American Journal of Agricultural Research


INCIDENCE AND SEVERITY OF ANTHRACNOSE (Colletotrichum lindemuthianum) ON SELECTED COMMON BEAN (Phaseolus vulgaris L.) GENOTYPES

Research Article of American Journal of Agricultural Research INCIDENCE AND SEVERITY OF ANTHRACNOSE (Colletotrichum lindemuthianum) ON SELECTED COMMON BEAN (Phaseolus vulgaris L.) GENOTYPES Gaudencia J. Kiptoo1*, Miriam G. Kinyua2, Oliver K. Kiplagat2, Lexa G. Matasyoh3 1Egerton University, Biological Science Department P.O. Box 536-20115, Njoro-Kenya. 2University of Eldoret, Biotechnology Department P.O. Box 1125-30100, Eldoret-Kenya. 3University of Eldoret, Biological Science Department P.O. Box 1125-30100, Eldoret-Kenya Common bean (Phaseolus vulgaris L.), is among the most important legume crop for protein source in peoples’ diet globally and including Kenya. Anthracnose (Colletotrichum lindemuthianum) is a common disease of legumes that causes yield loss of upto 90-100%. Potential  production of common beans in Kenya is expected to be above 2000 kg ha-1 but due to challenges of pests and diseases among them anthracnose, it remains below potential yields. The aim of the recent study was to investigate selected common bean genotypes for anthracnose resistance in Kenya. The study was done in three varied agro-ecological zones; Busia, Bungoma and University of Eldoret. Fifteen genotypes were evaluated on field experiment to ascertain anthracnose incidence and severity. Four bean genotypes were used as experimental controls; two resistant and two susceptible controls. Data was collected on incidences and severity and subjected to Analysis of variance in SAS version 9.1. Mean values were separated using Tukeys’ Studentized Range Test. The results revealed tolerant and resistant genotypes with lower incidences and severity than those of resistant controls while susceptible genotypes recorded higher incidences and severity than those of the susceptible controls. Tolerant genotypes were; Ciankui, Tasha, and KK8 while the resistant genotypes were; Miezi mbili, KK15 and Chelalang. Site variation was significant at (P≤0.05) with Busia 82%, Bungoma 76% and University of 53%. KK15, Tasha and Chelalang were tolerant in all sites, and this could be attributed to their genetic resistance. The ...

Occurrence and Antimicrobial Susceptibility of Salmonella sp. and Escherichia coli in Minimally-processed and Frozen Fruit Pulps

Research Article of American Journal of Agricultural Research Occurrence and Antimicrobial Susceptibility of Salmonella sp. and Escherichia coli in Minimally-processed and Frozen Fruit Pulps SANTINI, T.P1; MARQUES, J.O2; NUÑES, K.V.M3; KABUKI, D.Y4 1Departament of Food Science, UNICAMP-SP; 2Institute of Pharmaceutical Science, UNICAMP-SP; 3Departament of Food Science, UNICAMP-SP; 4Departament of Food Science, UNICAMP-SP Fruits and fruit pulps are widely consumed worldwide due to their nutrients, flavors and varieties. However, these products become contaminated with pathogens during harvest or production, which are risks to consumers. This study analyzed the microbiological quality of frozen fruit pulps and minimally processed fruits sold in supermarkets and the presence Salmonella sp. and pathogenic Escherichia coli. Almost all frozen fruit pulps samples were adequate to consume, only one samples of unpasteurized mango pulp was positive for E. coli carrier  of est1b gene that codify thermostable toxin of Enterotoxigenic E. coli. Minimally processed fruits presented high yeast and mold counts in 36.25% (29/80) of the samples and 27.6% (22/80) had thermotolerant coliforms. In addition, one sample of grated coconut had E. coli and one sample of melon honeydew had Salmonella sp. E. coli O157:H7 was absent in all samples of minimally processed fruits. E. coli showed greater resistance to ampicillin and chloramphenicol. Multidrug resistance was observed in 14.3% (2/14) of E. coli isolates. Only one strain of Salmonella sp. was resistant to antibiotic sulfamethoxazole/trimethoprim. Therefore, the enforcement of pasteurization in the fruit pulp processing, as well hygienic-sanitary control in lead up of minimally-processed fruits and temperature control in storage are recommended to minimize the risk of foodborne disease. Keywords: mango, melon, multidrug resistance, pathogenic E. coli ...

Agricultural Land Use Pattern and Socioeconomic Study of Taluk Dharmadas Mouza

Research Article of American Journal of Agricultural Research Agricultural Land Use Pattern and Socioeconomic Study of Taluk Dharmadas Mouza, Rangpur, Bangladesh. Md. Naimur Rahman Begum Rokeya University The Taluk Dharmadas Mouza is situated at the sadar upozilla of the Rangpur city under 32 number ward. This study was conducted for acquiring knowledge and analyzing of land pattern on agricultural phenomenon as well as the socioeconomic condition. For this mechanism was the socioeconomic questionnaire method, fractional code method, GIS and RS techniques were also used. GIS and RS are used for mapping land pattern, land surface temperature calculation where a fractional code method was used for obtaining and analyzing specific Jurisdiction List (JL) Number and plot number based cultural and physical characteristics. Furthermore the questionnaire helped for studying the overall land use, environmental, socioeconomic and agricultural description. The study found that the study area contains 40 percent agricultural land where 91 percent soil is sandy, against it 30 percent of proper irrigation prevails and temperature pattern is suitable, but the flooding 28 percent and water logging 24 percent is the excessive for agricultural activities instead of this most profitable crop found in only paddy production of 36 percent. In addition, three or multiple crop cultivation gets 45.15 percent agricultural land which revels the increased amount of production. The individual unwillingness for cultivation is 88 percent by considering several aspects including economic condition which is a threat to food safety. In addition urbanization is rapidly forming, but settlement pattern is not developed as their socioeconomic condition where the old age pattern for male is excessive instead of youth female age group of 13 percent which provides the efficiency of the female is larger than male portion. Economic condition is in the lower middle and upper middle level as it is compared with ...

Space breeding in modern agriculture

Review Article of American Journal of Agricultural Research Space breeding in modern agriculture Liling Jiang, Baochang Zhang, Weipeng Chen, Tianyuan Qiu,Linlin Wang, Shandong Yang* School of Agricultural Engineer and Food Science, Shandong University of Technology, Zibo 255000, China Space breeding, also known as aviation breeding or space technology breeding, is a new type of breeding technology developed in recent decades, which combines space technology, modern agricultural technology and biotechnology. Compared with traditional breeding technology, it can greatly improve the quality of agricultural products in a short period of time, create many high-quality provenances, well solve the problem of food shortage, and bring endless benefits to the world. Therefore, space breeding technology will play an important role in the rapid development of modern agriculture. In this paper, the principles and characteristics of space breeding, development status and future prospects at home and abroad are introduced. Keywords: Space breeding; mutagenic; Modern agriculture ...

Combining Ability and Gene Action of Tomato Hybrids (Lucopersicum Esculantum L.) Genotypes in Azerbaijan

Research Article of American Journal of Agricultural Research Combining Ability and Gene Action of Tomato Hybrids (Lucopersicum Esculantum L.) Genotypes in Azerbaijan Gulare Huseynzade, Zeynal Akperov, Sabir Hasanov Genetic Recources İnstitute, Azerbaijan National Academy of Sciences, 155 Azadlig Avenue, Baku Az1106, Azerbaijan This work identifies the combining ability of 10 tomato (Lucopersicon esculantum) parents and 45 F1 hybrids obtained from 10 × 10 half diallel. The work aims to identify the parents with the best general combining ability (gca) and crosses with high specific combining ability (sca) for yield, quality and nature of gene action involved. The study was conducted within 2014 and 2017 at Absheron condition in Azerbaijan using randomized complete block design (RCBD) with three replications. The combined analysis of variance showed that variance for gca and sca was highly significant for all the traits studied. This indicates that both additive and non-additive gene actions were operating in the inheritance of these traits. Parental level of gca revealed that introduced genotype (Masalli variety-form) had highest (5843.87) effect followed by Belarusian variety ‘Qarant’ (1930.97) for fresh pod yield and other related traits. The highest sca for hybrids was exhibited by Masalli variety-form x Ilkin, ‘Leyla x Masalli variety-form, ‘Shahin’ x Volqoqrad and Zorka x Shakar for yield and quality traits. This indicates the existence of immense potential for population improvement and heterosis breeding for enhancing productivity and qualities. The ratios of gca mean square to sca mean square were higher than unity for traits, indicating that additive gene action plays a predominant role in the inheritance of most of the traits. Keywords: combining ability, gene action, hybrid, traits, parents, quality, yield ...

Dr. Ajai Kumar Srivastav
Emeritus Professor, Department of Zoology, D.D.U. Gorakhpur University

Dr. Osman Tiryaki
Çanakkale Onsekiz Mart University, Faculty of Agriculture, Plant Protection Department, Terzioglu Campus, 17020, ÇANAKKALE, TURKEY

Prof.Dr. Süleyman Taban
Professor, Department of Soil Science and Plant Nutrition, Ankara University, Ankara-TURKEY

Dr. Nikolay Dimitrov Panayotov
Professor & Head, Department of Horticulture, Agricultural University

Dr.  Samuel Ohikhena Agele 
Lecture/Researcher, Department of Crop, Soil & Pest Management, Federal University of Technology

Dr. Ghousia Begum
Principal Scientist, Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology

Dr. Sirisha Adamala
Assistant Professor, Department of Applied Engineering, Vignan's University

Dr. Mala Trivedi
Professor, Amity Institute of Biotechnology, AUUP, Lucknow-226028

Dr Ambreesh Singh Yadav
Scientific Officer, U.P. Council of Agricultural Research, Lucknow, U.P., India

Dr. Abd El-Aleem Saad Soliman Desoky
Professor, Plant Protection Department, Faculty of Agriculture, Sohag University

Dr. Chang-Hong Liu
Professor, School of life sciences, Nanjing University, P.R. China

Dr. İrfan Özberk
Professor & Head, Dept. of Field Crops, Fac. of Agri, The Univ. of Harran, Sanliurfa, Turkey

Dr. Papadakis Ioannis
Assistant Professor, Laboratory of Pomology, Agricultural University of Athens

Dr. KAPTAIN KISHOR BAJPAYEE
Associate Professor & Head, Center for Research in Ethno & Medico Botany Dr. R.M.L. PG. College ( C.S.J.M. UNIVERSITY)

Dr. Ayman EL Sabagh
Assistant professor, agronomy department, faculty of agriculture, kafresheikh university, Egypt; Visiting scientist at Field Crops Department ,Faculty of Agriculture , Cukurova University, Turkey

Dr. Alaa Jabbar Abd Al-Manhel
Assistant Professor, Agriculture college /Basra University

Dr. Bibhuti Bhusan Sahoo
Scientist, Regional Research & Technology Transfer Station, (OUAT), Semiliguda

Dr. Sedat Karadavut
Assistant Professor, Agricultural Structers and İrrigation (Biosystems Engineering), Trakya University/TURKEY

Dr. Abhishek Naik
Area Manager, Technology development department

Dr. Ionel BONDOC
Associate Professor, University of Agricultural Sciences and Veterinary Medicine Iasi, Faculty of Veterinary Medicine Iasi (ROMANIA), Department of Public Health

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American Journal of Agricultural Research

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