Impact of warming climate on barley and tomato growth and photosynthetic pigments

Juknys, Romualdas; Januškaitienė, Irena; Dikšaitytė, Austra; Šliumpaitė, Irma

doi:10.6001/biologija.v58i2.2490

Cited by 2 publications

(2 citation statements)

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“…However, the [25/400] treatment marginally modified plant response to elevated (700 μmol mol −1 ) CO 2 concentration: biomass production and A growth were slightly higher in [25/700]‐grown plants compared with the ones from [21/700] conditions, but the differences were not statistically significant (Table 1). A similar effect was demonstrated in other reports (Cen and Sage, 2005; Vu, 2005; Yoon et al, 2009) and our studies (Juknys et al, 2011, 2012) and is explained by increased optimal temperature for plant growth (Long and Drake, 1991; McMurtrie and Wang, 1993) and net photosynthesis (Bernacchi et al, 2006; Alonso et al, 2009) under elevated [CO 2 ]. According to Long and Drake (1991), the optimal temperature for many C 3 plants may increase by approximately 5°C as [CO 2 ] increases by 300 μmol mol −1 ; our results support this hypothesis.…”

Section: Discussionsupporting

confidence: 93%

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature

et al. 2017

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The factors of global climate change specifically affect crop and weed performance. Peas (Pisum sativum L.), spring barley (Hordeum vulgare L.), and wild mustard (Sinapis arvensis L.) were exposed to elevated atmospheric CO2 concentration ([CO2]) (1400 or 700 vs. 400 μmol mol−1) and air temperature (25/18 vs. 21/14°C, day/night) to study the single and combined effects on plant growth, photosynthetic performance, and carbohydrate metabolism. Significantly greater stimulation of the photosynthetic rate was determined at the corresponding growth CO2 concentration (Agrowth), and water use efficiency (WUE) and biomass production were detected for crops than for weed exposed to elevated [CO2]. The possibilities to translocate total soluble sugars (TSS) and starch into roots are considerably higher for crop species, especially N2–fixing pea plants compared with wild mustard, while the accumulation of photosynthates in leaves of wild mustard led to higher photosynthetic downregulation and considerably lower stimulation of Agrowth. Moreover, an increase in WUE was completely eliminated at 4°C above ambient air temperature ([25/400]) in wild mustard grown under elevated [CO2], while crops still maintained slightly higher WUE. These findings suggest that investigated crop species, especially pea plants, have higher advantage than weed under rising [CO2], and this benefit is detected to be even higher under elevated [CO2] and temperature.

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Section: Discussionsupporting

confidence: 93%

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature

et al. 2017

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“…Under the condition of elevated carbon dioxide, photosynthesis would achieve its process, which significantly increases biomass accumulation in both above ground and below ground (root) biomass (Roy et al, 2012). This was similarly found in the other plants such as barley and tomato (Juknys et al, 2012).…”

Section: Effects Of Ozone and Carbon Dioxide On Biomassmentioning

confidence: 64%

Combining effects of ozone and carbon dioxide application on photosynthesis of Thai jasmine rice (Oryza sativa L.) cultivar Khao Dawk Mali 105

Phothi¹,

Umponstira²,

Sarin³

et al. 2016

Aust J Crop Sci

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This research investigated the effects of elevated ozone and carbon dioxide on photosynthesis of rice (Oryza sativa L.) cultivar Khao Dawk Mali 105. Seedlings were kept in indoor climate control chambers which were set to typically background level of ozone (<10 ppb) by passing inlet air from outside through charcoal filter prior to enter to the chambers. Plant samples were fumigated by ozone concentration level at 40 ppb, 70 ppb and carbon dioxide concentration level at 700 ppm. For combined effects, elevated carbon dioxide concentration 700 ppm was given into two combination treatments of ozone concentration level at 40 and 70 ppb. Control groups were grown in charcoal-filter chambers with no additional ozone. Plant samples then were fumigated with ozone and carbon dioxide for 28 days at tillering stage (at the rice age of 42 to 70 days), and analyzed weekly for photosynthesis rate, leaf chlorophyll, total soluble sugar and biomass. The results showed that ozone significantly caused reduction in photosynthesis, leaf chlorophyll, total soluble sugar and total biomass of rice. The ozone concentration level of 70 ppb significantly (p ≤ 0.05) affected rice more than 40 ppb treatment. Nevertheless, elevated carbon dioxide reduced the negative effects of ozone from both ozone concentration levels. Moreover, higher photosynthesis was observed in combined treatment, when compared with the control group. Finally, increasing of ozone caused reduction in rice photosynthesis; however, elevated carbon dioxide could significantly adverse the effects of ozone.

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Impact of warming climate on barley and tomato growth and photosynthetic pigments

Cited by 2 publications

References 26 publications

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature

Combining effects of ozone and carbon dioxide application on photosynthesis of Thai jasmine rice (Oryza sativa L.) cultivar Khao Dawk Mali 105

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Impact of warming climate on barley and tomato growth and photosynthetic pigments

Cited by 2 publications

References 26 publications

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO2 and Temperature

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO2 and Temperature

Combining effects of ozone and carbon dioxide application on photosynthesis of Thai jasmine rice (Oryza sativa L.) cultivar Khao Dawk Mali 105

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Product

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Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature

Different Crop and Weed Performance under Single and Combined Effects of Elevated CO₂ and Temperature