The influence of stockplant fertilization on tissue concentrations of nitrogen, carbohydrates and amino acids and on the rooting of leafy stem cuttings of Cola anomala K. Schum (Malvaceae)

Kanmegne, Gabriel; Mbouobda, H. D.; Fotso,; Mbakop, Christelle Nya; Omokolo, Dénis Ndoumou

doi:10.1007/s11056-016-9553-5

Cited by 8 publications

(10 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The short (Mweru) and medium (Kampolombo) duration varieties achieving maximum shoot biomasses at higher fertigation treatments than the long‐duration variety (Nalumino) was perhaps due to their internal demand for nutrients to complete their growth cycle within the shortest period. El‐Hawaz et al () and Kanmegne et al () indicated that nutrition accelerates growth, thus, could be used to shorten the growth cycle. Certainly this was the case in the three varieties but more pronounced in Mweru.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Nutrient use efficiency and harvest index of cassava decline as fertigation solution concentration increases

Omondi

Lazarovitch

Rachmilevitch

et al. 2018

J. Plant Nutr. Soil Sci.

View full text Add to dashboard Cite

Response of cassava (Manihot esculenta Crantz) to fertigation as a form of nutrient delivery is unknown. The objectives of this study were to establish a balanced nutrition and to enhance agronomic nutrient use efficiency (ANUE) of cassava under fertigation. This study was conducted in the greenhouse and in the field. In both, the results showed a similar trend. There were six fertigation concentrations and three cassava varieties, selected for their duration of growth in the field. Shoot biomass of the long‐duration variety (Nalumino) was the highest, even though its dry root yield was the lowest (10.18 t ha−1) among the varieties. In contrast, the medium‐duration variety (Kampolombo) produced the highest dry root yield (20.34 t ha−1) and a lower shoot biomass. The highest root yield of the shortest‐duration variety (Mweru) was achieved at 200 mg N, 30 mg P, and 200 mg K L−1 (155.0, 23.3, 155.0 kg N, P, K ha−1), while Nalumino's was at 70 mg N, 7 mg P, and 70 mg K L−1 (54.3, 5.4, 54.3 kg N, P, K ha−1). ANUE and harvest index of these varieties declined as the fertigation concentrations increased. Additionally, the correlation between concentrations of N in the youngest fully expanded leaf (YFEL) blades and dry root yields was the lowest (R2 = 0.5488), whereas P and K were R2 = 0.7237 and R2 = 0.8006, respectively, an indication that nutrient concentrations in the leaf, especially N, cannot easily be used to predict root yield. When cassava reaches nutrient sufficiency, mainly N, its accumulation in the leaf continues without significant increase in the root yield.

show abstract

Section: Discussionmentioning

confidence: 99%

“…and Kanmegne et al (2017) indicated that nutrition accelerates growth, thus, could be used to shorten the growth cycle. Certainly this was the case in the three varieties but more pronounced in Mweru.…”

Section: (B)mentioning

confidence: 99%

Nutrient use efficiency and harvest index of cassava decline as fertigation solution concentration increases

Omondi

Lazarovitch

Rachmilevitch

et al. 2018

J. Plant Nutr. Soil Sci.

View full text Add to dashboard Cite

show abstract

“…Los resultados demuestran la importancia de tener una planta donadora en buena condición nutricional para producir estacas de calidad. Y son acordes con lo señalado por otros autores, en el sentido que la fertilización adecuada de la planta donadora influye en el nivel de carbohidratos, auxinas y otros compuestos en los tejidos de las estacas, los cuales la mantienen viva mientras inicia el proceso de rizogénesis (Kanmegne et al, 2017).…”

Section: Hondurensisunclassified

“…En las estacas no tratadas, es probable que los carbohidratos presentes no cubrieron la demanda de la planta para la generación de nuevas raíces, aunado a que la fotosíntesis en ellas no genera la suficiente cantidad de carbohidratos para los procesos involucrados en la rizogénesis de la estaca (Kanmegne et al, 2017).…”

Section: Hondurensisunclassified

Manejo nutrimental de árboles de pino híbrido y uso de ácido indolbutírico para su clonación por estacas

Ramírez

Casas

López

et al. 2022

RMCF

View full text Add to dashboard Cite

Las estacas de árboles jóvenes de pino presentan bajas tasas de enraizamiento, lo que dificulta su clonación; sin embargo, la fertilización y podas programadas promueven la producción de estacas juveniles. La aplicación exógena de auxinas favorece la formación de raíces. En este trabajo se analiza el efecto del manejo nutrimental de los árboles donadores, de cuatro años de edad, del híbrido Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis y del ácido indolbutírico (AIB) en el enraizamiento de estacas. En un diseño de bloques completos con arreglo factorial, se evaluó la aplicación de cinco nutrimentos o mezclas de ellos a los árboles. Los tratamientos y dosis por árbol fueron: testigo, nitrógeno (80 g), fósforo (20 g), magnesio (10 g) y nitrógeno/fósforo (80/20 g). Además, se probaron dos dosis de AIB (0 y 3 000 ppm) para el enraizamiento. La supervivencia de estacas, el porcentaje de enraizamiento y la morfología de raíces, se registraron después de 90 días. El manejo nutrimental y el AIB mejoraron tanto la morfología de raíces primarias y secundarias, como el enraizamiento de estacas en más de 30 %, respecto a sus testigos. Lo anterior permitió una mayor supervivencia de estacas durante la formación de raíces. Con el tratamiento de N+P se obtuvo la mejor respuesta, superior a 60 %, en todas las variables evaluadas. La clonación de árboles jóvenes del híbrido, por el enraizamiento de estacas, es posible con el apoyo de un programa de fertilización, aplicado como parte del manejo del árbol donador y el uso de AIB.

show abstract

“…In agriculture, long-term N fertilization in crops has enhanced yields [122,123] and increased total protein and amino acid concentrations in food crops [124]. Targeted analyses based on colorimetric and/or HPLC-UV detection have shown that increases in soil N availability, such as those caused by N deposition and the application of N fertilizer, have strong positive impacts on amino acid concentrations in crops [125][126][127][128][129][130][131][132][133]. Ecometabolomic analyses allow quantification of changes in specific groups of amino acids and their precursor metabolites in response to elevated N loads.…”

Section: Nitrogen Eutrophicationmentioning

confidence: 99%

Ecometabolomics for a Better Understanding of Plant Responses and Acclimation to Abiotic Factors Linked to Global Change

et al. 2020

View full text Add to dashboard Cite

The number of ecometabolomic studies, which use metabolomic analyses to disentangle organisms’ metabolic responses and acclimation to a changing environment, has grown exponentially in recent years. Here, we review the results and conclusions of ecometabolomic studies on the impacts of four main drivers of global change (increasing frequencies of drought episodes, heat stress, increasing atmospheric carbon dioxide (CO2) concentrations and increasing nitrogen (N) loads) on plant metabolism. Ecometabolomic studies of drought effects confirmed findings of previous target studies, in which most changes in metabolism are characterized by increased concentrations of soluble sugars and carbohydrate derivatives and frequently also by elevated concentrations of free amino acids. Secondary metabolites, especially flavonoids and terpenes, also commonly exhibited increased concentrations when drought intensified. Under heat and increasing N loads, soluble amino acids derived from glutamate and glutamine were the most responsive metabolites. Foliar metabolic responses to elevated atmospheric CO2 concentrations were dominated by greater production of monosaccharides and associated synthesis of secondary metabolites, such as terpenes, rather than secondary metabolites synthesized along longer sugar pathways involving N-rich precursor molecules, such as those formed from cyclic amino acids and along the shikimate pathway. We suggest that breeding for crop genotypes tolerant to drought and heat stress should be based on their capacity to increase the concentrations of C-rich compounds more than the concentrations of smaller N-rich molecules, such as amino acids. This could facilitate rapid and efficient stress response by reducing protein catabolism without compromising enzymatic capacity or increasing the requirement for re-transcription and de novo biosynthesis of proteins.

show abstract

The influence of stockplant fertilization on tissue concentrations of nitrogen, carbohydrates and amino acids and on the rooting of leafy stem cuttings of Cola anomala K. Schum (Malvaceae)

Cited by 8 publications

References 45 publications

Nutrient use efficiency and harvest index of cassava decline as fertigation solution concentration increases

Nutrient use efficiency and harvest index of cassava decline as fertigation solution concentration increases

Manejo nutrimental de árboles de pino híbrido y uso de ácido indolbutírico para su clonación por estacas

Ecometabolomics for a Better Understanding of Plant Responses and Acclimation to Abiotic Factors Linked to Global Change

Contact Info

Product

Resources

About