Aims: To evaluate, identify and select superior genotypes with better agronomic traits with respect to insect resistance and yield components for the development of improved cowpea varieties. Study Design: The plants were raised using completely randomized design (CRD). Place and...
Open access
Research Article10.9734/jeai/2020/v42i430508
Although nursery lettuce information is plentiful, the use of exogenous cytokinin (6, benzyl amino purine, BAP) as a plant growth regulator, which would increase vegetable nursery yield has only recent suggested. On the other hand, biomass relationships between plug cell volumes,...
Open access
Research Article10.9734/jeai/2020/v42i430506
This study was aimed at inducing mutation on three cultivars of Capsicum annuum L. to source for new and favourable genetic variations that could be exploited for better agronomic traits. The mutation was induced by exposing the seeds of Shombo, Tatase and Nsukka yellow pepper to...
Open access
Research Article10.9734/jeai/2020/v42i430505
Cowpea was sown into pineapple-pepper intercrop at the establishment of pineapple in 2011 and 2012 to evaluate the effects of its time of sowing into pineapple-pepper intercrop on growth and yield components of pepper. In 2011, cowpeas were sown into pineapple-pepper intercropped...
Open access
Research Article10.9734/jeai/2020/v42i430503
The study of economics of yam production was carried out in Gboyin Local Government Area of Ekiti State, Nigeria. The specific objectives are to: describe the socio-economic characteristics of yam farmers, determine and analyse the profitability of yam production, determine the i...
Open access
Research Article10.9734/jeai/2020/v42i430504
Biochar is widely recognized as an efficient tool for soil fertility and carbon sequestration. The understanding of its physical and chemical properties is strongly related to the type of used material, is crucial to identify the most suitable application of biochar in soil. A se...
Open access
Research Article10.9734/jeai/2020/v42i430498
Sebastiana Renata Vilela Azevedo, Geovana Gomes de Sousa, Maria Beatriz Ferreira, Marcelo Pereira Dutra Júnior, Iara Cristina Araujo Rocha, Jaqueline Rocha de Medeiros, Marília Gabriela Caldas Pinto & Rivaldo Vital dos Santos·Journal of Experimental Agriculture International·2020
Aims: To evaluate whether the initial growth and production of green biomass of the legume species Crotalaria juncea L. and Canavalia ensiformis (L.) DC. are influenced by phosphate fertilizer. Study Design: A completely randomized design was used in a scheme 05 treatments x 02 c...
Open access
Research Article10.9734/jeai/2020/v42i430499
Fernando Luiz da Cruz Balena, Reginaldo Ferreira Santos, Doglas Bassegio, Luciene Kazue Tokura, Jerry Adriani Johann & Luiz Antônio Zanão Júnior·Journal of Experimental Agriculture International·2020
Aims: The objective of this study was to evaluate the effects of nitrogen fertilizer application on the direct and indirect productive components of safflower. Study Design: The treatments were arranged in randomized blocks, with four replicates, and consisted of five doses of ni...
Open access
Research Article10.9734/jeai/2020/v42i430500
Rice (Oryza spp. L., 1753) is the most staple food cereal in Senegal. However, national production is low and cannot cover the country needs. Salinity limits rice production in Senegal River valley which is main rice growing area in Senegal. This study assessed salinity tolerance...
Open access
Research Article10.9734/jeai/2020/v42i430501
Fruit bagging is an important strategy to protect fruit against fruit fly (Tephritidae) infestation and pesticide contamination. In laboratory, we compared the forced infestation of guavas by Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) when wrapping them...
Open access
Research Article10.9734/jeai/2020/v42i430502
Libidibia ferrea (Fabaceae) is a valuable medicinal species in the Amazon, but as it is a protected plant, collection from natural populations is forbidden. Therefore, establishing an efficient system for in vitro regeneration and to improve callogenesis of this species is desira...
Open access
Research Article10.9734/jeai/2020/v42i430495
Three maturity types of maize, Abontem (extra early maturing), Omankwa (early maturing) and Obaatanpa (medium maturing) were evaluated at three different plant densities 66,667 plants ha-1, 100,001 plants ha-1 and 133,334 plants ha-1 to determine the optimum plant density for gr...
Open access
Research Article10.9734/jeai/2020/v42i430496
Luiz Leonardo Ferreira, Neusmar Rodrigues Valentim Júnior, João Carvalho de Morais Neto, Ivan Ricardo Carvalho, Marilaine de Sá Fernandes, Ariana Bertola Carnevale, Núbia Sousa Carrijo dos Santos, Carmen Rosa da Silva Curvêlo & Alexandre Igor de Azevedo Pereira·Journal of Experimental Agriculture International·2020
The increase in productivity in soybean cultivation has been achieved by many Brazilian producers, due to the technological advances related to soil management, mineral nutrition, pest and disease control, genetic improvement, and the use of beneficial microorganisms via inoculat...
Open access
Research Article10.9734/jeai/2020/v42i430497
This study aimed to evaluate the relationship between plot maintenance level and the prevalence of Cocoa swollen shoot disease in Kipiri (Department of Soubré) in Côte d'Ivoire. Indeed, the strong pressure of Swollen shoot disease in this department causes enormous damage in coco...
Open access
Research Article10.9734/jeai/2020/v42i330493
Tomoyuki Fujii, Yoshiyuki Yamagata, Tin Tin Myint, Yasufumi Kunihiro, Yuji Matsue, Thidar Win, Zaw Moe Aung, Win Sander Htay, Hideshi Yasui, Atsushi Yoshimura & Kazuo Ogata·Journal of Experimental Agriculture International·2020
Aims: Since the genetic purity of rice seed significantly affects paddy yield and quality, many rice production countries have been attempting to improve seed quality. This study aimed to demonstrate the effectiveness of breeder seed production using line cultivation to ensure tr...
Open access
Research Article10.9734/jeai/2020/v42i430494