Potassium and zinc co-fertilization provide new insights to improve maize (Zea mays L.) physiology and productivity

Raza, Hafiz Muhammad Ali; Bashir, Muhammad Amjad; Rehim, Abdur; Jan, Muhammad; Raza, Qurat-Ul-Ain; Berlyn, Graeme P.

doi:10.30848/pjb2021-6(28)

Cited by 10 publications

(16 citation statements)

References 20 publications

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“…Furthermore, there was a dose-dependent decrease in RWC and MSI due to salt stress and the addition of low doses of Zn significantly improved these parameters in stressed plants. In previous studies, Zn also improved RWC and MSI when applied to stress plants like Solanum melongena L., Zea mays L., Oryza sativa L. and Abelmoschus esculentus (Tufail et al, 2018;Nadeem et al, 2020;Ali et al, 2021;Raza et al, 2021;Semida et al, 2021b). An increase in growth and pigments by foliar application of Zn may be attributed to the crucial role of zinc on the biological and metabolism activity of plants.…”

Section: Discussionmentioning

confidence: 80%

Exogenous zinc mitigates salinity stress by stimulating proline metabolism in proso millet (Panicum miliaceum L.)

et al. 2023

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Salinity is one of the most concerning ecological restrictions influencing plant growth, which poses a devastating threat to global agriculture. Surplus quantities of ROS generated under stress conditions have negative effects on plants’ growth and survival by damaging cellular components, including nucleic acids, lipids, proteins and carbohydrates. However, low levels of ROS are also necessary because of their role as signalling molecules in various development-related pathways. Plants possess sophisticated antioxidant systems for scavenging as well as regulating ROS levels to protect cells from damage. Proline is one such crucial non-enzymatic osmolyte of antioxidant machinery that functions in the reduction of stress. There has been extensive research on improving the tolerance, effectiveness, and protection of plants against stress, and to date, various substances have been used to mitigate the adverse effects of salt. In the present study Zinc (Zn) was applied to elucidate its effect on proline metabolism and stress-responsive mechanisms in proso millet. The results of our study indicate the negative impact on growth and development with increasing treatments of NaCl. However, the low doses of exogenous Zn proved beneficial in mitigating the effects of NaCl by improving morphological and biochemical features. In salt-treated plants, the low doses of Zn (1 mg/L, 2 mg/L) rescued the negative impact of salt (150mM) as evidenced by increase in shoot length (SL) by 7.26% and 25.5%, root length (RL) by 21.84% and 39.07% and membrane stability index (MSI) by 132.57% and 151.58% respectively.The proline content improved at all concentrations with maximum increase of 66.65% at 2 mg/L Zn. Similarly, the low doses of Zn also rescued the salt induced stress at 200mM NaCl. The enzymes related to proline biosynthesis were also improved at lower doses of Zn. In salt treated plants (150mM), Zn (1 mg/L, 2 mg/L) increased the activity of P5CS by 19.344% and 21%. The P5CR and OAT activities were also improved with maximum increase of 21.66% and 21.84% at 2 mg/L Zn respectively. Similarly, the low doses of Zn also increased the activities of P5CS, P5CR and OAT at 200mM NaCl. Whereas P5CDH enzyme activity showed a decrease of 82.5% at 2mg/L Zn+150mM NaCl and 56.7% at 2mg/L Zn+200 mM NaCl. These results strongly imply the modulatory role of Zn in maintaining of proline pool during NaCl stress.

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Section: Discussionmentioning

confidence: 80%

Exogenous zinc mitigates salinity stress by stimulating proline metabolism in proso millet (Panicum miliaceum L.)

et al. 2023

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“…However, the K content of biomass in humic acid + micronutrient treatment was the highest (Table 9). According to Raza et al (2021), the combination of K and Zn improves the K contents in maize, because of an increase in K2O fixation and photosynthesis activity. Moreover, P contents in grains were higher in only humic acid application because P at high concentration might inhibit Zn and Cu uptakes (Hardjowigeno, 2015).…”

Section: Nutrient Contentsmentioning

confidence: 99%

Application of humic acid supplemented with micronutrient increase rice production

Siregar,

Soekarno Mismana Putra,

Muhammad Abdul Aziz

et al. 2023

J. Agron. Indonesia (Indonesian J. Agron.)

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Fertilizer is one of the crucial inputs to maximize nutrients needed by plants, especially rice. However, insufficient ameliorant application may affect the fertilizers' effectiveness. Humic acid is believed as one of the ameliorants to improve soil conditions resulting in higher nutrient availability. The study aimed to evaluate the effect of combining humic acid and micronutrients on growth, production, and nutrient contents in rice. Three treatments were applied, i.e., control (without humic acid), humic acid, and humic acid + micronutrients. The result showed that both humic acid treatments produced the highest number of tillers, humic acid application solely stimulated the highest root length, and humic acid + micronutrients stimulated the highest plant height, and fresh and dry biomass weight. Grain weight was not affected by treatments, but humic acid + micronutrients gave a higher weight of milled grain and number of filled grains. Humic acid application solely resulted in plant biomass and grains having higher N, P, and K contents. Overall, the application of humic acid + micronutrients is recommended to increase rice production. Keywords: ameliorant; fertilizer; nutrient availability; nutrient uptake

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“…Rehman et al [ 11 ] reported that the antagonistic influence of phosphorus on zinc was lessened by increasing levels of potassium under rice–wheat cropping. In addition, the integrated application of K and Zn significantly enhanced the K uptake in maize [ 12 ]. The current study was designed to evaluate the potential traits of a local landrace for Zn and K uptake in comparison with improved Hashim-08.…”

Section: Introductionmentioning

confidence: 99%

Zinc and Potassium Fertilizer Synergizes Plant Nutrient Availability and Affects Growth, Yield, and Quality of Wheat Genotypes

Bashir

Khan

Alem

et al. 2023

Plants

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The growth and productivity of wheat crops depend on the availability of essential nutrients such as zinc (Zn) and potassium (K2O), which play critical roles in the plant’s physiological and biochemical processes. This study aimed to investigate the synergizing effect of zinc and potassium fertilizers on uptake of both the nutrients, growth, yield, and quality of the Hashim-08 cultivar and local landrace, during the 2019–2020 growing season in Dera Ismail Khan, Pakistan. The experiment was designed using a split plot pattern in a randomized complete pattern, with main plots for the wheat cultivars and subplots for the fertilizer treatments. Results indicated that both cultivars responded positively to the fertilizer treatments, with the local landrace exhibiting maximum plant height and biological yield, and improved Hashim-08, showing increased agronomic parameters, including the number of tillers and grains and spike length. Application of Zn and K2O fertilizers significantly enhanced agronomic parameters, such as the number of grains per plant, spike length, thousand-grain weight, grain yield, harvest index, Zn uptake of grain, dry gluten content, and grain moisture content, while crude protein and grain potassium remained relatively unchanged. The soil’s Zn and K content dynamics were found to vary among treatments. In conclusion, the combined application of Zn and K2O fertilizers proved beneficial in improving the growth, yield, and quality of wheat crops, with the local landrace exhibiting lower grain yield but greater Zn uptake through fertilizer application. The study’s findings highlight that the local landrace showed good response to the growth and qualitative parameter when compared with the Hashim-08 cultivar. Additionally, the combined application of Zn and K showed a positive relation in terms of nutrient uptake and soil Zn and K content.

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Potassium and zinc co-fertilization provide new insights to improve maize (Zea mays L.) physiology and productivity

Cited by 10 publications

References 20 publications

Exogenous zinc mitigates salinity stress by stimulating proline metabolism in proso millet (Panicum miliaceum L.)

Exogenous zinc mitigates salinity stress by stimulating proline metabolism in proso millet (Panicum miliaceum L.)

Application of humic acid supplemented with micronutrient increase rice production

Zinc and Potassium Fertilizer Synergizes Plant Nutrient Availability and Affects Growth, Yield, and Quality of Wheat Genotypes

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