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Ecological Structure and Fruit Production of African Fan Palm (<i>Borassus aethiopum</i>) Populations

American Journal of Plant Sciences 2011年第6期2卷 733-743页

作者： christine ouinsavi Charlemagne Gbémavo Nestor Sokpon 不详

Ecological structure and fruit production of African fan palm stands in Benin were studied on the basis of surveys laid out in ten (10) populations located in three ecological zones. Dendrometric and fruit production parameters such as: diameter at breast height (dbh), total height (TH), number of fruit bunch per tree, number of fruits per tree, number of seeds per fruit, fruit length and width were measured on all African fan palm trees within thirteen (13) plots of 1,000 m2. Diameter and height classes distribution of the palms in each ecological zone adjusted to Weibull distribution showed a bell shaped curve with left dissymmetry, characteristic of young stands (form coefficient between 1 and 3.6). African fan palm stem number was 156 trees/ha. Variation of dbh, TH, number of fruit bunch per tree were highly significant between populations and ecological zones (P < 0.05%). Trees from Sudanian zone were highly grown (mean dbh = 52.2 cm) while those of Sudano - Guinean transition zone were less (mean dbh = 32.73 cm) and dominated by female trees. African fan palm stands of Pahou is suitable for seed collection for in situ conservation of the species while those of Ouorghi and Akomiah could provide fruits for edible hypocotyls production.

关键词： Ecological Structure African Fan Palm Fruit Production Population

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Morphological Variability of <i>Prosopis africana</i>(Guill., Perrott. Et Rich.) Taub in Benin, West Africa

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American Journal of Plant Sciences 2015年第7期6卷 1069-1079页

作者： Houètchégnon Towanou Gbèmavo D. S. J. Charlemagne ouinsavi christine Sokpon Nestor Laboratoire d’Etudes et de Recherches Forestières (LERF) Faculté d’Agronomie Université de Parakou Parakou Bénin Faculté des Sciences Agronomiques Université d’Abomey-Calavi Abomey-Calavi Bénin

The morphological variability of Prosopis africana in its natural range (which includes three climate zones: Guinean zone, Sudano-Guinean zone and Sudanese zone) of Benin was studied on the basis of forest inventory carried out in three different vegetation types (savannah, fallow and field). The data recorded in 139 plots of 1000 m2 each related to the diameter at breast height (1.3 m over the ground level), the bole height, the height to the first branch, crown height, the crown diameter, number of branches on each individual tree. In these plots, 143 sheets were used to determine the length of leaf, the pinna length, leaflets’ length, numbers of pinna, the number of leaflets, and the stalk diameter. In addition, 735 cloves were measured to determine the fruit pods’ diameter, pod length, the total fruit weight and number of seeds per fruit, the seed length, the weight of a seed, and pulp weight. Analysis of variance components shows that the variability of Prosopis is generally greater among individuals than within vegetation types and climatic zones. Discriminant analysis showed that of the 19 morphometric characters seven (7) in the vegetation types and twelve (12) in climate zones revealed a statistically significant discriminating pattern r (prob. P. africana trees measured, 10 morphogroups were depicted on the basis of 19 morphometric characteristics (R2 = 52.6%).

关键词： Morphological Variability Climate Zone Prosopis africana Benin West Africa

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Morphological Characterization of the Blood Plum (Haematostaphis barteri Hook. F. (Anacardiaceae)) in the Republic of Benin

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Journal of Agricultural Science and Technology(B) 2020年第2期10卷 106-117页

作者： Bienvenue Nawan Kuiga Sourou Towanou Houetchegnon christine ouinsavi Laboratory of Forestry Studies and Research Faculty of AgronomyUniversity of ParakouParakouParakou BP:123Benin

Understanding species morphological variation across geographical ranges can serve as a first step for germplasm collection and the conservation of genetic *** morphological variability of Haematostaphis barteri Hook.F.(Anacardiaceae)in Benin(West Africa)was studied,using 11 traits related to panicles,fruits,leaves and leaflets.A total of 1,485 panicles,1,485 fruits,990 leaves and 4,950 leaflets were *** was found that the sample provenance and site topography have a significant influence on the morphological *** discriminating morphological traits were the length of the panicles,the number of fruits per panicle,the length and width of fruits,the mass of the fresh fruit pulp mass,the length of leaves and petioles,the number of leaflets per leaf,length and width of *** the basis of these traits,four different morphotypes of *** were identified,with however a small intra and inter group *** morphotype from sites established on the tops and the high slopes of hill produced larger and heavier fruits with higher pulp *** morphotype could be of interest for future varietal selection programs for the species in Benin.

关键词： Benin Haematostaphis barteri morphological variability provenance topography

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