Mechanism of differential susceptibility of two rice varieties to zinc deficiency

Chaudhry, F. M.; Alam, S. M.; Rashid, Abdul; Latif, Abdul

doi:10.1007/bf00015923

Cited by 29 publications

(13 citation statements)

References 16 publications

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“…Obviously this was the result of higher per plant grain and straw yield coupled with greater internal Zn requirement of mustard compared with rapeseed ( Figure 1 and Table 1). Crop genotypes are known to vary in their nutrient requirements including Zn (Brown et al, 1972;Chaudhry et al, 1977).…”

Section: Plant Tissue Zinc Requirement and Seed Analysismentioning

confidence: 99%

Diagnosing zinc deficiency in rapeseed and mustard by seed analysis

Rashid¹,

Bughio²,

Rafique³

1994

Communications in Soil Science and Plant Analysis

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Zinc (Zn) deficiency in crops, including rapeseed and mustard, is a widespread nutritional disorder especially in alkaline soils. However, plant analysis diagnostic criteria for interpreting Zn analysis in rapeseed and mustard are scarcely reported in the literature. Use of seeds for diagnosing Zn fertility status of soils has certain advantages over foliar analysis-ease of sampling, processing, and chemical analysis. Despite this, mature seeds of these species were hardly evaluated as an index tissue for this purpose. Our study determined Zn requirement in foliar tissues and also evaluated Zn composition of mature seeds as an index of Zn status of soils and plants. Zinc concentration in mature seeds of the test crops reflected the Zn status of the soil where plants were grown. In fact, the range of Zn concentration in grains was almost comparable with the ranges in foliar plant parts. Critical Zn concentration (mg/kg) in diagnostic plant parts of rapeseed was: whole shoots, 29; leaves, 33; and seeds, 29; while the Zn requirement of mustard was a little higher: whole shoots, 35; leaves, 41; and seeds, 33.

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Section: Plant Tissue Zinc Requirement and Seed Analysismentioning

confidence: 99%

Diagnosing zinc deficiency in rapeseed and mustard by seed analysis

Rashid¹,

Bughio²,

Rafique³

1994

Communications in Soil Science and Plant Analysis

Self Cite

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“…Conventionally, Zn deficiency in lowland rice has been considered to be associated with high concentrations of Fe and Mn in both soils and plant (Giordano et al, 1974;Rahmatullah et al, 1976;Chaudhry et al, 1977). However, bicarbonate concentration increased, whereas Zn concentration in soil solution decreased during flooding (Giordano et al, 1974;Forno et al, 1975) Therefore, inhibition of bicarbonate on uptake of nutrients could easily cause Zn deficiency in lowland rice due to low availability of Zn in flooded soils.…”

Section: Discussionmentioning

confidence: 99%

“…Differences of rice cultivars in Zn efficiency could be mainly associated with their differences in sensitivity to bicarbonate (Forno et al, 1975). H o w e v e r , e n h a n c e d Fe uptake seemed to be responsible for the cultivar differences in susceptibility to Zn deficiency (Chaudhry et al, 1977). The objectives of this study were to determine effects of bicarbonate and root zone temperature (RZT) on uptake of Zn, Fe, Mn and Cu in " Zn-efficient" and "Zn-…”

Section: Introductionmentioning

confidence: 94%

Effect of bicarbonate and root zone temperature on uptake of Zn, Fe, Mn and Cu by different rice cultivars (Oryza sativa L.) grown in calcareous soil

1993

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Pot e x p e r i m e n t s were c o n d u c t e d with a calcareous soil (Inceptisol) to elucidate the effects of bicarbonate (0 and 20 mM) and root zone temperature (15 ° and 25°C) on the uptake of Zn, Fe, Mn and Cu by "Zn-efficient" and "Zn-inefficient" rice cultivars. Bicarbonate decreased concentrations and total uptake of Zn in shoots of "Zn-inefficient" cultivars, especially of IR 26 at 25°C, but not in Zn-efficient cultivars. Bicarbonate decreased concentrations and uptake of Fe in shoots of Zn inefficient cultivars, particularly in IR 26. Concentrations and total uptake of Mn were lower in bicarbonate treatment in the Zn-inefficient cultivars at 15°C, and in all cuttivars at 25°C. However, concentration and uptake of Cu were not affected by bicarbonate in all cultivars. Compared to the 25°C root zone temperature, the concentrations and total uptake of both Zn and Cu in shoots at 15°C were lower in Zn-inefficient than in the Zn-efficient cultivars. The results indicate that Zn-efficiency in rice is causally related to high tolerance of plant to elavated bicarbonate concentrations in soil solution.

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“…For example, Chaudhry et al (1977) in Pakistan observed that the cultivar (cv.) IR-6 of rice (Oryza sativa) was highly susceptible to the incidence of Zn deficiency and cv.…”

Section: Crop Sensitivity To Micronutrient Deficienciesmentioning

confidence: 99%

“…Among the crops that have shown widespread Zn deficiency in Pakistan are: rice (Chaudhry et al, 1977), maize (Anonymous, 1998), cotton Rashid and Rafique, 2002), citrus and deciduous fruits (Anonymous, 1998;Rashid, 2006a). Research in Pakistan showed that not only does Zn deficiency reduce crop yields, but it also delays maturity (Rashid and Fox, 1992;Chaudhry et al, 1977;Anonymous, 1998). As Zn deficiency is common in flooded rice, much effort has been focused on finding a solution to the problem.…”

Section: Zincmentioning

confidence: 99%

Micronutrient Deficiencies in Global Crop Production

Alloway¹

2008

174

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Mechanism of differential susceptibility of two rice varieties to zinc deficiency

Cited by 29 publications

References 16 publications

Diagnosing zinc deficiency in rapeseed and mustard by seed analysis

Diagnosing zinc deficiency in rapeseed and mustard by seed analysis

Effect of bicarbonate and root zone temperature on uptake of Zn, Fe, Mn and Cu by different rice cultivars (Oryza sativa L.) grown in calcareous soil

Micronutrient Deficiencies in Global Crop Production

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