Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice

Yu, Hui; Wang, Junli; Fang, Wei; Yuan, Jiangang; Yang, Zhongyi

doi:10.1016/j.scitotenv.2006.06.013

Cited by 334 publications

(194 citation statements)

References 27 publications

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“…Some trace elements are essential in plant nutrition, but plants growing in the nearby zone of industrial areas display increased concentration of heavy metals serving in many cases as bio monitors of pollution loads (Mingorance et al, 2007). It has also been reported that crops have different abilities to absorb and accumulate metals in their different parts and that there is a wide variation in metal uptake and translocation between plant species and even between cultivars of the same species (Yu et al, 2006). Plant grown on a land pollutant with municipal, domestic or a land polluted with Municipal domestic or industrial wastes can absorb heavy metals in form of mobile ions present in the soil through their roots or through foliar absorption.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal determination of brinjal cultivated in soil with wastes

2017

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An experiment was conducted to determine the heavy metal status in fruits and roots of brinjal plant cultivated in soil mixed with wastes at Environmental Science Field Laboratory, Bangladesh Agriculture University, Mymensingh. Two brinajl varieties of BARI namely BARI1 and BARI4 and three treatments viz. T0: control soil, T1: Municipal waste and T2: Industrial wastes were used for the present study. The data were collected on Cu, Zn, Pb and Fe of both fruits and roots of the brinjal plants. The data were analyzed by Atomic Absorption Spectrophotometer (AAS). The two factors experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Results revealed that the initial contents of Cu, Zn, Pb and Fe were higher in industrial waste mixed soil as compared to municipal waste and control soil. In contrast, the incidence of heavy metals in fruits and roots were tolerable range in normal and municipal waste mixed soil while industrial waste mixed soil showed highest values. This study also showed that the industrial waste treated plants of BARI1 uptaked the more Cu and Zn content (16.12 and 21.39 mg/kg, respectively) in roots while plants of BARI4 gave the more Pb and Fe content (0.363 and 365.70 mg/kg, respectively) in roots compared other interaction treatments. However, without waste treated or normal soil showed lowest effect on the incidence of heavy metal but municipal waste obtained the moderate effect. This result revealed that the both control and municipal waste treated soil may be acceptable for the cultivation of BARI brinjal in Bangladesh condition. This study also suggested that the industrial waste treated soil may not suitable for the vegetable cultivation might be due to the higher incidence of heavy metal in fruits and roots.Progressive Agriculture 27 (4): 453-465, 2016

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Section: Introductionmentioning

confidence: 99%

Heavy metal determination of brinjal cultivated in soil with wastes

2017

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“…The accumulation of Cd in plants varies greatly not only among plant species but also among genotypes or cultivars within the same species (Yu et al, 2006;Liu et al, 2007;Wang et al, 2007;Martin et al, 2012). The results of the present study showed that different genotypes of water spinach had different Cd retention abilities, resulting in different Cd accumulations.…”

Section: Discussionmentioning

confidence: 59%

Variations in cadmium and nitrate co-accumulation among water spinach genotypes and implications for screening safe genotypes for human consumption

Tang

Luo

et al. 2018

J. Zhejiang Univ. Sci. B

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Abstract:Vegetables are important constituents of the human diet. Heavy metals and nitrate are among the major contaminants of vegetables. Consumption of vegetables and fruits with accumulated heavy metals and nitrate has the potential to damage different body organs leading to unwanted effects. Breeding vegetables with low heavy metal and nitrate contaminants is a cost-effective approach. We investigated 38 water spinach genotypes for low Cd and nitrate co-accumulation. Four genotypes, i.e. JXDY, GZQL, XGDB, and B888, were found to have low co-accumulation of Cd (<0.71 mg/kg dry weight) and nitrate (<3100 mg/kg fresh weight) in the edible parts when grown in soils with moderate contamination of both Cd (1.10 mg/kg) and nitrate (235.2 mg/kg). These genotypes should be appropriate with minimized risk to humans who consume them. The Cd levels in the edible parts of water spinach were positively correlated with the concentration of Pb or Zn, but Cd, Pb, or Zn was negatively correlated with P concentration. These results indicate that these three heavy metals may be absorbed into the plant in similar proportions or in combination, minimizing the influx to aerial parts. Increasing P fertilizer application rates appears to prevent heavy metal and nitrate translocation to shoot tissues and the edible parts of water spinach on co-contaminated soils.

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“…Root dry weights at Cd2 and Cd10 were heavier than at Cd0. Few effects of Cd pollution on rice growth and yields were also reported from other studies, suggesting that evaluation of Cd toxicity based on growth and yield alone should be avoided (Yu et al 2006). The stimulatory effect of Cd on root growth agrees with some previous studies (Meda et al 2007) but disagrees with others.…”

Section: Resultsmentioning

confidence: 78%

Influence of Iron Fertilization on Cadmium Uptake by Rice Seedlings Irrigated with Cadmium Solution

Liu

Zhang

Christie

et al. 2010

Communications in Soil Science and Plant Analysis

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A pot experiment investigated the effects of iron (Fe) fertilization on cadmium (Cd) uptake by rice seedlings irrigated with Cd solution. Shoot dry weight was significantly affected by Fe addition, and root dry weight was affected by Cd addition. Iron supply was the dominant factor affecting the length of the longest leaf and the soil and plant analyzer development (SPAD) value. Cadmium concentrations were much greater in roots than in dithionite-citrate-bicarbonate (DCB) extracts or shoots, and a significant correlation was found between shoot Fe and Cd concentrations. Enhanced Cd uptake observed at high Fe supply implies that enhanced Fe nutrition may counteract the adverse effects of Cd on plants.

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Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice

Cited by 334 publications

References 27 publications

Heavy metal determination of brinjal cultivated in soil with wastes

Heavy metal determination of brinjal cultivated in soil with wastes

Variations in cadmium and nitrate co-accumulation among water spinach genotypes and implications for screening safe genotypes for human consumption

Influence of Iron Fertilization on Cadmium Uptake by Rice Seedlings Irrigated with Cadmium Solution

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