Potassium uptake efficiency of two pear cultivars and leaf concentration at deficiency symptoms appears

Dbara, Soumaya; Melaouhi, Amira; Mars, Messaoud; Mimoun, M. Ben

doi:10.1080/01904167.2019.1628977

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…The K + concentration in soil solution and plant tissue for optimum plant growth varies greatly (Havlin et al 2006). It is not only controlled by plant genetics (Philp et al 2021;Dbara et al 2019) and also affected by soil properties and K fertilizer application. Under this experimental condition, K absorption, K recommendation, and critical K concentrations of "Fire Dragon" cultivar were different in medium-K and low-K soils, indicating that K management should be performed according to soil K levels for Festuca arundinacea cultivation, and the differences among varieties should also be considered.…”

Section: Discussionmentioning

confidence: 99%

Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Huai

Zhang

et al. 2022

J Soil Sci Plant Nutr

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This study sought to clarify the effects of potassium (K) fertilizer application on the growth and K requirement of Festuca arundinacea and determine the appropriate K fertilizer application rate for its normal growth. A pot experiment was conducted to test the plant growth and K uptake of Festuca arundinacea response to different K fertilizer rates (0, 100, 200, 300, and 400 mg K2O kg−1) in two K levels (medium K and low K) of soils. Potassium fertilizer application and soil significantly affected plant growth, K uptake and K concentration in the shoot, and K uptake in the root. Low-K soil and without K fertilizer application increased the root-shoot ratio. Increasing K fertilizer application enhanced K distribution in the shoot. The recommended optimum K fertilizer rate to obtain 80% of the maximum shoot biomass in medium-K and low-K soils was 88.9 mg K2O kg−1 and 71.1 mg K2O kg−1, and the corresponding critical K concentration of shoot was 17.9 g kg−1 and 14.4 g kg−1. Appropriate K fertilizer application could promote plant growth and K uptake. An optimized K fertilizer management strategy and K diagnostic concentration should be carried out according to soil K levels during the establishment phase of Festuca arundinacea.

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Section: Discussionmentioning

confidence: 99%

Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Huai

Zhang

et al. 2022

J Soil Sci Plant Nutr

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“…The fact that leaf Cl concentrations are influenced by rootstocks has been reported for many crops, among them grapevine [ 39 ], pomegranate [ 40 ], citrus [ 41 ], and avocado [ 18 ]. This phenomenon is likely to stem from divergent levels of root Cl absorption and exclusion, as well as transport mechanisms [ 42 , 43 , 44 ]. In our experiment, the rootstocks that exhibited the highest leaf Cl concentration (VC 840 and Dusa, Figure 1 ) were both of a Mexican genetic background, which is characterized by this trait [ 17 , 45 , 46 ].…”

Section: Discussionmentioning

confidence: 99%

Rootstock-Dependent Response of Hass Avocado to Salt Stress

Lazare

Cohen

Goldshtein

et al. 2021

Plants

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Salt stress is a major limiting factor in avocado (Persea americana) cultivation, exacerbated by global trends towards scarcity of high-quality water for irrigation. Israeli avocado orchards have been irrigated with relatively high-salinity recycled municipal wastewater for over three decades, over which time rootstocks were selected for salt-tolerance. This study’s objective was to evaluate the physiological salt response of avocado as a function of the rootstock. We irrigated fruit-bearing ‘Hass’ trees grafted on 20 different local and introduced rootstocks with water high in salts (electrical conductivity of 1.4–1.5 dS/m). The selected rootstocks represent a wide range of genetic backgrounds, propagation methods, and horticultural characteristics. We investigated tree physiology and development during two years of salt exposure by measuring Cl and Na leaf concentrations, leaf osmolality, visible damages, trunk circumference, LAI, CO2 assimilation, stomatal conductance, spectral reflectance, stem water potential, trichomes density, and yield. We found a significant effect of the rootstocks on stress indicators, vegetative and reproductive development, leaf morphogenesis and photosynthesis rates. The most salt-sensitive rootstocks were VC 840, Dusa, and VC 802, while the least sensitive were VC 159, VC 140, and VC 152. We conclude that the rootstock strongly influences avocado tree response to salinity exposure in terms of physiology, anatomy, and development.

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Physiological and morphological responses to mineral (N, Mg, Mn, Zn) stress in pear (Pyrus communis L.) cultivars “Meski Ahrech” and “Alexandrine”

Melaouhi

Dbara

Mars

et al. 2022

Journal of Plant Nutrition

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Potassium uptake efficiency of two pear cultivars and leaf concentration at deficiency symptoms appears

Cited by 3 publications

References 11 publications

Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Effects of Potassium Fertilizer Application on Festuca arundinacea I: Plant Growth and Potassium Requirement

Rootstock-Dependent Response of Hass Avocado to Salt Stress

Physiological and morphological responses to mineral (N, Mg, Mn, Zn) stress in pear (Pyrus communis L.) cultivars “Meski Ahrech” and “Alexandrine”

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