Open Access Original Research Article

Determinants of Medicinal Plants Usage for Traditional Herbal Medicine among Villagers in Ibadan, Oyo State, Nigeria

O. C. Ariyo, M. O. Ariyo

Asian Journal of Research in Agriculture and Forestry, Page 1-14
DOI: 10.9734/AJRAF/2018/40141

The study was designed to access the determinants of medicinal plants for traditional herbal medicine among villagers living at the perimeter fence of International Institute of Tropical Agriculture (IITA), Ibadan, Oyo State, Nigeria. The multistage sampling procedure was adopted for the study. A total number of four hundred and eight respondents comprising of farmers, hunters, herbalists and herb sellers were randomly selected and interviewed using copies of a well-structured questionnaire. Data were analysed using descriptive statistics, Probit and Tobit regression analysis. The study showed that the average ages of farmers and hunters were 55 and 57 years while the average age of herb sellers was 43 and herbalist 63 years. Majority of the respondents pooled together were males, married with an average age of 55 years and household size of 7 members. The larger percentage of them were native of the study area, not educated, not employed, but having the monthly income between 12,000- 20,000 naira and closer to the forest by 1-9 km. The study further revealed that there was a significant relationship between the use and intensity of use of medicinal plants for traditional herbal medicine and factors that determine it. Variables such as age, religion, sex, believe in traditional herbs, forest medicinal plants used in treating any ailment in the past, nearness to the forest, the presence of healthcare medical centre, poverty status and income were significant at 1% probability level. Household size and occupation was significant at 5% level while the location was significant at 10% level of significance. The study, therefore, recommends that conservation and domestication of these valuable medicinal plants should be a priority to prevent their extinction and ensure their continues supply to people that need them.

Open Access Original Research Article

Response of Maize Forage Yield and Quality to Nitrogen Fertilization and Harvest Time in Semi−arid Northwest China

Shirley Lamptey, Stephen Yeboah, Lingling Li

Asian Journal of Research in Agriculture and Forestry, Page 1-10
DOI: 10.9734/AJRAF/2018/40968

Aim: Maximizing the soil nutrient of grain and forage maize production is vital to guarantee enough grains and fodder supply to meet the human and livestock demand. This study was done to investigate the effect of nitrogen fertilization and harvest time on growth, yield and quality of fodder maize (Zea mays L.).

Study Design: The experimental design was a randomized complete block design with four treatments replicated three times.

Place and Duration of Study: Field experiment was conducted in 2014, 2015 and 2016 cropping seasons at the Dingxi Experimental Station, Gansu Province Northwest China.

Methodology: The treatments were fertilizer rates applied planting at 0. 100, 200, and 300 kg ha-1 (referred to as N0, N100, N200, and N300, respectively). 

Results: It was found out that N300 treatment increased forage yield at 60 days after sowing (DAS) (by 127, 48 and 15%), at 90 DAS (by 83, 45 and 16%), at 120 DAS (by 78, 41 and 13%) and at 153 DAS (by 86, 46 and 14%) as compared to N0, N100 and N200 respectively. Application of N300 increased grain yield by 79, 56 and 8% compared to N0, N100 and N200 respectively; and also increased crude protein (%) across years and growth stages, respectively, by 42, 19 and 3%. At a lesser magnitude, application of N200 also increased forage and grain yield compared to N0. Acid detergent fibre and neutral detergent fibre was decreased with N fertilization (i.e., N100, N200 and N300) compared with N0, which consequently increased relative feed value.

Conclusion: From this study, N300 treatment appear to be the optimal rate of N fertilization for improved forage yield and quality of maize in the semi−arid Loess Plateau.

Open Access Original Research Article

The Prediction of Leaf Biomass Production from Faidherbia albida in Semi Arid Land, Pokot County, Kenya

Yuda Odongo Owino, Peter Kipkosgei Sirmah, Joseph Hitimana

Asian Journal of Research in Agriculture and Forestry, Page 1-10
DOI: 10.9734/AJRAF/2018/40867

Faidherbia albida tree is important in feeding the livestock during dry seasons when livestock feed is scarce among the people in the semi-arid regions. Despite this unique value of the tree, no models have been developed for estimating its local leaf biomass production, thus hampering its resource assessment and management planning. Hence this study was conducted to determine allometric relationships between leaf biomass production from F. albida tree and its diameter at breast height, tree height and crown diameter. Between January and March 2016, random sample of 20 trees were partially harvested in Chepareria Division. Diameter at breast height, crown diameter and total tree height were measured in the field. Sample weights of the leaves were determined then extrapolated to the whole tree production and used as a basis for developing leaf biomass models. Correlation regression analysis as provided in R-software was used to establish the relationship between F. albida leaf biomass production and the measurable tree parameters. Nine models were fitted in the study and their suitability in predicting leaf biomass established. Comparison of different models was based on: adjusted coefficient of determination (adj. R2); significance of parameter estimates when tested at the 5% probability level; homogeneity of residual variance and distribution of the residuals; Standard Error of the Estimates (SEE). Among tested models, the study suggested  with adjusted R2 = 0.82 for local use. 

Open Access Original Research Article

Fruit and Seed Yields of Watermelon [Citrullus lanatus (Thunb.) Matsum. and Nakai] Grafted onto Different Bottle Gourd (Lagenarai siceraria Molina Standl.) Rootstocks

Halit Yetişir, Nebahat Sari

Asian Journal of Research in Agriculture and Forestry, Page 1-9
DOI: 10.9734/AJRAF/2018/41245

In this study, the effect of rootstock on seed yield of watermelon was investigated. The watermelon [Citrullus lanatus (Thunb.) Matsum and Nakai] cultivar Crimson Tide was grown three successive years by grafting onto Lagenaria type rootstocks to investigate rootstocks effects on seed yield. Skopje, Emphasis, 216 and FRG (hybrid) and Birecik (landraces) were used as rootstock and ungrafted Crimson Tide watermelon cultivar was used as the control. The study was conducted in research area of Department of Horticulture, Faculty of Agriculture,  University of Cukurova located in Cukurova region, Southern Turkey, where watermelon cultivation is conducted mostly under low tunnels for early production. Plants were grafted by hole insertion grafting method and grown under low tunnel conditions until the outdoor temperature was suitable (22-25ºC) for watermelon production.  Fruit yield, seed number/kg fruit flesh, seed number per fruit and unit area were significantly affected by rootstocks and the grafted plants produced higher seed yield than the ungrafted control plants regardless of growing year. Rootstocks with vigorous root system caused increased seed yield by promoting plant growth, fruit number and fruit size in grafted watermelon.

Open Access Original Research Article

Morphological Variability of Detarium microcarpum Guill. & Perr. (Caesalpiniaceae) in Benin, West Africa

Agbo Ignace Relique, Missihoun Antoine Abel, Dagba Aladé Rollande, Assogbadjo Ephrem Achille, Agbangla Clément

Asian Journal of Research in Agriculture and Forestry, Page 1-12
DOI: 10.9734/AJRAF/2018/41234

Aims: The present study aims to evaluate the morphological diversity of Detarium microcarpum populations in Benin for the conservation purpose.

Methodology: Twelve quantitative and two qualitative variables were used in the phenotypic diversity based on the phytodistrict and soils groups of 78  D. microcarpum trees sampled in six phytodistrict of Benin. In order to access the phenotypic variability of the trees, the morphological variables were subjected to ANOVA one-way. Hierarchical ascending classification was also performed to group D. microcarpum populations based on the degree of similarity.

Results: Results showed that the leaves and fruits of D. microcarpum trees were highly polymorphic. The phytodistrict and soil group significantly influence the variability of the morphological descriptors used. Three morphotypes were obtained from D. microcarpum population used, with an important inter-groups variability for the descriptors.

Conclusion: The phenotypic variability observed suggested a fairly large genetic diversity of Detarium microcarpum. Trees belonging to subpopulation I (trees from Bassila and North Borgou phytodistricts) had the best fruit characteristics and could be used for varietal selection in Benin.