole shrimp), Daphnia (water flea) was identified during the study period. The present studies deals with the population density and species diversity of aquatic macro invertebrate fauna have been discussed.

[Shailendra Sharma, Vibha Joshi, Sushama Kurde, M.S.Singhvi. Biodiversity And Abundance Of Benthic Macroinvertebrates Commiunity Of Kishanpura Lake, Indore (M.P.) India. Researcher. 2010;2(10):57-67]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.10

 

Key Words: Seasonal diversity, macro invertebrates, bio-assessment’ Population density, Littoral region, Kishanpura Lake

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 Yields, Cost of Production and Economic Return to Management of Maize/Cassava Intercrop as Influenced by Different Tillage Practices.

 

Nyaudoh U. NDAEYO

Department of Crop Science, University of Uyo, Uyo, Nigeria

e-mail: dr_nundaeyo@yahoo.com

 

Abstract: A study was conducted in 1995/96 to 1997/98 cropping seasons at Epemakinde, a rainforest area of southwestern Nigeria to assess the effects of different tillage practices viz: conventional (CT), minimum (MT), traditional (TT) and zero (ZT) on the yields, cost of production and economic returns to management of maize (Zea mays) /cassava (Manihot esculenta) intercrop. A randomized complete block design with three replicates was used. Results showed that grain yield only differed significantly in 1998 with CT and ZT being lower than both MT and TT by 2 and 25%, respectively. Average of maize across the three years indicated that TT (3.15 t/ha) significantly out yielded both CT and ZT by 16%. Cassava fresh root yield differed significantly in 1998 with TT (44.72 t/ha) producing higher than other tillage practices by 2-24% while MT (40.60 t/ha) yielded higher than others by 3-19% in 1998 cropping season. The CT and MT treatments had the highest cost of production and economic returns and superseded ZT by 21% and 8%, respectively. This study has demonstrated the necessity of some level of tillage with MT treatment being the most desirable.

[Nyaudoh U. NDAEYO. Yields, Cost of Production and Economic Return to Management of Maize/Cassava Intercrop as Influenced by Different Tillage Practices. Researcher. 2010;2(10):68-74]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.11

 

Keywords: Zea mays, Manihot esculenta, tillage, farm income

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 Some Biological Aspects of the Filefish Setphanolepis diaspros (Family: Monacanthidae) from the Gulf of Suez, Egypt.

Azza A. El-Ganainy

National Institute of Oceanography and Fisheries, B.O. Box 182, Suez, Egypt.

E-mail: azzaelgan@yahoo.com

 Abstract: The reproductive characteristics and stomach contents of the filefish Stephanolepis diaspros in the Gulf of Suez were investigated through samples collected from 2004 to 2007. The overall sex ratio of males to females was estimated as1.00: 0.18, where females are represented in small sizes (8.0- 16.0 cm) while males largely outnumber females up to the length interval 16.0- 26.0 cm. The monthly average values of gonad weight percentages and monthly different maturity stages showed that the species spawns during summer season with intensive spawning in May. The length at first sexual maturity was estimated at 9.5 cm for males and 8.5 cm for females. The diet of file fish consisted of a wide variety of items, dominated by Crustaceans and mollusks. Algae, Echinoderms and fish remains were also demonstrated in the stomachs of the file fish. Sponges, Hydra sp., foraminifera and Pryozoa were also preyed by the file fish. The maximum feeding intensity was attained in spring season, while the minimum feeding intensity was observed during summer (June and September).

[Azza A. El-Ganainy. Some Biological Aspects of the Filefish Setphanolepis diaspros (Family: Monacanthidae) from the Gulf of Suez, Egypt. Researcher. 2010;2(10):75-78]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.12

Key words: Filefish, Stephanolepis diaspros, Reproduction, Food and feeding, Gulf of Suez, Egypt

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 Genetic Diversity In Yield And Quality Attributes Of Ten Genotypes Of Rice In Nigeria.

 

Anyanwu, C. P. And I. U. Obi 1

Department of Crop Science and Technology, Federal University of Technology, Owerri.

1 Department of Crop Science , University of Nigeria , Nsukka

chipanyanwu_futo@yahoo.com

 

Abstract: Ten genotypes of rice (Oryza sativa L.) including some lines collected from the farmers fields in Abia, Ebonyi and Imo States of South Eastern, Nigeria, were used for the experiment. The seeds were grown in the early seasons of 2006 and 2007 at the Teaching and Research farms of the Federal University of Technology, Owerri and used for assessing their yield and Physicochemical characteristics. Moderate to high variation was observed for all the characters studied. Number of tillers per stand varied most having a coefficient of variation of 20% followed by percentage fibre (18. 7%) indicating a scope for selection of these traits among the lines evaluated. Conversely, percentage amylose (1.9%), grain length (4. 4%) and percentage protein (5 .4 %), had lower values for coefficient of variation suggesting that the variation were more genetically similar in these attributes. Heritability in the broad sense estimates revealed that grain length had the highest heritability (93. 2%) followed by number of days to anthesis (90 .7%) while number of spikelets/ panicle (32.3%) and number of tillers / stand (49.03%) were the least. The physical characteristics of the grains divided the lines investigated into long slender, long bold and medium bold sizes and shapes. Among the lines however, Mass and Wita 4 combined high numbers of tillers/ stand, high percentage fertile spikelets and high number of seeds per secondary branch of panicle and long slender grains. On the other hand, Sipi 692033 and NERICA 1 had higher percentage protein and amylose with long grains.

[Anyanwu, C. P. And I. U. Obi. Genetic Diversity In Yield And Quality Attributes Of Ten Genotypes Of Rice In Nigeria. Researcher. 2010;2(10):79-84]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.13

 

KEYWORDS: Attributes, Physicochemical traits, Variation, Heritability

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Effects of Seasonal variability on the Performance of Long Cayenne Pepper Collected from Southwestern Nigeria.

 

Idowu- Agida, O.O1, Adetimirin, V.O2, Nwanguma, E.I3 and Makinde, A.A.4

 

1,3&4National Horticultural Research Institute, Ibadan, Nigeria

2Department of Agronomy, University of Ibadan, Nigeria

 Corresponding author. E-mail: hakmak4u@yahoo.com. Tel.:+234-803-8570-500, +234-702-5935-636.

 

Abstract: Six weeks old long cayenne pepper seedlings were transplanted to the field on 6th of June,2008 for the early season and 11th of September, 2008 for the late season on beds measuring 3.6m by 2.4m. Experimental design was randomized complete block design with three replications. The result showed that the mean maximum and minimum temperature of 35oC and 25 oC respectively during late season enhanced the attainment of days to 50% flowering and 50% fruiting by 35days earlier in all the accessions than the early season with 34 oC and 24 oC. Also the rainfall for the period between 50% flowering and 50% fruiting was 464.9mm in the early season whereas the corresponding value for late season was 97.2mm, hence this could be said to have been responsible for over 50% reduction in the fruit weight per plant across all the 31 accessions during early season due to flower abortion, stem lodging and high fruits loses.

[Idowu- Agida, O.O, Adetimirin, V.O, Nwanguma, E.I and Makinde, A.A. Effects of Seasonal variability on the Performance of Long Cayenne Pepper Collected from Southwestern Nigeria. Researcher. 2010;2(10):85-92]. (ISSN: 1553-9865).

doi:10.7537/marsrsj021010.14

 

Key words: Long cayenne pepper, Agroclimatogical indices,flowering,accessions

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