Adaptations hydrique et photosynthétique du blé dur et du blé tendre au stress salin

Alem, Chakib; Labhilili, Mustapha; Brahmi, Kouider; Jlibene, M.; Nasrallah, Nasralhaq; Filali-Maltouf, Abdelkarim

doi:10.1016/s1631-0691(02)01531-7

Cited by 12 publications

(5 citation statements)

References 33 publications

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“…Hamza (1982) a signalé que, sous l'effet de la salinité, les plantes peuvent manifester des réactions, telles que la diminution de la surface foliaire, le faible allongement des organes aériens et leurs ramifications (raccourcissement des entrenoeuds). Chez le blé, la diminution de la surface foliaire est la principale stratégie développée pour atténuer les effets de la limitation de la disponibilité de l'eau dans les conditions de stress salin (Alem et al, 2002).…”

Section: A B C Dunclassified

Impact du NaCl sur la croissance et la nutrition de la variété de blé dur Massa cultivée en milieu hydroponique

Khaled

Ouarraqi

Zid

2007

Acta Botanica Gallica

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L'application d'un stress salin à des pieds de blé dur (Triticum durum Desf. «Massa ») cultivés en milieu hydroponique pendant 16 jours affecte la croissance et le statut nutritionnel des plants. Cet effet est marqué par un retard du tallage, une diminution de la biomasse sèche, une réduction de la surface foliaire, de la longueur des racines et l'apparition des perturbations des équilibres ioniques. À 50 mM, la biomasse sèche de la partie aérienne a été réduite de 59% et celle des racines de 52%. L'effet dépressif du NaCl s'est accompagné également de modifications nutritionnelles. Le sel induit une accumulation des ions potentiellement toxiques (Na + et Cl-) de façon plus prononcée dans les feuilles que dans les racines. En même temps, le NaCl perturbe plus l'absorption et le transport du potassium et du calcium dans les parties aériennes que dans les racines. À 25 mM, la teneur en K + au niveau des organes aériens ne représente plus que 70% par rapport aux témoins. De même, la teneur en calcium dans ces organes chute très fortement (5 fois que celle des témoins). Ces manifestations sont révélatrices d'une sensibilité particulière de la variété Massa à la salinité.

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Section: A B C Dunclassified

Impact du NaCl sur la croissance et la nutrition de la variété de blé dur Massa cultivée en milieu hydroponique

Khaled

Ouarraqi

Zid

2007

Acta Botanica Gallica

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“…To calculate the deposition at a given level (i) in the canopy, authors proposed a capture coefficient Ki depending on that level. In the literature, the measurement of the leaf area index could be direct, for example by using an optical planimeter (Alem et al, 2002), or indirectly by measuring the light energy incident under the leaves with a radiometer. This method is faster than the direct one, but it is not accurate and it requires specific hardware.…”

Section: Naturals Collectorsmentioning

confidence: 99%

Deposition of Pesticide to the Soil and Plant Retention During Crop Spraying: The Art State

Allagui¹,

Bahrouni²,

M’sadak³

2018

JAS

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Environment pollution related to pesticides has been confirmed by the scientific community for a long time, but the available information on the impact of this phenomenon on human health and the ecosystem are still insufficient. Contamination of the environment can occur through various pathways, ground deposits during the application of pesticides to crops are one of those pathways. The retention rate of sprayed droplets is an important factor both for the efficacy of the phytosanitary treatment and the quantities of lost pesticides on the ground. This paper presents an overview of factors that affect spray droplet behavior, involved process in sprayed drop fate and the mainly techniques for measuring pesticide deposits to the ground and plant retention. We present studies that have focused on pesticide retention and soil deposition during crop spraying in relation to sprayer equipment, used formulation and climatic factors. Plant retention and pesticide deposits during spray is a complex problem depending mainly on physical sprayer parameters, climatic conditions, spray properties and chemical formulation. By illustrating the large variety of analytical methods during the recently years, it aims to explain that it is always possible to assess the impact of pesticides in all compartments of the environment. The use of concerned molecules and natural collectors is the safest to evaluate the real situation, but the use of tracers and artificial targets is both very reported and safety for the environment.

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“…The climate change is a factor responsible for the decline in production in all crops (Ram and Kaur, 2020). Water is the major factor limiting wheat crop yield in semi-arid area of Algeria (Chennafi et al, 2006;Alem et al, 2002). In high plateau regions, the agriculture is mostly rainfed (Sebbane et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Tillage Operations on Soil Water Storage, Water Use Efficiency and Productivity of Durum Wheat (Triticum durum Desf.) in Semi-arid Region

Elabbadi,

Benniou,

Louahdi

et al. 2024

IJARe

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Background: The low amount of rainfall and high loss of soil water through evaporation during spring; there are the dominant factors affecting crop production in semi-arid region. Methods: A field study was conducted during two cropping seasons of durum wheat (Triticum durum Desf.) to compare the effect three tillage operations viz., no-tillage, minimum tillage and conventional tillage. Result: There was variation in precipitation between the experimental years (dry and rainfall seasons). All the parameters registered significant differences between the cropping seasons. Soil water storage to a depth of 0.4 m was higher under no tillage (NT) and minimum tillage (MT) in the first year as compared to conventional tillage (CT) in the first year. During the second year, the soil water content was same under different tillages. The thousand-kernel weight registered significant differences among the tillage operations viz., no till (36.09-50.36 g), minimum tillage (30.93-46.81 g) and conventional tillage (28.31-45.05 g) in the two seasons, respectively. Under no till treatment water use efficiency was high from grain production. The no till also recorded high grain yield of 1.07 t/ha and 4.7 t/ha during first and second year, respectively. The lack of rain was more detrimental in conventional tillage system as compared to no till and minimum tillage.

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Adaptations hydrique et photosynthétique du blé dur et du blé tendre au stress salin

Cited by 12 publications

References 33 publications

Impact du NaCl sur la croissance et la nutrition de la variété de blé dur Massa cultivée en milieu hydroponique

Impact du NaCl sur la croissance et la nutrition de la variété de blé dur Massa cultivée en milieu hydroponique

Deposition of Pesticide to the Soil and Plant Retention During Crop Spraying: The Art State

Effect of Different Tillage Operations on Soil Water Storage, Water Use Efficiency and Productivity of Durum Wheat (Triticum durum Desf.) in Semi-arid Region

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