Diurnal changes in chlorophyll fluorescence in four species of bamboo

Kumar, Rohtash; Pal, Mohinder; Teotia, U. V. S.

doi:10.1163/15691590260470447

Cited by 9 publications

(9 citation statements)

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“…After 30 days, the surviving plantlets of all treatments presented an Fv/Fm mean of 0.775 ± 0.004, similar to the 90-days-old ex vitro plants. These results are in accordance with those reported by Kumar et al (2002) for G. angustifolia and other bamboo species with values within the range of 0.75 to 0.85 for nonstressed plants (Bolhar-Nordenkampf et al 1989).…”

Section: Resultssupporting

confidence: 93%

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Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson1

Ornellas

Marchetti

Oliveira

et al. 2019

Pesqui. Agropecu. Trop.

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The bamboo productive chain is still incipient in Brazil, and the low supply of plantlets due to low-efficient conventional propagation methods presents a significant bottleneck to its development. This study aimed to establish a micropropagation protocol for Guadua chacoensis. Explants from donor plants cultivated under controlled environment showed less contamination, if compared to explants from plants grown in the field. The contamination rate was even lower when 2 mL L-1 of Plant Preservative Mixture (PPM™) were added to the culture medium, leading to a higher establishment rate. The obtained cultures were then multiplied using either in vitro-derived nodal segments or clump division in the presence of increasing contents (0 mM, 10 mM, 20 mM, 30 mM or 40 mM) of 6-Benzylaminopurine (BAP). The number of shoots increased with increasing BAP concentrations, but this also resulted in a reduced rooting rate and root length. Plants acclimatized under 0 %, 35 % or 65 % of shading showed a dynamic maximum quantum yield of photosystem II (Fv/Fm), which initially decreased within the first seven days after the transfer to ex vitro conditions, but then increased until reaching stable values of 0.775 after 17 days. Additionally, the shading improved the plant survival rates, if compared to those under non-shaded conditions, which presented photoinhibition and photodamage symptoms.

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Section: Resultssupporting

confidence: 93%

“…Agropec. Trop., Goiânia, v. 49, e55450, 2019 is similar to G. angustifolia [the only American bamboo listed as a priority by Rao et al (1998)], which is likewise a target for the development of new bamboo-based products (Liese et al 2015).…”

Section: Micropropagação De Guadua Chacoensismentioning

confidence: 99%

Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson1

Ornellas

Marchetti

Oliveira

et al. 2019

Pesqui. Agropecu. Trop.

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“…Although midday depression has been found in other bamboo species like Guadua angustifolia and Bambusa tulda [43], no midday depression was observed in Phyllostachys humilis , just as in other bamboo species such as Dendrocalamus gigantus en D. strictus [43]. However, as observed by Kumar et al (2002), Fv/Fm can be lower in the morning, with a recovery later during the day.…”

Section: Discussionmentioning

confidence: 83%

“…Aside from seasonal changes, chlorophyll fluorescence can also vary between sun-exposed and shaded leaves [37]–[41]. Also midday depression of photochemical efficiency is common in higher plant species like in Mediterranean grassland species [42] and in other bamboo species [43].…”

Section: Introductionmentioning

confidence: 99%

Seasonal, Diurnal and Vertical Variation of Chlorophyll Fluorescence on Phyllostachys humilis in Ireland

et al. 2013

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In recent years, temperate bamboo species have been introduced in Europe not only as an ornamental plant, but also as a new biomass crop. To measure adaptation stress of bamboo to the climate of Western Europe, chlorophyll fluorescence was measured on a diurnal and seasonal basis in Ballyboughal, Co. Dublin, Ireland. Measurements were attained on the leaves of each node of Phyllostachys humilis. The most frequently used parameter in chlorophyll fluorescence is the photosynthetic efficiency (Fv/Fm). A seasonal dip - as well as a larger variation - of Fv/Fm in spring compared to the rest of the year was observed. Over the year, the upper leaves of the plant perform better than the bottom leaves. These findings were linked to environmental factors such as light intensity, air temperature and precipitation, as increased light intensities, decreasing air temperatures and their interactions, also with precipitation levels have an effect on the photosynthetic efficiency (Fv/Fm) in these plants.

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“…These results reveal that all the bamboos were in a growth state during the experiment and were not limited by any stress. All the three curves followed the same variations during the experiment; these variations were caused by the change in environment conditions, especially the air temperature that can affect the photosynthetic system [34][35][36]. At the beginning of the fluorescence measurements (January) the bamboo species planted on the three plots were irrigated only with tap water.…”

Section: Discussionmentioning

confidence: 95%

Bamboo Plantations for Phytoremediation of Pig Slurry: Plant Response and Nutrient Uptake

Piouceau

Panfili

Bois

et al. 2020

Plants

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On Réunion Island, a French overseas territory located in the western Indian Ocean, increasing pig livestock farming is generating large quantities of slurry. Most of it is spread on a little agricultural land due to the insular context. Considering the limitation of the quantities that can be spread on agricultural areas (European “Nitrate Directive” 91/676/EEC), the use of wastewater treatment systems using phytoremediation principles is an attractive option for the pig slurry treatment. A wastewater treatment system using bamboo groves was assessed for the pig slurry treatment. Three field plots were designed on an agricultural area and planted with 40 bamboo clumps on each plot. A total of 67 m3 of pig slurry was spread on two plots in two forms: raw slurry and centrifuged slurry. The latter plot was watered with tap water. The total amount of nitrogen, phosphorus and potassium was 5.3, 1.4 and 5.5 t·ha−1, respectively, for the raw slurry treatment and 4.2, 0.4 and 5.1 t·ha−1, respectively, for the centrifuged slurry treatment. The response of bamboo species to pig slurry application was determined using morphologic parameters, Chlorophyll a fluorescence measurements and biomass yield. Compared to the control, the biomass increased by 1.8 to 6 times, depending on the species and the form of slurry. Depending on the species, the average biomass ranged from 52 to 135 t.DM.ha−1 in two years of experiment.

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Diurnal changes in chlorophyll fluorescence in four species of bamboo

Cited by 9 publications

References 0 publications

Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson1

Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson1

Seasonal, Diurnal and Vertical Variation of Chlorophyll Fluorescence on Phyllostachys humilis in Ireland

Bamboo Plantations for Phytoremediation of Pig Slurry: Plant Response and Nutrient Uptake

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