June 2021
Importance and diversity of Mycorrhizae under plantain cultivation in the slash-and-burn and non-burn cropping systems in the forest region of Kisangani, Tshopo Province, D.R. Congo
Mycorrhization is known to have beneficial effects on growth vigour and protection against certain pathogens in several plant species including plantains, which has so far been little studied in the Kisangani forest region. This study aimed to determine the importance and biodiversity of mycorrhizae under plantains in the slash-and-burn and non-burn cropping systems. This research was carried out in two experimental...
June 2021
Mealybugs on fruit crops in the Sao Franciso Valley, Brazil
Mealybugs are agricultural pests occurring all over the world. The Sao Francisco Valley is one of the most productive regions regarding the cultivation of fruit crops in Brazil, demanding a proper phytosanitary management that can be obtained through the biological control of pests. Fortnight samples of mealybugs associated with roots, trunk, leaves and fruits of grapevines, pear, apple, persimmon, guava and Barbados...
June 2021
Amount of nitrogen and phosphorus fertilizer required to optimize growth and yield of rice
Soil nutrient management is an important factor in plant growth for increased crop production and productivity in Sub-Saharan Africa whose food demand is over the threshold. Rice production in Uganda is still very low with current yield less than 2.5 ton ha-1. The impressive production increase is mainly on to farmer area expansion. A fertilizer trial was established to determine a New Rice for Africa (NERICA) 4 variety...
June 2021
Phenotypic evaluation of cassava genotypes (Manihot esculenta) under moisture stress
Food security continues to be affected by global climatic changes which include increase of drought stress. A sustainable solution is to develop crop cultivars that are tolerant to climatic stresses. Among all crops cassava has a high potential to mitigate hunger. A field experiment was conducted to evaluate the performance of 79 cassava (Manihot esculenta) varieties under drought stress. The parameters evaluated were...
June 2021
Cultural heritage as a pathway for sustaining natural resources in the Maasai’s Pastoral Social-Ecological System in Kajiado County, Kenya
The Maasai pastoralists inhabiting Kajiado County are known for rearing large herds of animals. Livestock has enabled them to attain food and nutritional security. However, natural resources are dwindling fast under the swift development context. The private holding of land is becoming more prevalent in an area formally known for its communal land setup. The emerging land tenure systems have disregarded the traditional...
June 2021
Substrate and genotype effects on kola (Cola nitida [Vent.] Schott and Endlicher.) tree cuttings growth in nursery
The kola tree (Cola nitida) belongs to family Malvaceae grown mainly for its seed. It is highly prized for its socio-cultural and industrial uses. However, there is a significant high variability due to a high proportion of allogamy in the reproduction mode. The influence of substrate and genotype on kola tree cuttings has been studied in order to propagate it vegetatively. Six growing substrates: 100% Black soil, 50%...
June 2021
Nitrate concentration and nitrate/ammonium ratio on lettuce grown in hydroponics in Southern Amazon
Lettuce has a predisposition to nitrate accumulation and has led many researchers to develop research to reduce this accumulation. The objective of this study was to evaluate the effect of nitrate concentration (NO3-) and nitrate/ammonium ratio (NO3-:NH4+) on growth, production and accumulation of these nitrogen compounds in lettuce grown in a hydroponic system in southern Amazon. There were performed two experiments...
June 2021
Phytochemical composition of Capsicum frutescens and its effect on body weight and carcass yield of Cobb500 broilers
This study aimed to establish phytochemical composition and determining the effect of Capsicum frutescens powder on body weight and carcass yield of Cobb500 broilers. Four hundred and fifty broilers at 35 days were randomly assigned to treatments defined by three dietary inclusion levels (1.1, 2.2, 4.4%) of C. frutescens powder for each of the three durations (13 days, 19 days, 24 days) prior to 59 days of age. A...
June 2021
Preliminary evaluation of genetic inheritance of root traits of common bean (Phaseolus vulgaris L.) for tolerance to low soil phosphorus
Common beans are an important nutritious food crop to many people in developing countries. Inadequate soil-P is one of the major constraints to high bean seed yield productivity. Information about genetic effects that control inheritance of root traits in common bean grown under low soil-P conditions is scarce, and that is a challenge for genetic enhancement. This study was therefore implemented to determine inheritance...
June 2021
Nodulation and protein content of selected chickpea varieties as impacted by spacing and n-fertiliser rates in Eastern Kenya
Chickpea is a major legume grown in Kenya. The agronomic performance, nodulation ability and grain crude protein are not fully exploited. Field experiments were conducted at Embu, Kenya to determine the effect of plant spacing and N-fertilizer rates on nodulation and protein content of selected chickpea varieties. A split-split plot design was used and replicated three times. Treatments consisted of main factor, variety...
June 2021
Long-term spatial-temporal temperature characteristics of a pastoral ecosystem in Kajiado County, Kenya
Kajiado County is mainly Arid and Semi-Arid Lands (ASALs) and as such it is faced with harsh climatic conditions. The county is dominantly inhabited by the Maasai pastoralists who depend on climate-sensitive natural resources for their provisions and production needs. As such, they are faced with low productivity. Therefore, the study investigated historical temperature characteristics combined with surveys on the...
June 2021
Phenotypic characterization of the Guaymi breed in conservation centers of Panama
Not all regions of the world have access to advanced means of analysis, such as molecular or quantitative genetics. In the absence of these or other means of selection, phenotypic analyses are used for breed differentiation as well as to evaluate productive aptitude. The objective of this work is to characterize morphometric variables and zoometric indices, as well as the morphological and phaneroptic characterization,...
June 2021
Antifungal effect of plants extracts against Pestalotiopsis microspora responsible for post-harvest rot disease of pineapple (Ananas comosus (L.) Merr) fruit in Cameroon
Rotten fruits are known to cause major losses in post-harvest conservation. One of the causal pathogen of pineapple rot was investigated and the antifungal effects of selected plants extracts were evaluated in vitro against fungal pathogen; Pestalotiopsis microspora. The fruits samples were randomly collected from farms after harvest. The samples were collected in Awae; the experiment was conducted at Agricultural...
June 2021
Response of hot pepper (Capsicum annuum L.) to major fungal diseases under field and greenhouse conditions in Horo Guduru Wollega, Oromia, Ethiopia.
Hot pepper (Capsicum annuum L.) is a national spice and vegetable of Ethiopia, produced as a cash crop. Biotic and abiotic stresses are very common throughout the pepper producing area of the country. Diseases are the major constraint to hot pepper production. An experimental trial was conducted at Harato Research site, Wollega University, Ethiopia to evaluate the reaction of five hot pepper varieties (Mareko...
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