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Techniques of Domestication and Carbon Sequestration of Jatropha curcas Associated with Vigna unguiculata in Marginal Soil of Garoua Region, Cameroon

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Journal of Life Sciences 2016年第5期10卷 245-259页

作者： Tchobsala Megueni Clautilde souare konsala Njintang Yanou Nicolas Sadou Ismael Patrick Prudent Palou Oumarou Faculty of Science University of Ngaoundere P.O. Box 454 Cameroon Faculty of Science University of Maroua P.O. Box 814 Cameroon Institute of Agricultural Research and Development Maroua P.O. Box 33 Cameroon Institute of Agricultural Research and Development Garoua P.O. Box 415 Cameroon

In order to reduce the increase of fuel prices, and improve the living conditions of the population, a study was carried out by Convention No. 1/IRAD/PCS ESA2-SDCC in the region of Garoua in Cameroon. The study aimed to characterize the behaviour ofJ. curcas associated with V. unguiculata in marginal soils in the Sahel region in order to improve the livelihoods of the farmers and promote its domestication in rural areas. It also aimed at pointing out the influence of two implantation techniques of d. curcas on the germination, the different quantities of NPK and cow dung, planting techniques and association with V. unguiculata var. lori on growth parameters of development and yield of J. curcas on the degraded marginal soils in the region. The experimental design was a completely randomized block with five levels of fertilization （F0： control; FI： 50 g; F2：100 g of NPK 15-20-15; F3：1 kg and 2 kg of cow dung） per plant. Two types of establishment propagator （Ge） and direct seedling （Se） with three replications were used. Data were analysed by Stratigraphic ＋ and XLSTAT. Results showed that the propagator germination was higher than the direct seeding, 95% and 40% respectively. The Principal Component Analysis （PCA） of the parameters of growths and yield of J. curcas showed high correlation between the production of the leaves and the length of the leaves （R = 0.861; P 〈 0.001）. These parameters were correlated with the Biplot （F1 and F2） to 53.24%. It was opposed to the positives and imperfect correlation between the height and the recover parameters （R = 0.486; P 〈 0.05）. The treatments 100 g of NPK per plant and 2 kg of cow dung per plant induced strongly the development and yield ofJ. curcas and V. unguiculata adapted to marginal soils.

关键词： Domestication Jatropha curcas culture association production carbon sequestration Garoua Cameroon.

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