Disturbed Mineral Nutrition

Huber, D. M.

doi:10.1016/b978-0-12-356403-0.50015-4

Cited by 9 publications

(4 citation statements)

References 38 publications

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“…Nitrogen (N) is also involved in most of the plant’s physiological processes such as the production of amino acids, proteins, enzymes, hormones, phytoalexins and phenolic compounds among other cellular components (Huber and Watson, 1974; Huber and Thompson, 2007; Rice, 2007). Indeed, it promotes vigorous plant growth, delays maturity and affects cell size and wall thickness (Huber, 1978, 1980; Huber and Thompson, 2007). Potassium increases N uptake and promotes the synthesis of organic N compounds (Huber, 1978).…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, it promotes vigorous plant growth, delays maturity and affects cell size and wall thickness (Huber, 1978, 1980; Huber and Thompson, 2007). Potassium increases N uptake and promotes the synthesis of organic N compounds (Huber, 1978). Plants deficient in K are more susceptible to diseases than plants with adequate levels of this element in plant tissues (Huber and Arny, 1985).…”

Section: Introductionmentioning

confidence: 99%

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Rice Resistance to Brown Spot Mediated by Nitrogen and Potassium

Carvalho

Rodrigues

Silveira

et al. 2010

Journal of Phytopathology

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This study was undertaken to investigate the effects of both nitrogen (N) and potassium (K) rates on rice resistance to brown spot, caused by the fungus Bipolaris oryzae. Rice plants (cultivar ÔMetica 1Õ) were grown in soil corrected with 0, 25, 50, 75 and 100 mg of N ⁄ kg (as NH 4 NO 3 ) of soil as well as with 25, 50, 75, 125 and 150 mg of K ⁄ kg (as KCl) of soil. Thirtythree-day-old plants were inoculated with a suspension of Bipolaris oryzae conidia and the incubation period (IP), number of lesions (NL) per cm 2 of leaf area and disease severity was evaluated. Disease severity was scored at 24, 48, 72, 96, 120 and 144 h after inoculation and data were used to obtain the area under brown spot progress curve (AUBSPC). Soil plant analysis development (SPAD) index, plant dry weight and concentration of N and K in leaf tissues were also determined for both non-inoculated (NI) and inoculated (IN) plants. Concentration of N in leaf tissue increased as the N rates in the soil increased. Concentration of K in leaf tissue increased sharply as the K rates in the soil increased for both NI and IN plants. Concentration of K in leaf tissue was not affected by N rates. The IP increased as the N rates increased, but was somewhat less impacted by increasing K rates. The NL decreased as the N rates increased. The NL dramatically declined at the highest K rates. The AUBSPC dramatically declined as the N and K rates in the soil increased. SPAD index values increased as the N and K rates in the soil increased for both NI and IN plants. Plant dry weight increased as the N and K rates in the soil increased for both NI and IN plants. Results from this study suggest that combining high N and K rates may contribute to reducing the intensity of brown spot in rice while improving plant development.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rice Resistance to Brown Spot Mediated by Nitrogen and Potassium

Carvalho

Rodrigues

Silveira

et al. 2010

Journal of Phytopathology

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“…1). Some pathogens are known to cause the (uninoculated and inoculated) sugar content of sequentially older formation of metabolic sinks at infection sites (12). The increased leaves of herbicide-nontreated control plants.…”

Section: Resultsmentioning

confidence: 99%

Effect of Chlorophenoxy Herbicides on Soluble Sugars and on Pathogenesis byDrechslera sorokinianain Sequentially Senescent Leaves ofPoa pratensis

Madsen¹

1983

Phytopathology

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“…In agriculture, fertilization covers the nutritional requirements of the plants, providing quality to the production. Likewise, it can also be used to manage diseases (Huber, 1989;Fageria et al, 1997); however, a nutritional balance must be first carried out, to establish the resistance of the plant to different pathogens (Velasco, 1999), since nutritional excess or deficiencies have been proven to be able to modify susceptibility to diseases (Velasco, 1999;Huber, 1978). According to Giles (2011), macronutrient and micronutrient foliar sprays increased the vigor and productivity of citrus trees infected with HLB.…”

Section: Management With the Addition Of Nutrientsmentioning

confidence: 99%

Field identification of Huanglongbing (HLB) and its management alternatives

Martínez-Netro,

Martínez-Padrón,

Segura-Martínez

et al. 2024

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EObjective: The objective of this investigation is to identify huanglongbing (HLB) in the field and know their control altenatives. Design/methodology/approach: Was investigated the introduction of the phytopathogen Candidatus Liberibacter, symptoms and control of HLB. The generally observed symptoms of this disease are irregular yellowing in the leaves and reversed ripening on the fruit. Results: According to various authors, an integrated control of the disease must be carried out, such as pest control, production of seedlings in certified nurseries, a suitable nutrition management and working together with educational and research institutions. Limitations on study/implications: HLB or citrus greening is the most devastating disease of citrus trees which has caused millions of dollars in losses worldwide. However, although there are several research, there is still no established cure. Findings/conclusions: Research such as that carried out by geneticist Hailing Jin at the University of California Riverside can give hope for the cure or control of this disease, however, there are limitations to this product since it is not yet commercialized

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Disturbed Mineral Nutrition

Cited by 9 publications

References 38 publications

Rice Resistance to Brown Spot Mediated by Nitrogen and Potassium

Rice Resistance to Brown Spot Mediated by Nitrogen and Potassium

Effect of Chlorophenoxy Herbicides on Soluble Sugars and on Pathogenesis byDrechslera sorokinianain Sequentially Senescent Leaves ofPoa pratensis

Field identification of Huanglongbing (HLB) and its management alternatives

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