Effet De Prétraitements, De Substrats Et De Stress Hydriques Sur La Germination Et La Croissance Initiale De Diospyros Mespiliformis Hochst. Ex A.DC

  • Ali Ado Université d’Agadez, Faculté des Sciences et Techniques, BP 199 Agadez, Niger, Université Abdou Moumouni de Niamey, Faculté des Sciences et Techniques, Département de Biologie Laboratoire Garba Mounkaila, BP 10662, Niamey, Niger
  • Issoufou Hassane Bil-Assanou Université Dan Dicko Dankoulodo de Maradi, Faculté d’Agronomie et des Sciences de l’Environnement, Département des Sciences et Techniques de Productions Végétales, BP 465, Maradi, Niger
  • Dan Guimbo Iro Université Abdou Moumouni de Niamey, Faculté d’Agronomie, Département de Génie Rural-Eaux Forêts BP 10960, Niamey, Niger
  • Toudou Daouada Abdoul Karim Université Abdou Moumouni de Niamey, Faculté des Sciences et Techniques, Département de Biologie Laboratoire Garba Mounkaila, BP 10662, Niamey, Niger
  • Mahamane Ali Université Abdou Moumouni de Niamey, Faculté des Sciences et Techniques, Département de Biologie Laboratoire Garba Mounkaila, BP 10662, Niamey, Niger
  • Saadou Mahamane Université Abdou Moumouni de Niamey, Faculté des Sciences et Techniques, Département de Biologie Laboratoire Garba Mounkaila, BP 10662, Niamey, Niger

Abstract

This study is on the seeding and the initial growth of a food species, Diospyros mespiliformis, in Niger. Diospyros mespiliformis is an overexploited food species in Niger. The aim of this study is to determine the optimal conditions for germination and seedling growth of this species. In doing so, seed germination tests were conducted in petri dishes laboratory and seedling growth survey respectively. Also, the nursery was done using bags. The treatments involve the seed staying in warm water for 1, 3, 5, 7 days; scalding; and mechanical scarification. In the nursery, the substrates used are alluvial soil and alluvial soil mixed in 1/4, 1/3, and 1/2 of organic manure. As a result, the growth monitoring is done on plants kept in the shade. Others were exposed to the sun for 12 months by applying water stress (watering every day; 2 and 1 times per week; and without watering). Thus, the germination capacity is 55, 4% without treatment and it reached 74% by scalding. The conservation makes it reduce to 43% after 6 months and 25% after 1 year. In the nursery, the emergence rate is 52,8 % in alluvial soil, but it reduced to 10% in the substrate (soil 1/2 and 1/2 fertilizers). D. mespiliformis growth is slow during cold weather and becomes fast during hot weather. When the weather is shady or sunny, this species supports four months of drought by developing a significant root system. D. mespilformis can be used for afforestation.

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Published
2017-07-31
How to Cite
Ado, A., Bil-Assanou, I. H., Iro, D. G., Karim, T. D. A., Ali, M., & Mahamane, S. (2017). Effet De Prétraitements, De Substrats Et De Stress Hydriques Sur La Germination Et La Croissance Initiale De Diospyros Mespiliformis Hochst. Ex A.DC. European Scientific Journal, ESJ, 13(21), 231. https://doi.org/10.19044/esj.2017.v13n21p231