A Zn deficient clay soil was used in our screening. Zinc deficiency remarkably depressed the zinc concentrations in the meristematic tissues of rice plants. Plant Soil 42, 537–550 (1975). Zinc deficiency is more common among older people who live in institutions and people who are homebound. Deficiency due to a diet low in zinc is uncommon in developed countries. Am. Learn more about Institutional subscriptions. 295–328 (1964). Since much of the Philippines is derived from lime-stones and coral reefs, zinc deficiency of rice ought to occur in the Philippines. We are using cookies to give you the best experience on our website, deliver our services, personalize content, and to analyze traffic. 19, 446–448 (1955). Tanaka, A. and Navasero, S. A., Carbon dioxide and organic acids in relation to the growth of rice. Zinc deficiency scenario . Soviet Soil Sci. In laboratory experiments with a known problem soil, bicarbonate concentration reached a peak of 42 mM 5 weeks after soil submergence, and the concentration of organic acids peaked at approximately 10 me/l after 4 weeks. : Annual Report for 1969. Zinc-deficient soils constrain rice production and cause Zn-malnutrition. Zn is only slightly mobile in the plant and quite immobile in soil. Animal Sci. Zinc is an immobile nutrient in the soil and for early season or post-flood applications the rice typically has not fully canopied and much fo the soil surface remains exposed. The level and properties of calcium in soils and its influence on zinc availability. However at pH 4.5 the same concentrations of acetic acid reduced uptake by more than 90 per cent. 2007a). Caroll, M. D. and Loneragan, J. F., Response of plant species to concentrations of zinc in solution I. Reasons International Rice Research Institute. Here, we report a detailed study of the impact of Zn deficiency on crown root development of rice genotypes, differing in their tolerance to this stress. The International Rice Research Institute. In Pakistan, the most recent national nutrition survey indicated that over 40% of women are zinc deficient. Zn deficiency results in brown blotches and streaks 2 to 3 weeks after transplanting, as well as stunting, reduced tillering, and low productivity of rice plants. 10, 35–36, 39–40 (1970). A large portion of its population depends on rice for their daily caloric intake and nutritional needs. Solution culture studies with the variety IR8 showed that with a bicarbonate concentration of only 15 mM, transport of zinc to the shoots was reduced by more than 70 per cent. Bull. Effects of zinc deficiency on rice growth and genetic factors contributing to tolerance. Yoshida, S., Forno, D. A. and Bhadrachalam, A., Zinc deficiency of the rice plant on calcareous and neutral soils in the Philippines. The International Rice Research Institute, Los Baños, Philippines, p. 134–137, 155–157 (1970). Sc.) Shiratori, K., Suzuki, T. and Miyoshi, H., (On a disease of rice plant similar to “Akagare” occurring in paddy field soil dredged from Tone River.) Soil Sci. Soc. Background Zinc (Zn) deficiency is one of the important abiotic factors limiting rice productivity worldwide and also a widespread nutritional disorder affecting human health. Plant and Soil 16, 347–360 (1962). The lack of dietary diversity among poor communities has led to nutritional consequences, particularly micronutrient deficiencies. Background Zinc (Zn) deficiency is one of the important abiotic factors limiting rice productivity worldwide and also a widespread nutritional disorder affecting human health. Introduction. H idden hunger, or micronutrient deficiency, is a leading global problem. PubMed Google Scholar. Zinc nutrition also modulates drought induced growth and antioxidant dysfunction in plant and mitigates dehydration induced damages and improves post stress rehydration responses in plant [30,36]. Sc.) No. Exp. Zinc is an essential plant nutrient required for several biochemical processes in the rice plant, including chlorophyll production and membrane integrity. Zinc is an immobile nutrient in the soil and for early season or post-flood applications the rice typically has not fully canopied and much fo the soil surface remains exposed. Udo, E. J., Bohn, H. L. and Tucker, T. C., Zinc adsorption by calcareous soils. Many conditions can increase the risk of developing zinc deficiency. Zinc (Zn) is an essential micronutrient for living organisms, and understanding the molecular mechanisms of Zn deficiency may help to develop strategies to mitigate this problem. Prakhorov, V. M. and Gromova, Ye. Soil Sci. Plant and Soil 42, 551–563 (1975). Zinc deficiency affects around 17% of the world’s population, mostly in developing countries. 1. 24, 301–307 (1967). Plant Soil 306 37–48. Zinc (Zn) deficiency is one of the leading nutrient disorders in rice (Oryza sativa). Zn deficiency can be caused by many factors, e.g. volume 42, pages537–550(1975)Cite this article. Zn deficiency resulted in a marked decrease in shoot dry matter production of most genotypes after 28 days of growth. Bronzing symptoms of zinc deficiency on rice leaf. Proc. Ponnamperuma, F. N., Dynamic aspects of flooded soils. Soil Sci. Zinc (Zn) deficiency is one of the leading nutrient disorders in rice (Oryza sativa). Role of rice F-bZIPs in the zinc deficiency response The role of the three rice F-bZIPs in the Zn deficiency response was investigated. Causes of Zinc Deficiency . and Plant Nutrition (Japan) 17, 83–87 (1971). The Philippines is one of the major rice-producing and rice-consuming countries of Asia. J. Sci. Zinc deficiency is a particular problem in rice because of the chemistry of submerged rice paddy soils, which results in Zn being extremely insoluble in many rice soils and therefore hard for the plants to … SedberryJr., J. E., Engler, R. M., Peterson, F. J. and Wilson, F. E., The effects of additions of zinc and limestone of the yield and chemical composition of rice. Soc. Soil and Plant Food 2, 63–66 (1956). ... Zinc fortified rice for India and Bangladesh (2013) Stevenson, F. J., Organic acids in soil, In Soil Biochemistry, Part I (A.D.McLaren and G. H.Peterson Eds., Marcel Dekker N. ), The International Rice Research Institute, Los Baños, Philippines) pp. Common symptoms include increased rates of diarrhea. In Lectures on the Inorganic Nutrition of Plants. Agr. Filipinos depend on rice as their main source of nutrition. Prime Minister Narendra Modi released 17 bio-fortified varieties of eight crops this month on World Food Day, which can increase the nutritional value of food staples three-fold.. How to identify. Bull. Zinc deficiency of rice is widespread throughout Asia on neutral to alkaline calcareous soils which contain more than 1 percent organic matter. Control Fed. Proc. Enhancing the contents of iron and zinc in cereal grains will … Tanaka, A., Shimono, K. and Ishizuka, Y., (Zinc deficiency as the cause of the “Akagare” in the rice plants). Soil Sci. Despite these differences, the two varieties appeared equally susceptible to zinc deficiency during the first four weeks of growth under field conditions. Under neutral to alkaline conditions, acetic acid at 10 me/l produced only slight reductions in zinc uptake and transport to the shoots. and Plant Nutrition (Japan) 19, 83–93 (1973). Zinc deficiency is the most widespread micronutrient disorder in rice. - 104.171.4.183. Some plants like grains and beans contain phytate or phytic acid which binds to zinc and prevents its absorption. They don’t eat meat or supplements and stay deficient of zinc. Its occurrence has increased with the introduction of modern varieties, crop intensification, and increased Zn removal. Water Pollut. When the zinc concentration was decreased to a level of less than 100 ppm, disorders of the nitrogen metabolism appeared. 93–97 (1966). 484–499 (1966). Under severe Zn deficiency, tillering decreases or may even stop. Zn is deficient in 50% of the world’s agricultural soils and is . 64, 444–447 (1972). Soc. Soil Sci. What is Zinc Deficiency? DiLallo, R. and Albertson, O. E., Volatile acids by direct titration. Zinc deficiency of rice is widespread throughout Asia on neutral to alkaline calcareous soils which contain more than 1 percent organic matter. Am. (In Japanese). What is the role of Zinc (Zn) in plants. Zinc (Zn) deficiency is one of the leading nutrient disorders in rice (Oryza sativa). In Pakistan, the most recent national nutrition survey indicated that over 40% of women are zinc deficient. Yoshida, S., Forno, D. A., Cock, J. H. and Gomez, K., In Laboratory Manual for Physiological Studies of Rice, (2nd Ed. Adv. These consequences necessitate the design and evaluation of effective programs and policies for reducing micronutrient deficiencies. 1. Many studies have identified Zn efficient rice genotypes, but causal mechanisms for … Various independent studies have shown that foliar fertilization is a more effective approach than base fertilisers for the correction of zinc deficiency in rice (Zhang et al., 2018; Jaksomsak et al., 2018) and at the same time fortifies the plant with zinc that is bio available for human nutrition. and Plant Nutrition 15, 75–80 (1969). Results of the present study indicate that transient peaks in the concentration of bicarbonate and possibly of organic acids in the soil solution following soil submergence may induce temporary zinc deficiencies. Does zinc deficiency play a role in stunting among primary school children in NE Thailand? A Zn deficient clay soil was used in our screening. The high dependence on rice and the lack of diversity in the diet have led to nutritional and health problems, particularly micronutrient deficiencies. Google Scholar. Symptoms appear between two to four weeks after transplanting. S. M. Impa, Sarah E. Johnson-Beebout, Mitigating zinc deficiency and achieving high grain Zn in rice through integration of soil chemistry and plant physiology research, Plant and Soil, 10.1007/s11104-012-1315-3, 361, 1-2, (3-41), (2012). This article explains everything you need to know about zinc, its functions, benefits, the risk of deficiency and potential side effects. Subscription will auto renew annually. Healthier Rice Varieties High-iron and high-zinc rice Iron and Zinc deficiencies Globally, more than 1.6 billion people are anemic. https://doi.org/10.1007/BF00009941, Over 10 million scientific documents at your fingertips, Not logged in Zinc deficiency is defined either as insufficient zinc to meet the needs of the body, or as a serum zinc level below the normal range. Duncan, O. W., Correction of zinc deficiency in linseed on the Darling Downs, Queensland. It is therefore, imperative to apply zinc to such Formerly a Research Scholar of the International Rice Research Institute, Philippines. As depicted in figure 1, the morphological changes i.e., length of radical and plumule was shown in response to Zn NP treatment when subjected to 0 … International Rice Research Institute. Zinc (Zn) is an indispensable element for rice growth. However, since a decrease in the serum concentration is only detectable after long-term or severe depletion, serum zinc is not a reliable biomarker for zinc status. Nene, Y. L., Symptoms, cause and control of Khaira disease of paddy. Soils receiving high phosphorus application, Efficient photosynthesis (sugar production). Sta., No. Zinc (Zn) deficiency is one of the most widespread soil constraints affecting rice productivity, but the molecular mechanisms underlying the regulation of Zn deficiency response is still limited. Australian J. Agr. Zinc (Zn) deficiency is the most prevalent micronutrient disorder in rice and leads to delayed development and decreased yield. CAS  Hodgson, J. F., Chemistry of the micronutrient elements in soils. (John Hopkins Press, Baltimore, Maryland) pp. Zn NP induced antioxidant changes of germinating rice seeds - Formation of Zn-phosphates following large applications of P fertilizer. Zinc (Zn) deficiency in rice has been widely reported in many rice-growing regions of the world. Zinc (Zn) deficiency was first identified as a field problem in rice in 1966 ().It is now widely recognized as one of the most widespread soil constraints in rice production, with as much as 50% of all lowland rice soils prone to Zn deficiency (Sillanpaa, 1990, White and Zasoski, 1999).In a survey of 14 sites in the Philippines, Van Breemen et al. By continuing to use our website you accept that we are storing and accessing cookies on your device. … Addition of cellulose to the soil raised bicarbonate concentrations substantially and organic acid concentrations slightly. Now the fifth leading factor in widespread disease worldwide, zinc deficiency is responsible for a rise in mortality rates in undeveloped nations due to connections to childhood diarrhea and pneumonia. Biofortification is an attractive … This is a preview of subscription content, log in to check access. 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