Irrigation and Zn fertilizer management improves Zn phyto‐availability in various rice production systems

Rehman, Hafeez ur; Rasool, Faiz; Awan, Masood Iqbal; Mahmood, Athar; Wakeel, Abdul; Hajiboland, Roghieh

doi:10.1002/jpln.201700412

Cited by 9 publications

(7 citation statements)

References 35 publications

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“…In the present study, the highest grain yield with Zn seed priming might be attributed to an increase in kernel size (Amanullah & Inamullah, 2016) and a decrease in panicle sterility (Rehman et al, 2018), compared with the control. Zinc seed priming was more effective in enhancing the number of tillers among different Zn application methods.…”

Section: Discussionsupporting

confidence: 44%

“…Application of Zn improved the pollination and pollen tube development and increased kernel number per panicle and ultimately the grain yield (Farooq et al., 2018; Shariatipour, Alavikia, Vahed, Velu, & Heidari, 2020). In the present study, the highest grain yield with Zn seed priming might be attributed to an increase in kernel size (Amanullah & Inamullah, 2016) and a decrease in panicle sterility (Rehman et al., 2018), compared with the control. Zinc seed priming was more effective in enhancing the number of tillers among different Zn application methods.…”

Section: Discussionmentioning

confidence: 45%

“…Seed priming helps to initiate and complete the germination process in a contemporized manner, which results in uniform stand establishment even under unfavorable conditions (Farooq et al., 2019). Uniform and early stand establishment of primed rice seedlings resulted in greater number of fertile tillers and higher grain yield, as seed priming provides a strong foundation for the plant, which leads to better plant growth and seed setting (Rehman et al., 2018). Improvement in grain yield with Zn seed priming might also be attributed to the role of Zn in activation of various enzymes (Sadeghzadeh, & Rengel, 2011), which initiates early germination and results in uniform stand establishment and higher paddy yield (Farooq et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Seed priming helps to initiate and complete the germination process in a contemporized manner, which results in uniform stand establishment even under unfavorable conditions (Farooq et al, 2019). Uniform and early stand establishment of primed rice seedlings resulted in greater number of fertile tillers and higher grain yield, as seed priming provides a strong foundation for the plant, which leads to better plant growth and seed setting (Rehman et al, 2018 Note. RPs, rice production systems; PudTR, puddled transplanted rice; DSR, direct-seeded rice.…”

Section: Discussionmentioning

confidence: 99%

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Zinc nutrition to enhance rice productivity, zinc use efficiency, and grain biofortification under different production systems

et al. 2020

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Zinc (Zn) deficiency is the most important abiotic factor limiting rice (Oryza sativa L.) productivity and also a nutritional disorder with adverse impacts on human health worldwide. The present study investigated the comparative effect of four Zn application methods: Zn seed coating (2 g Zn kg−1 seed), Zn seed priming (0.25 M Zn solution), basal application (10 kg ha−1), and Zn foliar spray (0.5% Zn solution) in improving the productivity and biofortification of rice under puddled transplanted (PudTR) and direct‐seeded rice (DSR) system. A general control with no Zn application was included, whereas hydro‐priming and foliar water application were used as positive control treatments for Zn seed priming and Zn foliar spray, respectively. Regardless of application methods, Zn nutrition significantly improved the yield and related traits and grain Zn concentration in both production systems. Averaged across 2 yr, the increase in grain yield under different Zn application treatments was in the order of seed priming (23%) > foliar application (18%) > basal application (18%) > seed coating (13%), compared with the control. However, grain Zn concentration was the highest with seed priming in PudTR (33% over control) and with basal application in DSR (45% over control). The maximum net benefits were obtained through Zn seed priming in both production systems. In conclusion, Zn seed priming improved the yield and was the most cost‐effective method in PudTR and DSR system.

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Section: Discussionsupporting

confidence: 44%

Section: Discussionmentioning

confidence: 45%

Section: Discussionmentioning

confidence: 99%

“…Seed priming helps to initiate and complete the germination process in a contemporized manner, which results in uniform stand establishment even under unfavorable conditions (Farooq et al, 2019). Uniform and early stand establishment of primed rice seedlings resulted in greater number of fertile tillers and higher grain yield, as seed priming provides a strong foundation for the plant, which leads to better plant growth and seed setting (Rehman et al, 2018 Note. RPs, rice production systems; PudTR, puddled transplanted rice; DSR, direct-seeded rice.…”

Section: Discussionmentioning

confidence: 99%

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Zinc nutrition to enhance rice productivity, zinc use efficiency, and grain biofortification under different production systems

et al. 2020

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“…This paper focuses on how agricultural methods in Cambodia could be improved to reduce zinc deficiency and in turn enhance the immune systems in Cambodians and their livestock [51][52][53]. We also review diseases in Cambodia with the potential to cause another pandemic.…”

Section: Introductionmentioning

confidence: 99%

The Role of Micronutrients and Toxic Metals in the Management of Epidemics in Cambodia

Murphy

Phan

Irvine

et al. 2021

IJERPH

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The illegal trade of wildlife in SE Asia has been identified as the likely cause of the COVID-19 pandemic. We reviewed 198 papers on the current COVID pandemic in Cambodia, diseases such as avian influenza and Nipah virus, most likely to develop into a new pandemic in Cambodia, and common features of disease that require mitigation. Artisanal goldmining uses pure mercury in the areas where wildlife is smuggled to China. Moreover, 30–40% of Cambodians are zinc deficient. High levels of arsenic in irrigation water (>1000 µg/L) are associated with very low levels of zinc in rice (5 µg/g) and rice is the primary staple food for the region. Brown rice from nine of 15 paddy fields in the arsenic zone of Cambodia had double the new guidelines of 100 µg/kg inorganic arsenic for children’s food in the EU and USA. The combination of deficiencies of essential micronutrients like zinc and pervasive presence of arsenic and mercury has the potential to compromise the immunity of many Cambodians. Innovative solutions are suggested to improve micronutrient nutrition. Toxins that suppress the immune system must be better managed to reduce the virulence of pathogens. Cambodia was not likely the source of the COVID-19 but does have problems that could result in a new pandemic.

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Seed priming with selenium: Effects on germination, seedling growth, biochemical attributes, and grain yield in rice growing under flooding conditions

Jiang

Zhun³

et al. 2022

Plant Direct

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Prevalent irregular rainfall, flooding for weed control, and unleveled fields in the middle and lower reaches of the Yangtze River all contribute to flooding stress on germination and growth of direct-seeded rice (Oryza sativa L.). Herein, some experiments were conducted so as to assess the effects of seed priming with selenium (Se) on the germination and growth of rice under hypoxia. The experiment was arranged in a completely randomized factorial design with two factors and five replicates. Factors included Se concentration (0, 30, and 60 μmol/L) and duration of flooding stress (0, 2, 4, and 8 days). The experimental results showed that Se accelerated seed germination and increased emergence index and final emergence percentage. Additionally, Se increased shoot and root lengths and dry weights, but high Se concentration (60 μmol/L) reduced 18-day-old seedling dry weight under long-term flooding (8 days). Furthermore, Se reduced malondialdehyde content and increased starch hydrolysis efficiency in seeds, superoxide dismutase, peroxidase, catalase, and glutathione peroxidase activities and seedling soluble protein and total chlorophyll contents. Se improved seedling total Se and organic Se contents while increasing total dry weight and yield. Notably, the highest yield was obtained after a 4-day flooding period. Although Se priming favored rice seedling emergence and growth under flooding conditions, Se concentrations equal or above 60 μmol/L increased the risk of seedling death during long-term flooding (≥8 days).

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Irrigation and Zn fertilizer management improves Zn phyto‐availability in various rice production systems

Cited by 9 publications

References 35 publications

Zinc nutrition to enhance rice productivity, zinc use efficiency, and grain biofortification under different production systems

Zinc nutrition to enhance rice productivity, zinc use efficiency, and grain biofortification under different production systems

The Role of Micronutrients and Toxic Metals in the Management of Epidemics in Cambodia

Seed priming with selenium: Effects on germination, seedling growth, biochemical attributes, and grain yield in rice growing under flooding conditions

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