Influence of potassium fertilization and foliar application of zinc and phosphorus on growth, yield components, yield and fiber properties of Egyptian cotton (Gossypium barbadense L.)

Sawan, Zakaria M.; Mahmoud, Mahmoud H.; El-Guibali, Amal H.

doi:10.1093/jpe/rtn021

Cited by 67 publications

(51 citation statements)

References 26 publications

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“…Potassium (K) is an essential macronutrient for normal plant growth. In a limited amount, it limits accumulation of crop/pasture biomass resulting tin stunting of crop/pasture as well as low yields [109][110][111]. In this study, potassium exhibited inverse relationship with forage quantity in all the land cover types ( Table 7).…”

Section: Effect Of Soil Properties On Forage Quantitymentioning

confidence: 74%

Land Cover and Soil Properties Influence on Forage Quantity in a Semiarid Region in East Africa

Egeru

Wasonga

Gabiri

et al. 2019

Applied and Environmental Soil Science

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Soil properties contribute to the widely recognised resilience of semiarid areas. However, limited attention has been given in providing a scientific basis of how semiarid soil properties in the various land covers occur and how they influence forage quantity.is study investigated the influence of different soil properties and land cover types on herbaceous biomass quantity in the Karamoja subregion of Uganda. A completely randomized design in three land cover types (thickets and shrublands, woodlands, and savannah grasslands) was implemented. In each vegetation type, 50 × 40 m plots were demarcated with nested plots to facilitate clipping of the herbaceous layer. Composite soil samples at two depths (0-15 cm, 15-30 cm) were obtained from each plot. e results showed that soil properties varied across land cover types. Soil pH ranged between 6.9 and 8.1 and SOM, N, P, and K were generally low in all land cover types. Soil hydraulic properties revealed the existence of rapid to very rapid permeability in thickets/shrublands, grasslands, and woodlands. Percent change in soil properties (0-15 cm to 15-30 cm) was highest in P, Ca, Mg, Na, and SOM. In the grasslands, P positively (p ≤ 0.01) influenced herbaceous biomass, whereas pH, K, Na, % sand, and % clay, N, and SOM had a negative relationship with herbaceous biomass (p ≤ 0.05). Herbaceous biomass in the thickets/shrublands was negatively influenced by P, Ca, and Mg and % clay and positively by N and % silt (p ≤ 0.05). Only N and SOM were significant determinants of herbaceous biomass in the woodlands (p ≤ 0.05). e low level of soil nutrients observed in this study reveals the fragility of semiarid soils, indicating the need for sustainable landscape management.

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Section: Effect Of Soil Properties On Forage Quantitymentioning

confidence: 74%

Land Cover and Soil Properties Influence on Forage Quantity in a Semiarid Region in East Africa

Egeru

Wasonga

Gabiri

et al. 2019

Applied and Environmental Soil Science

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“…This is one of the most efficient ways of supplying essential nutrients to a growing crop. Newly released, high yielding transgenic cotton cultivars are said to have a higher nutrient demand during the boll development period (between flowering and maturity) due to their higher boll retention rate and larger boll load than conventional cultivars (Sawan et al, 2008).…”

Section: Article Infomentioning

confidence: 99%

Evaluation of Hirsutum Cotton Varieties under Various Fertility Levels and Plant Geometries

Meena¹,

Meena²,

Kumhar³

2017

Int.J.Curr.Microbiol.App.Sci

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“…; Sawan et al . ; Heidarian et al . ); however, excess soil Zn is toxic to plants (Sayen & Guillon ).…”

Section: Introductionmentioning

confidence: 96%

“…High levels of Cu can cause damage to plants by inhibiting the synthesis of proteins, carbohydrates and chlorophyll, along with nutrient uptake (Xing et al 2010). Similarly, Zn is a nutrient that is essential to plant growth, playing a major role in the regulation of enzymes, chlorophyll synthesis, fertilisation, seed germination and the biosynthesis of auxin (Gobarah et al 2006;Sawan et al 2008;Heidarian et al 2011); however, excess soil Zn is toxic to plants (Sayen & Guillon 2014). Change et al (1992) reported that the presence of more than 200 mgÁkg À1 Zn in the soil has toxic effects on most plants.…”

Section: Introductionmentioning

confidence: 99%

Enterobacter asburiae KE17 association regulates physiological changes and mitigates the toxic effects of heavy metals in soybean

et al. 2015

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This study aimed to elucidate the role played by Enterobacter asburiae KE17 in the growth and metabolism of soybeans during copper (100 μm Cu) and zinc (100 μm Zn) toxicity. When compared to controls, plants grown under Cu and Zn stress exhibited significantly lower growth rates, but inoculation with E. asburiae KE17 increased growth rates of stressed plants. The concentrations of plant hormones (abscisic acid and salicylic acid) and rates of lipid peroxidation were higher in plants under heavy metal stress, while total chlorophyll, carotenoid content and total polyphenol concentration were lower. While the bacterial treatment reduced the abscisic acid and salicylic acid content and lipid peroxidation rate of Cu-stressed plants, it also increased the concentration of photosynthetic pigments and total polyphenol. Moreover, the heavy metals induced increased accumulation of free amino acids such as aspartic acid, threonine, serine, glycine, alanine, leucine, isoleucine, tyrosine, proline and gamma-aminobutyric acid, while E. asburiae KE17 significantly reduced concentrations of free amino acids in metal-affected plants. Co-treatment with E. asburiae KE17 regulated nutrient uptake by enhancing nitrogen content and inhibiting Cu and Zn accumulation in soybean plants. The results of this study suggest that E. asburiae KE17 mitigates the effects of Cu and Zn stress by reprogramming plant metabolic processes.

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Influence of potassium fertilization and foliar application of zinc and phosphorus on growth, yield components, yield and fiber properties of Egyptian cotton (Gossypium barbadense L.)

Cited by 67 publications

References 26 publications

Land Cover and Soil Properties Influence on Forage Quantity in a Semiarid Region in East Africa

Land Cover and Soil Properties Influence on Forage Quantity in a Semiarid Region in East Africa

Evaluation of Hirsutum Cotton Varieties under Various Fertility Levels and Plant Geometries

Enterobacter asburiae KE17 association regulates physiological changes and mitigates the toxic effects of heavy metals in soybean

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