检索结果-南通市图书馆

Determination of the Genetic Structure of the Oleaginous Lagenaria sicerariaof the Nangui Abrogoua University Germplasm Collection

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2015年第19期6卷 3231-3243页

作者： Ahou Anique Gbotto Kouamé Kevin Koffi Jean-Pierre Baudoin irié arsène zoro bi Laboratoire de Génomique Fonctionnelle et Amélioration Génétique (LaGeFAGe) UFR-SN Université Nangui Abrogoua Abidjan C&ocirc te d’Ivoire Unité de Phytotechnie Tropicale et d’Horticulture Gembloux Agro Bio Tech Université de Liège Gembloux Belgium

Thirty accessions of Lagenaria siceraria from the Nangui Abrogoua University germplasm collection were analyzed using three microsatellite markers. The average Polymorphism Information Content (PIC) value was 0.61. The average observed heterozygosity value (H0 = 0.631) compared to the average expected heterozygosity value (He = 0.645) did not show significant differences in the selected accessions, which suggested random mating in the set of accessions. Within accession inbreeding estimate (FIS), was 40% and was not significantly different from zero. The reduction of heterozygotes was likely the result of presence of null alleles. Analysis of Molecular Variance (AMOVA) within and among 30 accessions of L. siceraria revealed that 39% of the total variation resides among accessions and 61% within accessions. Accession structuring pattern derived from Bayesian clustering analysis revealed two clusters. Based on the genetic structure of the accessions analyzed, a sampling strategy to collect and conserve genetic resources of L. siceraria was suggested.

关键词： Genetic Structure Lagenaria siceraria Null Alleles Oleaginous SSR

Medium effects on micropropagation and genetic stability of Citrullus lanatus oleaginous type

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences 2013年第7期4卷 32-44页

作者： Yah Gwladys Gnamien irié arsène zoro bi Yatty Justin Kouadio Yves Brostaux Jean-Pierre Baudoin Laboratory of biology and Improving Vegetable Productions Natural Sciences UnitUniversity Nangui Abrogoua(UNA)AbidjanCote d’Ivoire Tropical Crop Husbandry and Horticulture Gembloux Agro-Bio Tech(GxABT)University of LiègeGemblouxBelgium Department of Applied Statistics Computer Science and MathematicsGembloux Agro-Bio Tech(GxABT)University of LiègeGemblouxBelgium

To regenerate adventitious shoots from the cotyledon proximal parts of Citrullus lanatus (Thunb.) Matsum. and Nakai ssp. mucosospermus (Fursa) oleaginous type, different concentrations of MS mineral elements, sucrose, 6-benzylaminopurine (BAP) and agar were tested. Shoot induction proved to depend on the interaction between levels of sucrose, BAP and MS mineral elements in the medium. The medium containing 3/2 strength of MS mineral elements, 35 g/l sucrose and 1 mg/l BAP solidified with 6 g/l agar allowed the production of numerous shoots without a callus phase. After 3 weeks of culture, 76.7% of the cotyledon proximal parts induced shoots with an average of 12.26 shoots per explant and a mean shoot length of 17.13 mm. The induced shoots were directly rooted and thus complete plants ready for acclimatization were obtained using a two steps procedure. Depending on the genotype, the shoot induction from cotyledon proximal parts ranged from 54% to 96%. Rooted plantlets were acclimatized and transferred to field, where they grew well, developed flowers and fruits like seeded plants. The assessment of the genetic stability of the in-vitro-regenerated plantlets by means of an Amplified Fragment Length Polymorphism (AFLP) analysis with the combination of 5 primers revealed no differences between regenerated plantlets and mother plants.

关键词： AFLP Genetic Stability In Vitro Oleaginous Seeds Organogenesis

Enhancing Tomato (Solanum lycopersicum L.) Fruit Yield and Quality and Blossom End Rot Control Using Different biological Calcium Sources

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Chemistry and Environment 2023年第3期12卷 263-274页

作者： Alain Serge Coulibaly Kouakou Laurent Kouakou Jonas Patrick Dao Camille Kouakou Juliette Ky Dedi irié arsène zoro bi Training and Research Unit of Sciences of Nature Laboratory of Biology and Improvement of Plant Production Nangui Abrogoua University Abidjan C&ocircte d’Ivoire Phytotechnical Unit and Genetic Improvement Training and Research Unit of Sciences of Nature Nangui Abrogoua University Abidjan C&ocircte d’Ivoire Training and Research Unit of biosciences Plant Physiology Laboratory Felix Houphou&eumlt Boigny University Abidjan C&ocircte d’Ivoire

Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The experiment was conducted in a block factorial trial with three replications. The trials comprised two factors: calcium sources and calcium source form (powder and extract). The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. Also, BER was lower in plants treated with calcium contrary to the control. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.

关键词： Tomatoes Blossom End Rot Eggshells Snail Shells Seashells

维普期刊数据库

Effect of Leafy and Leafless Greenwood, Softwood and Hardwood Cuttings Success of Garcinia kola(Heckel)

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2020年第10期11卷 897-911页

作者： Jonas Patrick Dao Kouakou Laurent Kouakou Camille Kouakou Mamadou Cherif Mahamadi Hamed Ouedraogo Kouame Kevin Koffi irié arsène zoro bi Training and Research Unit of Sciences of Nature Laboratory of Biology and Improvement of Plant Production Nangui Abrogoua University Abidjan C&#244 te d’Ivoire Training and Research Unit of biosciences Plant Physiology Laboratory Felix Houphou&#235 t Boigny University Abidjan C&#244 te d’Ivoire Phytotechnical Unit and Genetic Improvement Training and Research Unit of Sciences of Nature Nangui Abrogoua University Abidjan C&#244 te d’Ivoire Training and Research Unit of Life and Earth Sciences Biosciences Laboratory Genetics and Plant Breeding Joseph Ki-Zerbo University Ouagadougou Burkina Faso

Garcinia kola Heckel, called “petit cola” in Côte d’Ivoire and “bitter kola” in Nigeria, is a Non-Timber Forest Product of great socioeconomic importance. Unfortunately, this species is threatened due to overexploitation and deforestation. This study tested the effect of leaf area on stem cuttings to regenerate vegetatively in a non-mist poly-propagator without using exogenous hormones. Three stem cuttings types: greenwood, softwood and hardwood (12 - 15 cm in length) were collected from 24-month years old seedlings. The two top leaves of each cutting type were conserved at different leaf area: 0 cm2, 28.25 cm2, 56.5 cm2, 84.75 cm2 and 113 cm2 (entire leaf area). Observations were made on rooting, sprouting and leafing abilities of cuttings depending to treatments applied. Results showed that all cutting types have presented good ability to shooting and rooting. Cuttings with 113 cm2 leaf areas presented the best rooting (94.44% ± 2.42%) and shouting (95.55% ± 2.42%) percentage and longest primary root length (12.03 ± 0.50 cm). Hardwood, softwood and greenwood cuttings with 113 cm2 leaf area had the best rooting percentage (96.66% ± 3.33%, 96.66% ± 5.77% and 90.00% ± 5.77% respectively). The longest primary root length (13.50 ± 0.97 cm) was observed to greenwood cuttings with 113 cm2 leaf area. Regenerated plants in the forest presented well survival percentage (96.66%). This study shows that it is possible to regenerate entire plants by cuttings without using external hormones in non-mist poly-propagator.

关键词： Garcinia kola Heckel Leaf Area Non-Mist Poly-Propagator Stem Cuttings Vegetative Propagation

Comparative Effects of Organic Cocoa Shell-Based and Inorganic NPK Fertilization on the Growth and Yield of Four Cassava Varieties

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Soil Science 2020年第6期10卷 217-232页

作者： Konan Kouakou Marius Kouamé N’guessan Kouassi Kouadio Ignace Koffi Kouamé Kévin Kouamé Kouassi zoro bi irié arsène Dogbo Dénézon Odette Plant Production Research Unit Department of Natural Sciences University Nangui Abrogoua Abidjan C&#244 te d’Ivoire Plant Production Research Unit Department of Natural SciencesUniversity Nangui Abrogoua Abidjan C&#244 te d’Ivoire Improvement of Crop Production Department of Agroforestry University Jean Lorougnon Guédé Daloa C&#244 te d’Ivoire Improvement of Crop Production Department of AgroforestryUniversity Jean Lorougnon Guédé Daloa C&#244 te d’Ivoire Ecology and biodiversity Research Unit Department of Natural SciencesUniversity Nangui Abrogoua Abidjan C&#244 te d’Ivoire

Looking of finding an alternative to the use of chemical fertilizers to increase yields of cassava (Manihot esculenta), trials were carried out in the Lamto zone in central Côte d’Ivoire. Thus, the effects of compost and ash from cocoa shell and NPK were tested on the agronomic parameters of cassava. The trial was conducted for two years with four varieties of cassava: Yacé, Alleda agba, Six mois and Bonoua, grown on elementary plots treated with one of these fertilizers. The experimental design was complete randomized blocks with three replicates. Analysis of the results showed that the Six mois variety gave the longest stems (131, 67 cm) with the cocoa shell compost. The Bonoua variety, on the other hand, gave the largest diameter of the stem base (21.56 mm), a higher number of leaves (77.30) and a large wingspan (136.

Morphological Diversity and Distribution of Garcinia kolaHeckel (Clusiaceae) in Two Agro-Ecological Areas of Côte d’Ivoire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2019年第10期10卷 1871-1887页

作者： Any Olivier Komenan Kouamé Kévin Koffi Ahou Anique Gbotto Moussa Kone Doffou Sélastique Akaffou Kouakou Laurent Kouakou Kouadio Ignace Kouassi bi irié arsène zoro Phytotechnical Unit and Genetic Improvement (PUGI) Training and Research Unit (TRU) of Science of Nature Nangui Abrogoua University Abidjan Cote d’Ivoire Agroforestry Training and Research Unit Jean Lorougnon Guédé University Daloa Cote d’Ivoire Science of Nature Training and Research Unit Nangui Abrogoua University Abidjan Cote d’Ivoire

The purpose of this study is to determine the morphological diversity and distribution of Garcinia kola Heckel (Clusiaceae) in two preferential agro-ecological growth areas in Cote d’Ivoire, for the sustainable management of the species. Ninety-four (94) trees of G. kola were sampled in Affery (south) and biankouma (west) and characterized on the basis of 13 quantitative characteristics of the fruit, the general appearance of a plant, leaves and seeds. This study revealed the existence of very significant variability and differences within the trees sampled for most characteristics. Very strong correlations were found among the characteristics of the fruits. On the basis of these characteristics, it emerged that the fruits of the biankouma area are larger than those of Affery. Multivariate analyses show that diversity is structured with tree distribution into four distinct groups based on the following discriminating characteristics: fruit height (Hfr), leaf width (largF), seed mass (Mgr) and trunk diameter (Dm). These parameters can be used as a basis for selecting and maintaining the high variability of G. kola. Analysis of the geographical distribution of trees, based on the nearest neighbour model, revealed an aggregate distribution in both areas.

关键词： Garcinia kola Heckel Morphological Variability Geographical Distribution Discriminating Characteristics

Robust interface and excellent as-built mechanical properties of Ti–6Al–4V fabricated through laser-aided additive manufacturing with powder and wire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 154-168页

作者： Fei Weng Guijun bi Youxiang Chew Shang Sui Chaolin Tan Zhenglin Du Jinlong Su Fern Lan Ng Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of EducationShandong Engineering&Technology Research Center for Superhard MaterialSchool of Materials Science and EngineeringShandong UniversityJinan 250061China Institute of Intelligent Manufacturing Guangdong Academy of SciencesGuangzhou 510095China Singapore Institute of Manufacturing Technology 5 Cleantech Loop636732Singapore

The feasibility of manufacturing Ti-6Al-4V samples through a combination of laser-aided additive manufacturing with powder(LAAM_(p))and wire(LAAM_(w))was explored.A process study was first conducted to successfully circumvent defects in Ti-6Al-4V deposits for LAAM_(p) and LAAM_(w),*** the optimized process parameters,robust interfaces were achieved between powder/wire deposits and the forged substrate,as well as between powder and wire *** characterization results revealed the epitaxial prior β grains in the deposited Ti-6Al-4V,wherein the powder deposit was dominated by a finerα′microstructure and the wire deposit was characterized by lamellar α *** mechanisms of microstructure formation and correlation with mechanical behavior were analyzed and *** mechanical properties of the interfacial samples can meet the requirements of the relevant Aerospace Material Specifications(AMS 6932)even without post heat *** fracture occurred within the interfacial area,further suggesting the robust *** findings of this study highlighted the feasibility of combining LAAM_(p) and LAAM_(w) in the direct manufacturing of Ti-6Al-4V parts in accordance with the required dimensional resolution and deposition rate,together with sound strength and ductility balance in the as-built condition.

关键词： laser-aided additive manufacturing powder deposition wire deposition interfacial characteristic mechanical behavior

biometric Analysis on Genetic Divergence between Parental and Regenerated Accessions in Tall Coconut Palms (Cocos nucifera L.) from International Genebank for Africa and the Indian Ocean

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Open Journal of Genetics 2022年第2期12卷 11-23页

作者： Saraka Didier Martial Yao Wentoin Alimata Marie Pierre Daramcoum Eric-Blanchard Zadjéhi Koffi Konan Jean Louis Konan Nafan Diarrassouba Bourdeix Roland Raoul Sylvère Sie irié arsène zoro bi Department of biochemistry and Genetics Pedagogical and Research Unit (UPR) of Genetics Shea Breeding Program University of Peleforo Gon Coulibaly (UPGC) Korhogo C&#244 te d’Ivoire Centre National de Recherche Agronomique (CNRA) Marc Delorme Research Station of Port-Bou&#235 t Abidjan C&#244 te d’Ivoire CEFE-CNRS Montpellier France Department of Natural Science Nangui Abrogoua University Abidjan C&#244 te d’Ivoire

This study endeavour assesses agromorphological likeness between initial introductions and regenerated accessions at the International Coconut Genebank for Africa and the Indian Ocean (ICG-AIO) based in C?te d’Ivoire. Ten couples of parental (G0) and regenerated (G1) accessions of Tall coconut palms were analyzed using Principal Component Analysis (PCA) and Multiple Analysis of Variance (MANOVA) from 26 agromorphological characters. The main results showed a relative decrease in the expression of the phenotypical traits concerning the component of the fruit, height and vigor of the stem and yield of bunches and fruits after one regeneration cycle. But, a high proportion (69%) of studied characters from leaf, inflorescence and nut components showed likeness between G0 and G1 accessions. After one regeneration cycle, the controlled pollination method guarantees significant conservation of the expression of the majority of agromorphological traits. Consequently, regenerated accessions of Tall coconut palms can be used to pursue research and development programs in C?te d’Ivoire.

关键词： Agromorphological Likeness Controlled Pollination Côte d’Ivoire Regenerated Accessions Tall Coconut

Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

neural Regeneration Research 2025年第4期20卷 1164-1177页

作者： Pengfei Wang Yuewei bi Min Li Jiazhi Chen Zhuyong Wang Huantao Wen Ming Zhou Minjie Luo Wangming Zhang neurosurgery Center Department of Pediatric NeurosurgeryGuangdong Provincial Key Laboratory on Brain Function Repair and RegenerationZhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

Long-term levodopa administration can lead to the development of levodopa-induced *** oscillations are a widely recognized hallmark of abnormal neural electrical activity in levodopa-induced ***,studies have reported increased oscillation power in cases of levodopa-induced ***,little is known about how the other electrophysiological parameters of gamma oscillations are altered in levodopa-induced ***,the role of the dopamine D3 receptor,which is implicated in levodopa-induced dyskinesia,in movement disorder-related changes in neural oscillations is *** found that the cortico-striatal functional connectivity of beta oscillations was enhanced in a model of Parkinson’s ***,levodopa application enhanced cortical gamma oscillations in cortico-striatal projections and cortical gamma aperiodic components,as well as bidirectional primary motor cortex(M1)↔dorsolateral striatum gamma *** of PD128907(a selective dopamine D3 receptor agonist)induced dyskinesia and excessive gamma oscillations with a bidirectional M1↔dorsolateral striatum ***,administration of PG01037(a selective dopamine D3 receptor antagonist)attenuated dyskinesia,suppressed gamma oscillations and cortical gamma aperiodic components,and decreased gamma causality in the M1→dorsolateral striatum *** findings suggest that the dopamine D3 receptor plays a role in dyskinesia-related oscillatory activity,and that it has potential as a therapeutic target for levodopa-induced dyskinesia.

关键词： aperiodic components dopamine D3 receptor dorsolateral striatum functional connectivity gamma oscillations levodopa-induced-dyskinesia local field potentials neuromodulation Parkinson’s disease primary motor cortex