Ultrasonic seed treatment improved physiological and yield traits of rice under lead toxicity

Rao, G. S.; Ashraf, Umair; Huang, Sixiu; Cheng, Siren; Abrar, Muhammad; Mo, Zhaowen; Pan, Shenggang; Tang, Xiangru

doi:10.1007/s11356-018-3303-5

Cited by 30 publications

(22 citation statements)

References 46 publications

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“…China. The plot size was 3.4 m × 2.8 m. The experimental soil was a silty clay polluted by Pb which was prepared as described by Rao et al (2018). The experimental soil contained total N 1.07 g kg −1 , available phosphorus 48.75 mg kg −1 , available potassium 68.28 mg kg −1 , organic matter 22.48 g kg −1 , and total Pb content 418.64 mg kg −1 .…”

Section: Experimental Description and Designmentioning

confidence: 99%

“…At the maturity stage (97 days after transplanting), grain yield and yield components were measured. The grain yield was harvested according to the method of Rao et al (2018). The panicle numbers were measured by counting the panicle from each plot.…”

Section: Determination Of Yield and Yield Componentsmentioning

confidence: 99%

“…Many investigations have focused on the ways to mitigate the negative effect of Pb toxicity in rice and to find out the possible physiological and biochemical bases (Ashraf et al 2018;Chen et al 2017;Liu et al 2015). For example, Rao et al (2018) suggested that seeds with ultrasonic treatment improved the content of proline and soluble protein and enhanced the activities of SOD, CAT, and ascorbate peroxidase under Pb toxicity, which ultimately increased grain yield. Akhtar et al (2017) indicated that smoke could lessen Pb stress in two rice cultivars grown in Pbcontaminated soil.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen Regulates the Grain Yield, Antioxidant Attributes, and Nitrogen Metabolism in Fragrant Rice Grown Under Lead-Contaminated Soil

Feng

YangFan

et al. 2020

J Soil Sci Plant Nutr

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The aim of this study is to investigate the effect of nitrogen (N) in the regulation of grain yield, growth, and physiology and biochemistry of fragrant rice under lead (Pb) stress. Three fragrant rice cultivars (Daohuaxiang, Basmati, and Yungengyou14) were grown under two N application levels (CK, 0 kg N ha −1 , and HN, 200 kg N ha −1) under Pb-contaminated soil. The grain yield, growth, antioxidant attributes, and N metabolism of fragrant rice cultivars were investigated. Results showed that compared with CK, HN treatment increased grain yield in Daohuaxiang, Basmati, and Yungengyou14 by 24.09%, 26.74%, and 23.29%, respectively. Improvement in the effective panicle, grain number per panicle, and 1000-grain weight and agronomic traits under HN treatment was detected. HN treatment decreased the seed setting rate in the three fragrant rice cultivars. In addition, the peroxidase (POD), catalase (CAT), and glutamate synthetase (GOGAT) activity in HN treatment were increased for the three fragrant rice cultivars at both heading stage and maturity as compared to CK. The correlation between the grain yield and the other investigated parameters has also been accessed. Yungengyou14 produced the highest partial factor productivity of N and agronomic use efficiency of N. Those results suggested that N could improve the grain yield resulted from affecting the growth and physiological response of fragrant rice grown under Pb-contaminated soil.

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Section: Experimental Description and Designmentioning

confidence: 99%

Section: Determination Of Yield and Yield Componentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nitrogen Regulates the Grain Yield, Antioxidant Attributes, and Nitrogen Metabolism in Fragrant Rice Grown Under Lead-Contaminated Soil

Feng

YangFan

et al. 2020

J Soil Sci Plant Nutr

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“…An ultrasonic seed pretreatment provides basic conditions for plant growth and has a positive impact on the electrical conductivity and physiological substances in seeds (Wang et al, 2012). In response to stress suffered by rice, yield, quality, and antioxidants were positively enhanced after seeds were subjected to ultrasound treatment (Rao et al, 2018). Germination rate and plant survival have been used in previous studies as characteristics of waterlogging tolerance in barley and its visible response to waterlogging (Miano et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Germination rate and plant survival have been used in previous studies as characteristics of waterlogging tolerance in barley and its visible response to waterlogging (Miano et al, 2015). Although widely used in engineering, ultrasound is relatively less applied to agriculture; the ultrasonic treatment has been used to investigate crop growth such as in beans, chickpeas, peppers, and rice (Goussous et al, 2010;Rao et al, 2018). Therefore, it is hypothesized that the ultrasound technique improves the germination of seeds that lack vitality and plant regulation could be obtained; the subsequent impact of ultrasound on rice seedlings under waterlogging stress was studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic seed treatment on rice seedlings under waterlogging stress

Huang

Jia

Liu

et al. 2020

Chil. j. agric. res.

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One of the main problems of rice (Oryza sativa L.) cultivation is erratic germination and crop establishment; therefore, a pre-sowing ultrasonic seed treatment was studied to improve this situation. A pot experiment was conducted to investigate the effect of ultrasonic seed treatment on rice seedlings under waterlogging conditions. Two cultivars of rice seeds, 'Yuejingsimiao' (YJSM) and 'Yuxiangyouzhan' (YXYZ), were treated with ultrasonic waves before being transferred to the pot. The ultrasonic treatment included seed treatments in the dry state (S1), wet state (S2), and a control (CK). The waterlogging treatment included three flooding levels, control (W0), 2.0-3.0 cm flooding (W1), and 3.0-4.0 cm flooding (W2). The seedling emergence rate for W1S2 was 35.07% to 64.39% higher than W1CK, while fresh weight for W2S2 increased by 54.21% to 89.98% compared with W2CK. Furthermore, W1S1 (11.74% to 15.02%) and W1S2 (7.87% to 43.29%) also increased catalase activities compared with W1CK. Malondialdehyde (MDA) decreased by 19.87% to 31.84% and 9.70% to 38.74% for YJSM and YXYZ, respectively. The results showed that under waterlogging conditions, wet seed under ultrasonic treatment significantly increased the seedling emergence rate. Both the wet and dry seed treatments improved seedling quality, antioxidant activity, but decreased the MDA content.

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