Evaluation of Drought Tolerance Potential of Elite Genotypes and Progenies of Sugarcane (Saccharum sp. hybrids)

Hemaprabha, G.; Šimon, S.; Lavanya, D. Leena; Sajitha, B.; Venkataramana, S.

doi:10.1007/s12355-012-0182-9

Cited by 47 publications

(39 citation statements)

References 20 publications

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“…Susceptible variety (CoN 03131) shows the minimum content of peroxidise content than tolerance variety (CoN 04131). The results are homologous to the findings of Merlin Christy et al, (2012) and Hemaprabha et al, (2013).…”

Section: Peroxidase (Mk At Mg -1 )supporting

confidence: 90%

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Ganesh¹,

Narwade²,

Mali³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Section: Peroxidase (Mk At Mg -1 )supporting

confidence: 90%

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Ganesh¹,

Narwade²,

Mali³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…The increased accumulation of proline in cultivars under water stress suggests that such amino acid may be involved in the mechanism of osmoregulation and antioxidant defense, contributing to balanced ROS in leaves, as reported in previous studies on water-stressed sugarcane (Molinari et al 2007;Cia et al 2012;Hemaprabha et al 2013). Thus, proline concentrations may be a good biochemical parameter as indicator of water stress, although they were not efficient in signaling paraquat mediated stress due to the great reduction caused by the herbicide in organic solute.…”

Section: Discussionmentioning

confidence: 70%

Physiological and biochemical responses of sugarcane to oxidative stress induced by water deficit and paraquat

Santos

Silva

2015

Acta Physiol Plant

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Physiological and biochemical responses to oxidative stress induced by paraquat or water deficit were examined in this study with respect to photoinhibition, stomatal conductance, photosynthetic pigments, organic solutes, and antioxidant enzymes, aiming at a better understanding of the defense networks connected with antioxidant agents in sugarcane and also to identify cultivars more tolerant to such stress conditions. In the droughtinduced experiment, the plants were exposed to 15 days without irrigation, and in the study with paraquat (PQ), 150 lM of the herbicide was applied to the plants 24 h before the evaluations, conducted simultaneously with the drought experiment. In the second part of the experiment leaf disks were cut from cultivars and immersed in a paraquat solution in Petri dishes and analyzed for chlorophyll degradation. In cultivars SP83-2847 and IAC91-5155, smaller reductions were observed in the maximum photochemical efficiency of photosystem II (F v /F m ) and photosynthetic pigments, when submitted to water deficit and treated with paraquat, and greater reductions were found in cultivars RB92579 and SP81-3250 which had lower dry matter under drought stress. Paraquat produced a toxic effect because of degradation of proline and carbohydrates in cultivars. Both stressors led to an increase in the activity of superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) enzymes in most of the cultivars, confirming the importance of interaction of these enzymes against oxidative stress damages.

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“…Under field conditions, sugarcane presented the best drought tolerance responses in tillering and intense growth stages, precisely when the physiological differences among the varieties submitted to drought stress were more evident. In other studies, these development stages were also identified as a critical period by water demand in sugarcane crop submitted to drought stress (Ramesh & Mahadevaswany, ; Hemaprabha et al, ).…”

Section: Discussionmentioning

confidence: 92%

“…Asterisks indicate differences between irrigated and drought treatments in each variety according to Tukey's test (p < 0.05) the varieties submitted to drought stress were more evident. In other studies, these development stages were also identified as a critical period by water demand in sugarcane crop submitted to drought stress (Ramesh & Mahadevaswany, 2000;Hemaprabha et al, 2013).…”

Section: Discussionmentioning

confidence: 93%

Inter‐relationship between photosynthetic efficiency, Δ¹³C, antioxidant activity and sugarcane yield under drought stress in field conditions

Endres

Santos

Silva

et al. 2019

J Agronomy Crop Science

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Drought is one of the major climatic factors that reduce crop yields in cultivated areas around the world, and studies on physiological responses may help in the selection of drought tolerant genotypes. Thus, this work aimed to correlate gas exchange, photosynthetic efficiency, carbon isotope discrimination (Δ13C) and antioxidant activity in sugarcane varieties submitted to water stress under field conditions. Six sugarcane varieties were submitted to drought stress in three development stages: tillering, intense growth and ripening. In all varieties, the photosynthetic apparatus was severely affected by drought, with a reduction in photosynthetic rate and chlorophyll content. During the tillering stage, reductions in gas exchange and increase in Δ13C and bundle sheath leakiness (φ) were observed. In the intense growth stage, water stress caused increases in leaf temperature, intrinsic water use efficiency, antioxidant enzyme activity and lipid peroxidation, and reductions in stomatal conductance and transpiration in the RB72454, RB855113 and RB855536 varieties. However, the RB92579 variety maintained a better physiological homeostasis at all development stages and presented higher stalks yielding when submitted to drought. This work suggests that screen sugarcane genotype to drought stress should be performed during the intense growth stage, when plants are more sensitive to drought conditions.

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Evaluation of Drought Tolerance Potential of Elite Genotypes and Progenies of Sugarcane (Saccharum sp. hybrids)

Cited by 47 publications

References 20 publications

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Physiological and biochemical responses of sugarcane to oxidative stress induced by water deficit and paraquat

Inter‐relationship between photosynthetic efficiency, Δ¹³C, antioxidant activity and sugarcane yield under drought stress in field conditions

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Evaluation of Drought Tolerance Potential of Elite Genotypes and Progenies of Sugarcane (Saccharum sp. hybrids)

Cited by 47 publications

References 20 publications

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Antioxidant Responses to Water Regimes by Sugarcane Varieties

Physiological and biochemical responses of sugarcane to oxidative stress induced by water deficit and paraquat

Inter‐relationship between photosynthetic efficiency, Δ13C, antioxidant activity and sugarcane yield under drought stress in field conditions

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Product

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Inter‐relationship between photosynthetic efficiency, Δ¹³C, antioxidant activity and sugarcane yield under drought stress in field conditions