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Growth and photosynthetic acclimation to temperature in hybrid napier grass (Pennisetum purpureum × P. americanum cv. Pakchong 1) and giant reed (Arundo donax)

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Growth and photosynthetic acclimation to temperature in hybrid napier grass (Pennisetum purpureum × P. americanum cv. Pakchong 1) and giant reed (Arundo donax). / Jampeetong, Arunothai; Guo, Wen Yong; Brix, Hans.

I: Aquatic Botany, Bind 164, 103232, 05.2020.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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@article{9d0957d718704b08bb413858c8189cba,
title = "Growth and photosynthetic acclimation to temperature in hybrid napier grass (Pennisetum purpureum × P. americanum cv. Pakchong 1) and giant reed (Arundo donax)",
abstract = "This study aimed to assess the effects of temperature on growth and photosynthetic performance of hybrid Napier grass (a C4 plant) as compared to giant reed (a C3 plant). The plants were grown under 20/16 °C, 28/24 °C and 36/32 °C day/night temperature, respectively, in walk-in growth cabinets. The optimum temperature for plant growth and photosynthesis of hybrid Napier grass was 28/24 °C. At higher or lower temperature, the plants had lower growth rates, dry mass production, and net CO2 assimilation rates. Moreover, at 20/16 °C anthocyanin was formed in the epidermal cells of stems and young leaves probably as a defence strategy of the plants to prevent photo-inhibition damage. Giant reed performed optimal at 28/24 °C and 36/32 °C, but growth rates, dry mass production and net CO2 assimilation rates decreased at the lower temperatures. At the lowest temperature, giant reed had significantly higher contents of chlorophyll in the leaves and lower light compensation points than at the higher temperature. These cold acclimation responses enhance the photosynthetic performance of giant reed at low temperatures, which is an advantage for growth in cold climates, particularly at low light intensities. The results show that the C4 hybrid Napier grass has a low plasticity in relation to growth temperature and, surprisingly, has reduced growth at high ambient temperatures, whereas the C3 giant reed is more plastic and has a high acclimation potential and grows best at high temperatures.",
keywords = "Bioenergy crop, Biomass, CO assimilation, Giant reed, Napier grass",
author = "Arunothai Jampeetong and Guo, {Wen Yong} and Hans Brix",
year = "2020",
month = may,
doi = "10.1016/j.aquabot.2020.103232",
language = "English",
volume = "164",
journal = "Aquatic Botany",
issn = "0304-3770",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Growth and photosynthetic acclimation to temperature in hybrid napier grass (Pennisetum purpureum × P. americanum cv. Pakchong 1) and giant reed (Arundo donax)

AU - Jampeetong, Arunothai

AU - Guo, Wen Yong

AU - Brix, Hans

PY - 2020/5

Y1 - 2020/5

N2 - This study aimed to assess the effects of temperature on growth and photosynthetic performance of hybrid Napier grass (a C4 plant) as compared to giant reed (a C3 plant). The plants were grown under 20/16 °C, 28/24 °C and 36/32 °C day/night temperature, respectively, in walk-in growth cabinets. The optimum temperature for plant growth and photosynthesis of hybrid Napier grass was 28/24 °C. At higher or lower temperature, the plants had lower growth rates, dry mass production, and net CO2 assimilation rates. Moreover, at 20/16 °C anthocyanin was formed in the epidermal cells of stems and young leaves probably as a defence strategy of the plants to prevent photo-inhibition damage. Giant reed performed optimal at 28/24 °C and 36/32 °C, but growth rates, dry mass production and net CO2 assimilation rates decreased at the lower temperatures. At the lowest temperature, giant reed had significantly higher contents of chlorophyll in the leaves and lower light compensation points than at the higher temperature. These cold acclimation responses enhance the photosynthetic performance of giant reed at low temperatures, which is an advantage for growth in cold climates, particularly at low light intensities. The results show that the C4 hybrid Napier grass has a low plasticity in relation to growth temperature and, surprisingly, has reduced growth at high ambient temperatures, whereas the C3 giant reed is more plastic and has a high acclimation potential and grows best at high temperatures.

AB - This study aimed to assess the effects of temperature on growth and photosynthetic performance of hybrid Napier grass (a C4 plant) as compared to giant reed (a C3 plant). The plants were grown under 20/16 °C, 28/24 °C and 36/32 °C day/night temperature, respectively, in walk-in growth cabinets. The optimum temperature for plant growth and photosynthesis of hybrid Napier grass was 28/24 °C. At higher or lower temperature, the plants had lower growth rates, dry mass production, and net CO2 assimilation rates. Moreover, at 20/16 °C anthocyanin was formed in the epidermal cells of stems and young leaves probably as a defence strategy of the plants to prevent photo-inhibition damage. Giant reed performed optimal at 28/24 °C and 36/32 °C, but growth rates, dry mass production and net CO2 assimilation rates decreased at the lower temperatures. At the lowest temperature, giant reed had significantly higher contents of chlorophyll in the leaves and lower light compensation points than at the higher temperature. These cold acclimation responses enhance the photosynthetic performance of giant reed at low temperatures, which is an advantage for growth in cold climates, particularly at low light intensities. The results show that the C4 hybrid Napier grass has a low plasticity in relation to growth temperature and, surprisingly, has reduced growth at high ambient temperatures, whereas the C3 giant reed is more plastic and has a high acclimation potential and grows best at high temperatures.

KW - Bioenergy crop

KW - Biomass

KW - CO assimilation

KW - Giant reed

KW - Napier grass

UR - http://www.scopus.com/inward/record.url?scp=85080994606&partnerID=8YFLogxK

U2 - 10.1016/j.aquabot.2020.103232

DO - 10.1016/j.aquabot.2020.103232

M3 - Journal article

AN - SCOPUS:85080994606

VL - 164

JO - Aquatic Botany

JF - Aquatic Botany

SN - 0304-3770

M1 - 103232

ER -