Potential agronomic and physiological traits of Spanish groundnut varieties (Arachis hypogaea L.) as selection criteria under end-of-cycle drought conditions

Agronomie ◽  
2004 ◽  
Vol 24 (2) ◽  
pp. 101-111 ◽  
Author(s):  
Dani�le Clavel ◽  
Beno�t Sarr ◽  
Edouard Marone ◽  
Rodomiro Ortiz
Keyword(s):  
Arachis Hypogaea ◽  
Selection Criteria ◽  
Physiological Traits ◽  
Arachis Hypogaea L ◽  
Drought Conditions

scholarly journals Changes in plant growth, leaf relative water content and physiological traits in response to salt stress in peanut (Arachis hypogaea L.) varieties

2021 ◽  
Vol 49 (1) ◽  
pp. 12049
Author(s):  
Tekam L. MEGUEKAM ◽  
Dany P. MOUALEU ◽  
Victor D. TAFFOUO ◽  
Hartmut STÜTZEL
Keyword(s):  
Salt Stress ◽  
Plant Growth ◽  
Water Content ◽  
Arachis Hypogaea ◽  
Relative Water Content ◽  
Physiological Traits ◽  
Salt Tolerant ◽  
Arachis Hypogaea L ◽  
Relative Water ◽  
Leaf Relative Water Content

Salinity is the main environmental factor accountable for decreasing crop productivity worldwide. The effects of NaCl salinity on plant growth (leaf relative water content (RWC), leaf dry weight (LDW), shoot length (SL), number of leaves (NL), number of branches (NB) and total leaf area (TLA) and physiological characteristics (stomatal conductance (gs), transpiration rate (TR), net photosynthetic (Pn), yield of photosystem II (ΦPsII) and the intercellular CO2 concentration (CO2int) in peanut (Arachis hypogaea L.) varieties (‘Vanda’, ‘P244601’ and ‘Pl184948’, widely used in Cameroon, Tanzania and Ghana, respectively, were investigated under hydroponic condition. Plants were subjected to four levels of NaCl (0, 40, 80 and 120 mM) at early seedling growth stage of plant development. Application of NaCl treatment led to a significant decrease in LDW, SL, NL, TLA, Pn, gs, TR and CO2int concentration of ‘Vanda’ and ‘P244601’ compared to untreated plants while the plant growth inhibition was notably noted at 120 mM NaCl in ‘P1184948’ for LDW, SL and NB. The highest depressive effect was detected in gs of salt-sensitive ‘Vanda’ while the lowest were recorded in gs of salt-tolerant ‘P1184948’ at high salinity level. Enhanced NaCl concentrations led to a significant increase in ΦPSII of ‘P1184948’ compared to ‘Vanda’, ‘P244601’ and untreated plants. Leaf CHL content was significantly increased in moderately-tolerant ‘‘P244601’ and salt-tolerant ‘P1184948’ at 80 mM NaCl compared to salt sensitive ‘Vanda’ and untreated plants. The depressive effect of salt on RWC was recorded at 120 mM NaCl in peanut leaves of all varieties. Under salt stress ‘P1184948’ was observed to have relatively higher tolerance on average of all growth and physiological traits than ‘Vanda’ and P244601’ suggesting that it could be grown in salt-affected soils.

Ameliorative roles of biochar-based fertilizer on morpho-physiological traits, nutrient uptake and yield in peanut (Arachis hypogaea L.) under water stress

2021 ◽  
Vol 257 ◽  
pp. 107129
Author(s):  
Junlin Zheng ◽  
Shujun Wang ◽  
Ruimin Wang ◽  
Yinglong Chen ◽  
Kadambot H.M. Siddique ◽  
...  
Keyword(s):  
Water Stress ◽  
Nutrient Uptake ◽  
Arachis Hypogaea ◽  
Physiological Traits ◽  
Arachis Hypogaea L

scholarly journals Modeling groundnut (Arachis hypogaea L.) performance under drought conditions

2018 ◽  
Vol 33 (1) ◽  
pp. 125-144 ◽  
Author(s):  
Richard Oteng-Frimpong ◽  
Yussif Baba Kassim ◽  
Rukiya Danful ◽  
Richard Akromah ◽  
Alex Wireko-Kena ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Arachis Hypogaea L ◽  
Drought Conditions

Yield and Quality Response of Florunner Peanut to Applied Drought at Several Growth Stages1

1985 ◽  
Vol 12 (2) ◽  
pp. 64-70 ◽  
Author(s):  
J. R Stansell ◽  
J. E Pallas
Keyword(s):  
Arachis Hypogaea ◽  
Growth Stages ◽  
Yield And Quality ◽  
Arachis Hypogaea L ◽  
Drought Conditions ◽  
Quality Response ◽  
Covering Groups ◽  
Drainage Lysimeter

Abstract Florunner peanuts (Arachis hypogaea L.) were subjected to 35 and 70-day drought periods during several growth stages (days after planting). Drought conditions were maintained by the use of automatic rainout shelters covering groups of drainage lysimeter plots. Detrimental effects of 35-day drought periods were greatest from 71–105 days after planting, least for 106–140, and intermediate for 36–70 days after planting. Seventy days of drought extending from 36 through 105 days after planting effectively eliminated pod production, whereas 70 days of drought during the period of 71 through 140 days after planting reduced but did not completely eliminate the production of marketable pods.

Evaluation of Preharvest Aflatoxin Contamination in Several Potentially Resistant Peanut Genotypes1

1995 ◽  
Vol 22 (1) ◽  
pp. 29-32 ◽  
Author(s):  
W. F. Anderson ◽  
C. C. Holbrook ◽  
D. M. Wilson ◽  
M. E. Matheron
Keyword(s):  
Drought Stress ◽  
Arachis Hypogaea ◽  
Block Design ◽  
Aflatoxin Contamination ◽  
Sources Of Resistance ◽  
Arachis Hypogaea L ◽  
Randomized Complete Block Design ◽  
Potential Sources ◽  
Drought Conditions ◽  
Field Plots

Abstract Peanut (Arachis hypogaea L.) is susceptible to aflatoxin contamination when pods are developing under drought conditions in the field. The development of cultivars which resist preharvest aflatoxin contamination would be advantageous, but has been limited by the lack of genes for resistance. Several genotypes have been suggested as potential sources of resistance. Conflicting results have been reported on how useful this resistance may be, and some of these sources have never been specifically examined for resistance to preharvest aflatoxin contamination. The objective of this study was to evaluate aflatoxin contamination under drought stressed conditions in potentially resistant peanut genotypes. Twelve peanut genotypes were planted in a randomized complete-block design in field plots in Yuma, AZ in 1991 and 1992. Ten of these genotypes were also planted in a randomized complete-block design in field plots in Tifton, GA in 1992. All plots were inoculated with Aspergillus inoculum and were subjected to 40 to 50 d of drought stress immediately prior to harvest. After harvest, aflatoxin contamination (ppb) of seed was measured. None of the genotypes included in this study were more resistant (P≤0.05) to preharvest aflatoxin contamination than Florunner. The results of this study indicate that it would be desirable to identify higher levels of resistance to preharvest aflatoxin contamination in peanut.

Heritability of, and genotypic correlations between, aflatoxin traits and physiological traits for drought tolerance under end of season drought in peanut (Arachis hypogaea L.)

2010 ◽  
Vol 118 (2) ◽  
pp. 169-176 ◽  
Author(s):  
Teerayoot Girdthai ◽  
Sanun Jogloy ◽  
Nimitr Vorasoot ◽  
Chutipong Akkasaeng ◽  
Sopone Wongkaew ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Arachis Hypogaea ◽  
Physiological Traits ◽  
Arachis Hypogaea L ◽  
Genotypic Correlations

GERMINACIÓN DE SEMILLAS DE CACAHUATE (Arachis hypogaea L.) UTILIZANDO DIFERENTES DOSIS DE GIBERELINA.

2018 ◽  
Vol 11 (11) ◽  
Author(s):  
S.A. García Muñoz
Keyword(s):  
Arachis Hypogaea ◽  
Arachis Hypogaea L

Objetivo: Evaluar la germinación de cacahuate (Arachis hypogaea L.) mediante el uso de diferentes dosis de ácido giberélico (GA3). Diseño/metodología/aproximación: Se empleó un diseño completamente al azar. Se utilizaron tres tratamientos con 20 repeticiones. Tratamiento 1: 0.05gr/L de ácido giberélico (GA3), Tratamiento 2: 0.10gr/L de ácido giberélico (GA3), Tratamiento 3: 0.15gr/L de ácido giberélico (GA3) y Tratamiento 0: Testigo. Se utilizaron semillas de cacahuate de la variedad Virginia. Los parámetros a evaluar fueron, la altura de plántula, número de hojas, medida de raíz y biomasa.  Las medias fueron comparadas por la prueba de Tukey a un nivel del 5% de confianza. Resultados: Los tratamientos indicaron que el Tratamiento 0 (Testigo) obtuvo un porcentaje de germinación de 85%, siendo mayor que el tratamiento 3 (0.15gr/L de GA3) con un 75% de germinación, sin embargo, el tratamiento 1 (0.05gr/L de GA3) y 2 (0.10gr/L de GA3) presentaron una mejor respuesta al obtener un 95% de germinación cada uno. Limitaciones del estudio/implicaciones: El tratamiento 3 causa efectos negativos en la germinación de la planta. Hallazgos/conclusiones: Es necesario dar seguimiento a la investigación para un mejor control del ambiente y ampliar las dosis de GA3, así como aumentar la velocidad de germinación aplicando 0.15gr/L de GA3.

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