Open Access Original Research Article

Melliferous Plants Threatened to Disappearance in Togo

M. Koudégnan Comlan, Akpavi Sêmihinva, Edorh Thérèse

Journal of Agriculture and Ecology Research International, Page 49-58
DOI: 10.9734/JAERI/2015/11818

Pollinic analysis and apicol surveys conducted between 2009 and 2014 on honey sampled directly in beekeeping areas or outlets have permitted discovery of 330 melliferous species Including 45 species (13.64 %) which are threatened to extinction in Togo. Compared with Togolese flora, these plants threatened represent 1.29 %.
Belong to 43 genres, these species threatened which are food plants can be grouped into 24 families and most at risk are the Malvaceae, Anacardiaceae, Fabaceae and Annonaceae.
These plants can be divided into two classes: wild and crops plants. The routinely used parts of these plants are the fruits and leaves. In general, nectar plants are the most represented.

Open Access Original Research Article

An Assessment on Effect of Adoption of Small Scale Irrigation Technologies by Fadama Users in Agricultural Zone III of Niger State, Nigeria

Mohammed Usman

Journal of Agriculture and Ecology Research International, Page 59-66
DOI: 10.9734/JAERI/2015/15282

The Study examined an assessment on effect of adoption of small scale irrigation technologies by fadama users in agricultural zone III of Niger state, Nigeria. The broad objective of the study was to examine an assessment on effect of adoption of small scale irrigation technologies by fadama users in agricultural zone III of Niger state, Nigeria. The specific objectives were to examine the effects of small scale irrigation technologies on the crop output yield, to identify factors influencing the adoption of small-scale irrigation technology by the farmers; to identify constraints of small–scale irrigation technologies in the study area; Data were obtained by the use of structured questionnaire that were administered to 180 respondents. Descriptive statistics and multiple regression were statistical tools used to analyze the data. Findings show that 74.4% of the respondents report a significant increase in the quantity of crop and 23.9% report an average increase in the quantity of crops this implies that with the adoption of small scale irrigation technology the quantity of crop production increase thereby making them to have more products to take to the market and more to eat or feed on. The study found out that labour and cost of maintenance are constraint to adoption of small scale irrigation technology. It’s therefore recommended that small scale irrigation technology with little cost of maintenance and low labour requirement should be introduce to the farmers.

Open Access Original Research Article

Survival and Growth Response of Seedlings to Seed Size Variation of Albizia lebbeck (L.) Benth

Edward Missanjo, Chikumbutso Maya

Journal of Agriculture and Ecology Research International, Page 67-74
DOI: 10.9734/JAERI/2015/15995

Aims: To investigate the influence of seed size variation on seedling growth height, root collar diameter, root length, seedling length, root shoot ratio, number of leafs, leaf area, dry weight and survival of Albizia lebbeck in the nursery.
Place and Duration of Study: The experiment was conducted in the nursery at Malawi College of Forestry and Wildlife between March and September 2014.
Methodology: Seeds were categorized into three groups in regard to their length and weight: large (0.98±0.05 cm) and (0.22±0.02 g); medium (0.64±0.04 cm) and (0.13±0.02 g); and small (0.32±0.05 cm) and (0.09±0.01 g).The treatments were completely randomized into four replications. A total of 600 seeds were used with each treatment having 50 seeds. To improve germination, seeds were mechanically nicked with secateurs.
Results: Seedling height, root collar diameter, root length, seedling length, root shoot ratio, number of leafs, leaf area, dry weight and percentage survival were significantly (P<.001) affected by seed size variation. Large seeds produced higher seedling height (58.4 cm), root collar diameter (5.97 mm), root length (29.7 cm), seedling length (88.1 cm), root shoot ratio (0.51), number of leafs (8.21), leaf area (405.0 cm2 plant-), dry weight (11.3 g plant-) and percentage survival (89.6%) compared to seedling height (43.7 cm), root collar diameter (4.03 mm), root length (20.2 cm), seedling length (63.8 cm), root shoot ratio (0.46), number of leafs (5.93), leaf area (207.3 cm2 plant-), dry weight (7.8 g plant-) and percentage survival (65.2%) of medium seeds and seedling height (29.3 cm), root collar diameter (2.01 mm), root length (12.6 cm), seedling length (41.9 cm), root shoot ratio (0.43), number of leafs (3.66), leaf area (136.8 cm2 plant-), dry weight (5.1 g plant-) and percentage survival (46.1%) of small seeds.There was a significant correlation between seed size and seedling height (P=.05, r=.92), root length (P=.05, r=.93), root collar diameter (P=.05, r=.95), number of leafs (P=.05, r=.95), leaf area (P=.05, r=.90), dry weight (P=.05, r=.81), and percentage survival (P=.05, r=.82). This indicates that seed size could be used as parameter for predicting seedling growth rates in the nursery.
Conclusion: The present study has demonstrated the merits of grading seeds and that use of large size seeds for production of high quality transplants of Albizia lebbeck in the nursery is recommended.

Open Access Original Research Article

Wastewater Management Using an Aquatic and Semi-aquatic Plant species, Cattail (Typha domingensis) and Duckweed (Spirodela polyrhiza L.)

C. A. Byrne, A. Nankishore, A. A. Ansari

Journal of Agriculture and Ecology Research International, Page 75-80
DOI: 10.9734/JAERI/2015/15583

Constructed wetlands are excellent chemical-free system, for reducing physico-chemical parameters and faecal coliform densities. Present research work was carried from 2013 to 2014 with the objective of wastewater management using two plant species cattail (Typha domingensis) and duckweed (Spirodela polyrhiza L.), singly and in combination. The results indicated that parameters such as NH3+, DO, pH and turbidity, decreased in effluent from wetland containing cattails, duckweeds and both in combination. Other parameters such as EC, K, P, Cl and Na increased in effluent from one or more wetland trials. Faecal coliform reduction close to 47% was also noted. Absorption and uptake, by plants and microorganisms, appears to be the primary mechanism for nutrient removal, while parameters such as P, SO42- and Fe are removed through formation of bonds with particles in the soil. The study revealed wetlands containing both floating and emergent macrophytes play significant role in improving wastewater quality.

Open Access Original Research Article

Effect of Cow Dung and Urea Fertilization on Soil Properties, Growth, and Yield of Cucumber (Cucumis sativus L)

I. A. Nweke, L. N. Nsoanya

Journal of Agriculture and Ecology Research International, Page 81-88
DOI: 10.9734/JAERI/2015/14084

In this work, effect of cow dung and urea fertilization on soil properties, growth and yield of cucumber was evaluated. Four different rates of treatments [12 kgplot-1 cow dung (CW), 391 g ureaplot-1 equivalent to 150 kgha-1, 6 kg cow dung + 196 g urea equivalent to 75 kgha-1 thoroughly mixed (CWU) and CO kgplot-1 (control that received no treatment application)] were used. The treatments were applied following a randomized complete block design (RCBD). Results obtained showed significant differences between the treatments in the soil and in agronomic parameters assessed. The CWU treated plots recorded the highest value in all growth parameters measured. The values of the fruit yield vary from 3.21 kgha-1 – 8.29 kgha-1 with the highest value 8.29kgha-1 recorded in CWU treated plots. The CWU had the highest values in bulk density (1.41 gcm-3), moisture content (28.38%) and aggregate stability (32.05%) but showed non-significant values in hydraulic conductivity (2.45 cmhr-1) and least value in mean weight diameter (0.85). The results revealed that the combination of cow dung manure and urea fertilizer could enhance cucumber growth, yield quality and soil fertility in the studied area.