American Journal of Agriculture and Forestry最新文献

{"title":"Ecophysiology and Seedlings Nutrient Contents of Forest Species <i>Ricinodendron heudelotii </i>(Mull. Arg.) and <i>Cola acuminata </i>(P. Beauv.) Influenced by Biofertilizer and Salinity","authors":"Tchiaze Virginie, Lieujip Cyril, E. Serge, Fanteunti Ibrahim, T. Désiré","doi":"10.11648/j.ajaf.20241203.11","DOIUrl":"https://doi.org/10.11648/j.ajaf.20241203.11","url":null,"abstract":"<i>Ricinodendron heudelotii</i> and <i>Cola acuminata, </i>are important plants species whose exploitation became abusive over the years due to the high utilization of their fruits as Non-Timber Forest Products (NTFP). They face to multiple challenges: a recalcitrance of seeds and salinity that limits regeneration. Therefore, regeneration seems an appropriate corridor for domestication with the optimization of plant mycorrhizal symbiosis otherwise called arbuscular mycorrhizal fungi (AMF). But alongside this domestication can be added constraints due to salinity of the soils in coastal region. This justify the aim of this work which was to study dynamics and evaluate the effect of salinity and mycorrhizal biofertilizers on the <i>Ricinodendron heudelotii</i> and <i>Cola acuminata </i>seedlings. To undergo this purpose, data were collected in two villages (Kendje and Njombeng) in Mungo division, and assay were conducted in greenhouse at the Faculty of Science, University of Douala-Cameroon. In the field, the identification of species was assessed over an area of 1600 m² as well as the circumference of the trees, the individual number of <i>Ricinodendron heudelotii</i> and <i>Cola acuminata</i> among other species in order to assess their maturity and rarity in the forest. The second part was carried out in the greenhouse for the purpose of germination, obtaining seedlings and evaluating the effects of arbuscular mycorrhizal fungi (<i>Gisgaspora margarita</i>) as biofertilizers on the seedlings in saline conditions (0, 50, 100 and 200 mM of NaCl). Some parameters were determined on seedlings (plant growth, dry weight, distribution of ions in plant organs, chlorophyll and carotenoid content) over a period of twenty-six weeks. Globally <i>Cola acuminata </i>is more present in the forest (5.88%) than <i>Ricinodendron heudelotii</i> (1.47%) with average circumference of 105cm for both species. AMF-biofertilizer alleviates the deleterious effect of salt stress on plants growth parameters depending of concentration. Moreover, for those species, the distribution of Na⁺ is more accumulated in the root’s plants unlike K⁺ and P which are more concentrated in the leaves.\u0000","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Demand of Imported Rice in Mozambique (2011 - 2020)","authors":"Sandre Macia, Júlio Macuacua, Alfeu Vilanculos, Filipe Mahaluça","doi":"10.11648/j.ajaf.20241203.12","DOIUrl":"https://doi.org/10.11648/j.ajaf.20241203.12","url":null,"abstract":"Rice plays an important role in the food and nutrition security of the Mozambican population and has been importing rice to meet growing consumption needs. There are several studies regarding demand of imported rice worldwide. However, it is noted that despite the importance of imported rice in national consumption, the empirical and quantitative studies on the demand for imported rice in Mozambique are scarce. This study results from the need to contribute to filling the information gap by providing the quantification of the impact of income and price on the consumption of imported rice. Based on monthly rice import data from 2011 to 2020, obtained from INE, the Source Differentiated Almost Ideal Demand System (SDAIDS) model and the Seemingly Unrelated Rules (SUR) approach are applied to estimate demand systems for imported rice. The period was chosen due to availability of data. The results of this study show that the national production of rice still does not cover internal needs, so the country resorts to imports to fill the deficit. The elasticities of demand for rice imported into Mozambique show that all income elasticities of demand are statistically significant, except for “other countries” or Rest of the World. The results also show that when income increases by 1%, the demand for rice increases by 1.2% when coming from “Pakistan”, and by 1.1% when coming from “Singapore”, by 1.03% for “Vietnam”; and in for those from “Myanmar” (1.1%), which suggests that rice from these countries can be classified in the luxury goods category. The results also illustrate that when the price increases by 1%, the quantities demanded decrease, on average, by 1.06% for rice coming from “Pakistan”; by 1.06% for those from “Singapore”; 1.22% for those from “Myanmar”; 0.96% for those from “Vietnam”; by 0.89% for “India”; by 0.79% for “China”; in 0.974% for “Thailand” and in 0.56% for those coming from “other countries”. The low levels of production and productivity show that it is still a challenge to guarantee rice self-sufficiency in Mozambique, and efforts to improve supply must continue, since the country's dependence on imported rice can potentially create conditions of vulnerability and insecurity and adverse market effects have competitive advantages.\u0000","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140992474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of NPSB Blended Fertilizer and Varieties Onyield and Yield Components of Bread Wheat (Triticum aestivum L.) at Gimbi District, Western Oromia, Ethiopia","authors":"Dula Teshome, Garome Shifaraw","doi":"10.11648/j.ajaf.20241201.12","DOIUrl":"https://doi.org/10.11648/j.ajaf.20241201.12","url":null,"abstract":"","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":"111 50","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of NPS Fertilizer Rate to Improved Field Pea Varieties in the Highlands of Bale, South eastern Ethiopia","authors":"R. Dargie, T. Meleta","doi":"10.11648/j.ajaf.20241201.11","DOIUrl":"https://doi.org/10.11648/j.ajaf.20241201.11","url":null,"abstract":"","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139626669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Delay in the Demographic Transition Perpetuates Rural Poverty in Madagascar","authors":"Ramasy Razafindratovo Heritiana","doi":"10.11648/j.ajaf.20231105.12","DOIUrl":"https://doi.org/10.11648/j.ajaf.20231105.12","url":null,"abstract":"","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135805925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance Evaluation of Improved Plantain Banana (&amp;lt;i&amp;gt;Musa&amp;lt;/i&amp;gt; spp.) Varieties in West Hararghe Zone, Eastern Ethiopia","authors":"Gezahegn A ssefa, Sintayehu Girma, Dereje Deresa","doi":"10.11648/j.ajaf.20231105.11","DOIUrl":"https://doi.org/10.11648/j.ajaf.20231105.11","url":null,"abstract":"","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135196430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phenotypic Variability of Local Squash (&amp;lt;i&amp;gt;Cucurbita maxima&amp;lt;/i&amp;gt; Duch.) Grown in the Passoré Province of Burkina Faso","authors":"Soumbougma Benoît, Kiébré Mariam, Tiama Djakaridia, Kabré V. Nikodème, Kaboré Boukaré, Kiébré Zakaria, Bationo-Kando Pauline","doi":"10.11648/j.ajaf.20231101.15","DOIUrl":"https://doi.org/10.11648/j.ajaf.20231101.15","url":null,"abstract":"Squash (Cucurbita maxima Duch) is one of the vegetables-fruits grown and used in human nutrition and in the treatment of many diseases in Burkina Faso. The main objective of this study is to contribute to a better knowledge of the phenotypic variability of the local squash grown in the Passoré province. To this end, an agro-morphological characterization was carried out in a randomised complete block design with three replications under rain-fed conditions in a Sudanese-Sahelian climate. A total of 32 variables, including 21 quantitative variables and 11 qualitative variables relating to the vegetative development of the plant and fruit yield, were measured. This study has shown the existence of a phenotypic diversity on the color and form of fruits and agro-morphological diversity based on the female characters flowering time (FLF), male flowering time (FLM), fruit length (LFT) and fruit diameter (DMF) organized in three (3) morphological groups. The Group 1 is composed of early flowering plants with small leaves and fruits and late maturity of fruits. Group 2 is the opposite of group 1 and is made up of accessions with large fruits and big seeds. As for Group 3 it is composed of high performance accessions with large leaves and fruits of high length and diameter.","PeriodicalId":470510,"journal":{"name":"American Journal of Agriculture and Forestry","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135553461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}