Etude du comportement germinatif et essais de levée de l’inhibition tégumentaire des graines de &lt;em&gt;Zornia glochidiata&lt;/em&gt; Reichb. ex DC., légumineuse fourragère

Mbaye, Nalla; Diop, Amadou Tamsir; M, Gueye; Diallo, Ahmed Tidjane; Sall, Cheikh; Samb, Papa Ibra

doi:10.19182/remvt.9845

Cited by 7 publications

(3 citation statements)

References 2 publications

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“…Ce résultat est similaire aux travaux antérieurs. Ces auteurs ont trouvé que de nombreuses expériences concernant le traitement des semences font ressortir que le facteur temps est un facteur important pour l'induction d'une bonne activité germinative (Mbaye, 2002 ;Kheloufi, 2017). En plus, l'eau et l'oxygène n'auraient pas pu atteindre l'embryon à cause de l'imperméabilité des téguments.…”

Section: Multiplication Par Voie Des Grainesunclassified

Capacité germinative des graines et aptitude au bouturage des tiges, des racines tubéreuses de l’espèce Ampelocissus multistriata(Baker) Planch.

Nguinambaye¹,

Nadjioroum²,

Brahim³

2021

Int. J. Bio. Chem. Sci

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Cette étude s’inscrit dans le contexte de la valorisation des espèces végétales spontanées ayant des valeurs nutritives et économiques afin de contribuer à leur domestication. Cette étude a consisté à tester les capacités germinatives des graines de l’Ampelocissus multistriata par les procédés physiques, chimiques et mécaniques d’une part et tester l’aptitude au bouturage des tiges feuillées, des tiges feuillées avec des racines tubéreuses d’autre part. Pour cela, une surface de 400 m2 a été délimitée au sein de la Faculté des Sciences Exactes et Appliquées de l’Université de N’Djamena pour les deux tests. Par ailleurs, les procédés physiques, chimiques et mécaniques ont été menés à l’Université de Ouagadougou. Les résultats obtenus, ont montré que les tiges feuillées n’ont pas bouturé. Par contre, les tiges feuillées munies des racines tubéreuses ont bouturé à 73,23 %. En ce qui concerne la germination des graines, tous les procédés des traitements physiques, chimiques et mécaniques n’ont pas pu lever la dormance de ces graines. Leurs téguments, très durs, n’ont pas été scarifiés et cela n’a pas permis à l’eau et l’oxygène d’y entrer pour que les graines puissent germer. Seules, les graines ayant séjourné dans le tube digestif des animaux et qui ont été scarifiées par les enzymes intestinales et les sucs digestifs ont toutes germé. Il s’agit d’une endozoochorie. La connaissance des modalités de la propagation par les graines ou par les boutures peut apporter une importante contribution à la conservation de la diversité végétale, à la domestication et à la valorisation de cette plante. English title: Germinative capacity of seeds and aptitude for cutting of stems, tuberous roots of the species Ampelocissus multistriata (Baker) Planch This study is part of the context of valuing spontaneous plant species with nutritional and economic values in order to contribute to their domestication. This study consisted in testing the germination capacities of the seeds of Ampelocissus multistriata by physical, chemical and mechanical methods on the one hand and testing the aptitude for cuttings of leafy stems, leafy stems with tuberous roots on the other hand. For this, an area of 400 m2 has been defined within the Faculty of Exact and Applied Sciences of the University of N’Djamena for the two tests. In addition, the physical, chemical and mechanical processes were carried out at the University of Ouagadougou. The results obtained showed that the leafy stems did not cuttings. In contrast, the leafy stems with tuberous roots cut at 73.23%. Regarding seed germination, not all physical, chemical and mechanical treatment processes were able to break the dormancy of these seeds. Their very hard seed coats were not scarified, and this did not allow water and oxygen to enter them for the seeds to germinate. Only the seeds which have stayed in the digestive tract of animals and which have been scarified by intestinal enzymes and digestive juices have all germinated. It is an endozoochory. Knowing the methods of propagation by seeds or cuttings can make an important contribution to the conservation of plant diversity, to the domestication and enhancement of this plant.

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Section: Multiplication Par Voie Des Grainesunclassified

Capacité germinative des graines et aptitude au bouturage des tiges, des racines tubéreuses de l’espèce Ampelocissus multistriata(Baker) Planch.

Nguinambaye¹,

Nadjioroum²,

Brahim³

2021

Int. J. Bio. Chem. Sci

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“…Biomass production was highly progressive in all species from 30 to 90 DAP except in Z. glochidiata where the progress was quite slow, yielding 0.91 to 4.72 g/plant at 30 and 90 DAP respectively. This species is however, noted as highly palatable for livestock and provides excellent forage in pastures of Sudano-sahelian environments (Akpo et al, 2002;Mbaye et al, 2002).…”

Section: Characteristics Of Selected Indigenous Herbaceous Speciesmentioning

confidence: 99%

Potentials of Indigenous Herbaceous Species for the Improvement of Local Farming Systems in Sudano-Sahelian Zone of Cameroon

Asongwed-Awa¹,

Awono²,

Clautilde³

et al. 2014

JAES

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Constraints to productivity in the Sudano-sahelian zone of Cameroon are often linked with inadequate herbaceous cover. A study was carried out to evaluate the performance of ten indigenous herbaceous legumes with potentials for use in crop/livestock systems. Data collected on above and belowground performance at 30, 60, 90 and 120 days after planting (DAP) showed significant differences (p<0.0001) in all parameters. At 90DAP, plant height ranged from 21.25 cm in Zornia glochidiata to 86.9 cm in Cajanus cajan, highest biomass was 104.2g for Crotalaria spectabilis and 86.4g for Indigofera hirsuta, while spread/cover was best for Vigna radiata (145.7cm). Root length and density were highest in Crotalaria spectabilis (48.83cm and 18.77g). Nodule number was highest in Desmodium adreudens (83.36), followed by Zornia glochidiata (60.63) and Indigofera hirsuta (59.3). Nodule efficiency was generally high for all species, attaining up to 100% in Desmodium (big leaves), implying effective symbiosis between the local rhizobium and the different species. Crotalaria spectabilis, Indigofera hirsuta and Vigna radiata ranked highest in overall performance. The results have shown that some indigenous herbaceous species possess potentials that could be beneficial in enhancing biodiversity and environmental management goals in a sustainable farming system.

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“…Guerrouj et al, (2015) showed that alfalfa (Medicago arborea) seeds could lift integumentary inhibition with thermal shocks up to 100°C and 120°C. However, the pretreatment duration is dependent on the temperature and the seeds characteristics (Bouredja et al, 2011;Mbaye et al, 2002). Many studies have associated cold storage conditions (+4°C) with chemical pretreatments (Alouani & Bani-Aameur, 2014;Elmandouri et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Argan (Argania spinosa (L.) Skeels) Bazı Termal Şok Ön İşlemleri Altında Tohum Çimlenmesi

ALI

HACHEMI

Moumni

et al. 2022

Kastamonu Üniversitesi Orman Fakültesi Dergisi

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Aim of study:The objective of this study was to optimize the germination of A. spinosa seeds after different physical pretreatments by thermal shock to establish a simple, effective, and less expensive procedure.Area of study: The study was conducted in the laboratory on seeds from four regions of Morocco (Aoulouz, Essaouira, Sidi Bou Othmane, and Boulaouane).Material and methods: The seeds were dried and stored. Before the launching of the experimental protocol, they were dehulled and applied each their pre-treatment for the four provenances. The pretreatment used are the following. C: control without thermal shock, HC1: freezing, HC2: hot water, HC3: freezing + hot water.Main results: The results showed that the onset of germination of argan seeds subjected to pretreatment HC3 was reduced by 2 days on mean compared to seeds that were subjected to pretreatment (C). The application of the cold or hot pretreatment allowed us to reach up to 82% of the final percentage of germination. However, the combination of two pretreatments allowed us to reach up to 100% of the final germination percentage.Highlights: Freezing combined with hot water significantly improved the germination of A. spinosa seeds. This pretreatment could be recommended in the nursery for practitioners.

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Etude du comportement germinatif et essais de levée de l’inhibition tégumentaire des graines de <em>Zornia glochidiata</em> Reichb. ex DC., légumineuse fourragère

Cited by 7 publications

References 2 publications

Capacité germinative des graines et aptitude au bouturage des tiges, des racines tubéreuses de l’espèce Ampelocissus multistriata(Baker) Planch.

Capacité germinative des graines et aptitude au bouturage des tiges, des racines tubéreuses de l’espèce Ampelocissus multistriata(Baker) Planch.

Potentials of Indigenous Herbaceous Species for the Improvement of Local Farming Systems in Sudano-Sahelian Zone of Cameroon

Argan (Argania spinosa (L.) Skeels) Bazı Termal Şok Ön İşlemleri Altında Tohum Çimlenmesi

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