Variability of cowpea (vigna unguiculata l.) nodulation: what efficiency in use of the rhizobial symbiosis for plant growth under zaï cultivation in sub-saharan agro-ecosystem of burkina faso?

Zongo, Koulibi Fidèle; Traore, M. F.; Hien, Edmond; Blave, Didier; Dauphin, Cathy Clermont -; Drevon, ean-Jacques

doi:10.24327/ijcar.2017.2767.0100

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…These soils are sandy loam or loamy sand in upper horizons, and clay in depth. Also, the geomorphological position of these sites next to slope caused stagnant rainwater and waterlogging, and plants cowpea especially does not like large amounts of water [15,35]; In fact, plants subjected to severe and/or prolonged waterlogging have significantly declined their carbon assimilation ratedue to reactive oxygen species accumulation, resulting in reduced growth and productivity [36].…”

Section: Discussionmentioning

confidence: 99%

“…In each site, considered as Fisher block of the multilocation test, 5 plants per treatment were harvested at early flowering stage when 50% of plants had emitted their first flower, around 45 DAS according to method described by Zongo et al [15]. In fact, the roots were removed by clod with a cubic volume of soil of 20 cm each side.…”

Section: Data Collectionmentioning

confidence: 99%

“…The zaï holes are dug during the dry season. Before the sowing period, such organic matter as manure or compost, is supplied in varying amounts according to farmers, an adult handshake corresponding to about 300 g per hole [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Burkina Rock Phosphate Fertilization Increases Nodulation and Yield of Cowpea under Zaï Cultivation in Sahelian Agro-ecosystem of Burkina Faso

Zongo

Traoré

Guébré

et al. 2022

JEAI

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Cowpea occupies a considerable place in the nutritional and economic balance of the rural population of Burkina Faso. However, its cultivation is marked by yield instability linked to soil depletion of nutrients, especially N and P, and irregular rains. The objective of this study was to evaluate the effect of phosphorus fertilization with the rock phosphate named BurkinaP, on the spatial and temporal variability of cowpea nodulation and yield. A multilocation test was conducted in 12 and 16 farmers’fields in 2013 and 2014, respectively, in 3 villages of 3 provinces of the northern region of Burkina Faso. Two treatments were compared: zaï without (ZS) and zaï with BurkinaP (ZP). Overall, dry weights of nodules and shoots at flowering stage, and grain at harvest, were significantly increased by BurkinaP. It is concluded that in soils where low availability of P limits crop yields of cowpea especially in arid sud-saharan areas of West Africa, the input of BurkinaP can improve cowpea N2-fixation, and increase and stabilize cowpea yields.

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Section: Discussionmentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

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Burkina Rock Phosphate Fertilization Increases Nodulation and Yield of Cowpea under Zaï Cultivation in Sahelian Agro-ecosystem of Burkina Faso

Zongo

Traoré

Guébré

et al. 2022

JEAI

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Evaluación de la expresion genetica de Linalool en genotipos de cacao nacional altamente homocigoticos proveniente de las principales zonas cacaoteras tradicionales del Ecuador

Morillo

Buitron

Quiroz-Vera

2023

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Ecuador es reconocido a nivel internacional como el principal productor de cacao fino tipo Nacional o sabor “Arriba”. Con la secuenciación del genoma del cacao se identificaron genes que regulan la producción de monoterpenos, entre ellos el gen LIS que codifica a la enzima linalool sintasa, y cataliza la síntesis de linalool que caracteriza al cacao Nacional. El objetivo del presente estudio fue evaluar la expresión del gen LIS en un grupo de clones altamente homocigóticos de una colección de cacaos centenarios (CCNC) mediante qPCR. Para el estudio se obtuvieron almendras de mazorcas autofecundadas de siete accesiones CCNC y tres clones comerciales: EET103 (Tipo Nacional), y dos clones no Nacionales (CCN51 e ICS95-Trinitario). Para cada clon se muestrearon almendras a las 20 (M1) y 22 (M2) semanas de autofecundación y 22 semanas más 24 horas de microfermentación (M3), obteniéndose en total 30 muestras para el análisis (tres momentos por genotipo). El ARN para el analisis de expresión se extrajo a partir de un pool de 10 almendras por muestra. El ARN obtenido se purificó y normalizó para la amplificación de dos genes: el gen SAND usado como gen de referencia y el gen LIS. Para cada muestra se corrieron tres réplicas técnicas por gen. La cuantificación de la expresión relativa se realizó mediante el método ΔΔCt. A partir del análisis se determinó que en los tres momentos analizados (M1, M2 y M3), la expresión del gen LIS varió entre las accesiones CCNC respecto a los calibradores ICS95 y CCN51. El clon comercial EET-103 y accesiones CCNC mostraron una mayor expresión en M2 y M3; la accessión CCNC-210M, altamente homocigótica, registró la mayor expresión del gen LIS en M3 y el clon comercial EET-103 en M2. Los resultados obtenidos son útiles para el mejoramiento genético del cacao Nacional en INIAP y una apropiada utilización y valoración de los recursos genéticos locales. Palabras Claves: qPCR, gen LIS, ΔΔCt, sabor Arriba

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Variability of cowpea (vigna unguiculata l.) nodulation: what efficiency in use of the rhizobial symbiosis for plant growth under zaï cultivation in sub-saharan agro-ecosystem of burkina faso?

Cited by 2 publications

References 17 publications

Burkina Rock Phosphate Fertilization Increases Nodulation and Yield of Cowpea under Zaï Cultivation in Sahelian Agro-ecosystem of Burkina Faso

Burkina Rock Phosphate Fertilization Increases Nodulation and Yield of Cowpea under Zaï Cultivation in Sahelian Agro-ecosystem of Burkina Faso

Evaluación de la expresion genetica de Linalool en genotipos de cacao nacional altamente homocigoticos proveniente de las principales zonas cacaoteras tradicionales del Ecuador

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