Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52908#.VKyXzsnQrzE Author(s)   Paula Cerezini 1 , Antonio Eduardo Pípolo 2 , Mariangela Hungria 2 , Marco Antonio Nogueira 2   Affiliation(s) 1 Department of Agronomy, Universidade Estadual de Londrina, Londrina, Brazil . 2 Embrapa Soybean, Londrina, Brazil . ABSTRACT Biological nitrogen fixation (BNF) in soybean is vulnerable to drought; however, there are genotypic variations among soybean cultivars regarding the ability to keep BNF under moderate water restriction. The aim of this study was to evaluate parameters related to gas exchanges and regulation of BNF in soybean genotypes BNF drought-tolerant (R01-581F and R01-416F), or drought-susceptible (CD 215 and BRS 317), submitted to adequate water supply or restriction between 45 and 55 days after emergence. We searched for traits associated with tolerance/susceptibility to drought, which might be us...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52587#.VJujUcCAM4 Author(s)   Isaac R. Fandika 1,2 , Peter D. Kemp 1 , James P. Millner 1 , Dave Horne 1 Affiliation(s) 1 Institute of Natural Resources, Massey University, Palmerston North, New Zealand . 2 Department of Agricultural Research Services, Kasinthula Agricultural Research Station, Chikwawa, Malawi . ABSTRACT Photosynthetic capacity for heritage (Taewa) and modern potato cultivars were compared at different water and nitrogenregimes in the glasshouse and field. The glasshouse was 2*2*4 factorial design with two irrigation: 100% ET and 60% ET; two applied N: 50 kg N ha -1 and 200 kg N ha -1 , two Taewa (Moe Moe, Tuta...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52336#.VJDhUcnQrzE Author(s)   Abdulkadir Mfilinge , Kelvin Mtei , Patrick Ndakidemi * Affiliation(s) Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania . ABSTRACT The study was conducted to investigate the effect of Rhizobium inoculation and supplementation of phosphorus and potassium on growth and total leaf chlorophyll content to the three released bush bean varieties in northern Tanzania. To achieve this aim, the glasshouse experiment was conducted at Nelson Mandela African Institution of Science and Technology while field experiment were carried out at Tanzania Coffee Research Institute, in Kilima...