"Effect of Elevated Ozone on Plant Nutrients, Chlorophyll Content and Antioxidant Enzymes in Cauliflower (Brassica oleracea var. botrytis L.)"

N, Sethupathi; Boomiraj, K.; Sritharan, N.

doi:10.29321/maj.2018.000134

Cited by 6 publications

(5 citation statements)

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“…In the same way, potato crop exposed under the elevated ozone resulted in chlorophyll content decline, more rapidly than the control, which triggered leaf senescence during crop growth (Donnelly et al, 2001). Similar studies on cauli ower showed that higher levels of ozone concentrations decreased chlorophyll content, which directly reduced the crop growth and yield (Sethupathi et al, 2018). The ozone will produce ROS within the cells and will evoke hypersensitive response (HR) phenomena and cause necrosis and death of cell in plants (Iriti and Faoro, 2008).…”

Section: Discussionmentioning

confidence: 89%

Physiological Response of Garlic (Allium Sativum) to Elevated Tropospheric Ozone in High Altitude Region of Western Ghats, Tamil Nadu, India

JawaharJothi

Kovilpillai

Subramanian

et al. 2021

Preprint

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A pot culture study was conducted at Horticultural Research Station, Ooty to assess the effect of ground level ozone on physiology in garlic plant and to find out the suitable remedial measures against ground level ozone. The potted soil was found to be acidic in nature with very low salt concentration, very high in organic carbon, medium in nitrogen, phosphorus and high in potassium. Elevated ozone levels (150ppb and 200ppb) had significantly reduced the garlic plant chlorophyll content, stomatal conductance, photosynthetic rate, pungency and total soluble solids. The highest chlorophyll content (33.97µmolm-2) was observed under ambient ozone level (T1) and the lowest chlorophyll content (12.68µmolm-2) was observed in elevated ozone exposure at 200 ppb (T3), the highest stomatal conductance (0.45mmol m-2s-1) was recorded in Ambient Ozone level + foliar spray 3% Panchagavya (T4), and the lowest stomatal conductance (0.11mmol m-2s-1) was observed in elevated ozone exposure at 200 ppb (T3). Since, the elevated ozone had significant reduction in photosynthetic rate in garlic, the lowest was observed (0.82µmol CO2 s-1m-2) in T3- Elevated ozone exposure at 200 ppb and the highest photosynthetic rate (3.02µmol CO2 s-1m-2) was observed in treatment T4- Ambient Ozone level + foliar spray 3% Panchagavya after a week. When coming to quality of garlic bulbs, the highest pungency content was found in Ambient Ozone level + foliar spray 0.1% Ascorbic acid and the lowest was observed in Elevated ozone exposure at 200 ppb (T3) furthermore, in observing the garlic quality where total soluble solids (TSS) showed that the treatment Ambient Ozone level + foliar spray 3% Panchagavya (40.00°Brix) as highest and the treatment Elevated ozone exposure at 200 ppb (T3) recorded the lowest. Thus the tropospheric ozone has detrimental impact on physiological responses, which will reduce crop growth and yield. The ozone protectants helped in scavenging the O3 from apoplast of the crops and among the ozone protectants, neem oil acted as a good ozone scavenger followed by ascorbic acid and panchagavya to improve the physiological response of garlic plant under elevated tropospheric ozone levels.

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Section: Discussionmentioning

confidence: 89%

Physiological Response of Garlic (Allium Sativum) to Elevated Tropospheric Ozone in High Altitude Region of Western Ghats, Tamil Nadu, India

JawaharJothi

Kovilpillai

Subramanian

et al. 2021

Preprint

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“…The results corroborate with the findings of Mishra and Agrawal (2015) observed a 30.8 and 21% increase in MDA content of mung bean cultivars under 68.9 ppb ozone stress. Significant reduction in biochemical traits was also observed in cauliflower (Sethupathi et al, 2018). garlic (Gayathri et al, 2019) and rice (Ramya et al, 2021a).…”

Section: Biochemical Traitsmentioning

confidence: 92%

“…Several studies have been reported that tropospheric ozone significantly reduced the crop yield (Feng and Kobayashi, 2009;Sawada and Kohno, 2009;Rai et al, 2010;Sarkar and Agrawal, 2010;Mishra et al, 2013;Singh et al, 2014;Ziemke et al, 2019). Tropospheric ozone exhibited significant toxicity on various crops like snap bean (Flowers et al, 2007), mung bean (Chaudhary and Agrawal, 2015), potato (Suganthy and Udayasoorian, 2016), garlic (Gayathri et al, 2019), cauliflower (Sethupathi et al, 2018), forests (Elvira et al, 2004;Murugaragavan and Udayasoorian, 2016) and rice (Ramya et al, 2021 a, b).…”

Section: Introductionmentioning

confidence: 99%

Response of Blackgram Cultivars to Elevated Tropospheric Ozone

Dhevagi¹,

Ramya²,

Poornima³

et al. 2021

MAJ

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As a secondary pollutant, Tropospheric ozone is inadvertently increasing every year, thereby causing severe loss to agricultural crops. The present study aimed at evaluating the response of tropospheric ozone against blackgram varieties. Eight ruling blackgram varieties (V.B.N. 1, V.B.N. 2, V.B.N. 3, V.B.N. 5, V.B.N. 6, V.B.N. 7, V.B.N. 8 and CO 6) were exposed to elevated tropospheric ozone concentration (50 ppb) in an open-top chamber. The exposure was given during 31 days after sowing (D.A.S.) to 40 D.A.S. for seven hours (10.00 h-17.00 h). The changes in physiological, biochemical, growth, and yield traits were observed by comparing them with control (ambient condition). Results indicate that physiological, biochemical, growth, and yield traits significantly differed under ozone stress. Amongst all varieties, the reduction of all observed traits was higher in V.B.N. 3 and least in V.B.N. 8. The reduction of photosynthetic rate, stomatal conductance, and chlorophyll content was higher in V.B.N. 3 (33.57, 29.17 and 35.67 %) and least in V.B.N. 8 (26.23, 22.92 and 31.78 %). In the case of biochemical traits, in V.B.N. 3, the malondialdehyde and proline content increased twice and ascorbic acid declined by 39.85 %. However, in V.B.N. 8, malondialdehyde and proline content increased by 78.26 and 89.01 %; while ascorbic acid decreased by 36.31 % only. Similarly, 100-grain weight reduced in V.B.N. 3 by 8.69 % while it was only 5.37 % in V.B.N. 8. The current investigation revealed that V.B.N. 3 is highly sensitive, while V.B.N. 8 is tolerant to ozone stress.

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“…Furthermore, it has antioxidant potential by the experiment conducted by Athavale et al, 2012 with total phenols, FRAP and DPPH assays. Panchagavya were studied as ozone protectants in cauli ower (Sethupathi et al, 2018) and different plants and tree species of shola forest (Murugaragavan et al, 2018). Similarly, neem oil, which used in the study have highest percentage of antioxidant activity imputed to total phenol content under ethanol extract and it generates more free radicals, which have ability to inhibit highest percentage of DPPH radical.…”

Section: Introductionmentioning

confidence: 99%

“…Neem oil as ozone protectants studies in different crops like cauli ower (Sethupathi et al, 2018) and in different plants and tree species of shola forest (Murugaragavan et al, 2018). Ascorbic acid as a source of vitamin c plays a vital role to reduce the ozone impact in plants such as groundnut (Chaudhary et al, 2020), Soyabean (Jiang et al, 2018), Wheat (Fatima et al, 2019), Arabidopsis (Bellini and Tullio, 2019), Cauli ower (Sethupathi et al, 2018). The application of ascorbic acid, neem oil, and panchagavya was done to assess their capability to reduce the ozone impact on garlic crops in this study.…”

Section: Introductionmentioning

confidence: 99%

Physiological response of Garlic (Allium sativum) to elevated tropospheric ozone in high altitude region of Western Ghats, Tamil Nadu, India

JawaharJothi

Boomiraj

Subramanian

et al. 2022

Preprint

View full text Add to dashboard Cite

A pot culture study was conducted at Horticultural Research Station, Ooty, to assess the effect of ground-level ozone on physiology in garlic plants and find out suitable remedial measures against ground-level ozone. The potting soil was acidic with very low salt concentration, very high in organic carbon, medium in nitrogen, phosphorus and high in potassium. Elevated ozone levels (150ppb and 200ppb) had significantly reduced the garlic plant chlorophyll content, stomatal conductance, photosynthetic rate, pungency and total soluble solids. The highest chlorophyll content (33.97µmolm-2) was observed under ambient ozone level(T1), and lowest chlorophyll content (12.68µmolm-2) was observed in elevated ozone exposure at 200 ppb(T3), highest stomatal conductance (0.45mmol m-2s-1) was recorded in Ambient Ozone level+foliar spray 3%Panchagavya(T4), and lowest stomatal conductance (0.11mmolm-2s-1) was observed in elevated ozone exposure at 200 ppb(T3).Since the elevated ozone had a significant reduction in photosynthetic rate in garlic, lowest was observed (0.82µmolCO2 s-1m-2) in T3-Elevated ozone exposure at 200 ppb and the highest photosynthetic rate (3.02µmolCO2 s-1m-2) was observed in treatment T4-Ambient Ozone level+foliar spray 3%Panchagavya after a week. When coming to quality of garlic bulbs, highest pungency content was found in Ambient Ozone level+foliar spray 0.1%Ascorbic acid and lowest was observed in Elevated ozone exposure at 200 ppb(T3) furthermore, in observing garlic quality where total soluble solids (TSS) showed that the treatment Ambient Ozone level+foliar spray 3%Panchagavya (40.00°Brix) as highest and treatment Elevated ozone exposure at 200 ppb(T3) recorded the lowest. Thus, tropospheric ozone has detrimental impact on physiological responses, which will reduce crop growth and yield. The ozone protectants helped in scavenging the O3 from apoplast of the crops. Among the ozone protectants, neem oil acted as a good ozone scavenger followed by ascorbic acid and panchagavya to improve the physiological response of garlic plants under elevated tropospheric ozone levels.

show abstract

"Effect of Elevated Ozone on Plant Nutrients, Chlorophyll Content and Antioxidant Enzymes in Cauliflower (Brassica oleracea var. botrytis L.)"

Cited by 6 publications

References 0 publications

Physiological Response of Garlic (Allium Sativum) to Elevated Tropospheric Ozone in High Altitude Region of Western Ghats, Tamil Nadu, India

Physiological Response of Garlic (Allium Sativum) to Elevated Tropospheric Ozone in High Altitude Region of Western Ghats, Tamil Nadu, India

Response of Blackgram Cultivars to Elevated Tropospheric Ozone

Physiological response of Garlic (Allium sativum) to elevated tropospheric ozone in high altitude region of Western Ghats, Tamil Nadu, India

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