scholarly journals Impact of Selected PSII Parameters on Barley DH Lines Biomass and Yield Elements

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1705
Author(s):  
Tomasz Warzecha ◽  
Edyta Skrzypek ◽  
Jan Bocianowski ◽  
Agnieszka Sutkowska
Keyword(s):  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Yield Components ◽  
Photochemical Efficiency ◽  
Variable Parameter ◽  
Significant Negative Correlation ◽  
Canonical Variate ◽  
Fluorescence Parameters ◽  
Functional Features ◽  
Dh Lines

In our study, we focused on the link among various parameters of chlorophyll a fluorescence and yield elements in the barley doubled haploid (DH) lines. There were significant differences in all studied DH lines, both in yield components and parameters of chlorophyll a fluorescence. The most variable parameter was overall performance index of PSII (PI) while the least was the amount of energy trapped in PSII reaction centers (TRo/CS). Considering yield components, high variation was also observed in the subsequent order from highest to lowest variation: biomass, thousand-grain weight (TGW) and grain number per plant (GNP). Significant negative correlation was found among the following fluorescence parameters: PI and light energy absorption (ABS/CS), as well as between maximum photochemical efficiency (Fv/Fm) and TGW, and between biomass and electron acceptors pool size from PSII (Area). Conversely, significant positive correlation was found between: Area and PI, Area and energy used for electron transport (ETo/CS), Area and GNP, PI and ETo/CS, PI and GNP, ABS/CS and TRo/CS, as well as between ETo/CS and GNP. Yield components combined with fluorescence parameters of chlorophyll a expressed with canonical variate analysis did not clearly distinguish the barley DH lines into hulled and hull-less groups. The mean value for these groups significantly differs only for ETo/CS and TGW values. The other parameters are distributed almost uniformly in hulled and hull-less lines. However, certain hull-less DH lines possess higher yield parameters compared to parental forms, which suggests a possibility of occurrence of transgression effects. The results suggest the chance to find valuable hull-less forms that are desired by breeders and plant producers, since these forms possess favorable functional features.

scholarly journals Chlorophyll a fluorescence parameters in the evaluation of oat DH lines yield components

2017 ◽  
Vol 45 (4) ◽  
pp. 665-674 ◽  
Author(s):  
A. Noga ◽  
M. Warchoł ◽  
I. Czyczyło-Mysza ◽  
I. Marcińska ◽  
K. Dziurka ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Yield Components ◽  
Fluorescence Parameters ◽  
Dh Lines

scholarly journals Chlorophyll a Fluorescence Parameters of Hulled and Hull-less Barley (Hordeum vulgare L.) DH Lines Inoculated with Fusarium culmorum

2019 ◽  
Vol 35 (2) ◽  
pp. 112-124
Author(s):  
Tomasz Warzecha ◽  
Edyta Skrzypek ◽  
Tadeusz Adamski ◽  
Maria Surma ◽  
Zygmunt Kaczmarek ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Fusarium Culmorum ◽  
Hordeum Vulgare L ◽  
Fluorescence Parameters ◽  
Dh Lines

Mapping QTLs for yield components and chlorophyll a fluorescence parameters in wheat under three levels of water availability

2011 ◽  
Vol 9 (2) ◽  
pp. 291-295 ◽  
Author(s):  
Ilona Czyczyło-Mysza ◽  
Izabela Marcińska ◽  
Edyta Skrzypek ◽  
Małgorzata Chrupek ◽  
Stanisław Grzesiak ◽  
...  
Keyword(s):  
Drought Stress ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Wheat Yield ◽  
Dry Weight ◽  
Interval Mapping ◽  
Main Stem ◽  
Severe Drought ◽  
Single Marker Analysis ◽  
Fluorescence Parameters

Drought is one of the major factors limiting wheat yield in many developing countries worldwide. Parameters of chlorophyll a fluorescence kinetics under drought stress conditions have been used to characterize dehydration tolerance in wheat. In the present study, a set of 94 doubled haploid lines obtained from Chinese Spring × SQ1 (CSDH), mapped with 450 markers, was evaluated for yield (grain dry weight/main stem ear), number of grains/main stem ear (NG) and chlorophyll a fluorescence parameters (FC) under moderate and severe drought stress, and compared with results for well-watered plants. quantitative trait loci (QTLs) were identified using Windows QTLCartographer version 2.5 software and the results were analysed using single-marker analysis (SMA) and composite interval mapping (CIM). Analysis using SMA and CIM showed mostly similar QTLs for all traits, though more QTLs were identified by SMA than by CIM. The genetic control of yield, NG and FC varied considerably between drought-stressed and non-stressed plants. Although no major QTL co-locations were found for yield and FC using CIM, the co-location of QTLs for NG, yield and Fv/Fm in drought-stressed plants was observed on chromosome 5A using SMA.

scholarly journals Seasonality and Small Spatial-Scale Variation of Chlorophyll a Fluorescence in Bryophyte Syntrichia ruralis [Hedw.] in Semi-Arid Sandy Grassland, Hungary

Plants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 92 ◽  
Author(s):  
Ruchika ◽  
Zsolt Csintalan ◽  
Evelin Ramóna Péli
Keyword(s):  
Quantum Yield ◽  
Fluorescence Quenching ◽  
Spatial Scale ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Small Spatial Scale ◽  
Variation Trend ◽  
Fluorescence Parameters ◽  
Semi Arid ◽  
Sandy Grassland

Bryophytes face challenges due to global climate change which is leading to in-depth research in monitoring and studying their photosynthetic activity. The aim of this preliminary experiment was to study the seasonal variation trend in the chlorophyll a fluorescence parameters, Fv/Fm (ratio of variable to maximum fluorescence), photochemical fluorescence quenching (qP), photochemical quantum yield of photosystem II (ΦPS II), fluorescence quenching (qN), and non-photochemical quenching (NPQ), in the moss cushions of Syntrichia ruralis [Hedw.] collected from semi-arid sandy dunes for two slopes i.e., north-east (NE) and south-west (SW) direction. Our results showed a seasonal and small-spatial scale variation trend in all chlorophyll fluorescence parameters. These variations are due to different seasonal conditions referring to different degrees of environmental stress. ΦPS II and qP values were maximum in winter and in spring seasons while Fv/Fm, NPQ and qN were maximum in summer. Based on the different exposition of dunes, the SW slope showed increased values of the effective quantum yield of PS II and qP in comparison to the NE slope due to the optimal microclimate conditions for their expansion. These results may refer to the future changing in diversification and coverage of the Syntrichia species in semi-arid sandy grassland due to more effective metabolism in the beneficial microclimatic conditions.

Can chlorophyll-a fluorescence parameters be used as bio-indicators to distinguish between drought and salinity stress in Tilia cordata Mill?

2018 ◽  
Vol 152 ◽  
pp. 149-157 ◽  
Author(s):  
Hazem M. Kalaji ◽  
Lydia Račková ◽  
Viera Paganová ◽  
Tatiana Swoczyna ◽  
Szymon Rusinowski ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Salinity Stress ◽  
Chlorophyll A Fluorescence ◽  
Tilia Cordata ◽  
Fluorescence Parameters

scholarly journals DAYTIME VARIATIONS OF CHLOROPHYLL A FLUORESCENCE IN PAU D'ALHO SEEDLINGS

2016 ◽  
Vol 40 (6) ◽  
pp. 1023-1030 ◽  
Author(s):  
Marcos Antonio Bacarin ◽  
Emanuela Garbin Martinazzo ◽  
Daniela Cassol ◽  
Antelmo Ralph Falqueto ◽  
Diolina Moura Silva
Keyword(s):  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Photochemical Efficiency ◽  
Photosynthetic Apparatus ◽  
Photosynthetic Active Radiation ◽  
High Radiation ◽  
Active Radiation ◽  
Fluorescence Measurements ◽  
Subsequent Decrease ◽  
Modulated Fluorescence

ABSTRACT Analysis of transient and modulated fluorescence of chlorophyll a were made at one-hour intervals during an eight-hour period starting at 07:30h aiming to study mechanisms of photoprotection against high radiation and temperature in Gallesia integrifolia plants. Seeds were germinated inside plastic pots containing soil as substrate. At 120 days after emergence, chlorophyll fluorescence measurements were performed using Handy-PEA and FMS2 fluorometers. During the course of a day, an increase and a subsequent decrease in temperature and in photosynthetic active radiation were observed until 12:30h. Changes in transient kinetic curves of chlorophyll a fluorescence were identified. This resulted in changes in JIP test parameters. An increase during the period of high radiation and temperature may be stressed in relation to variables related to dissipation flux and appearance of positive -K and -L bands. Considering the modulated fluorescence, high values of non-photochemical quenching coefficients associated with lower values of effective photochemical efficiency of the photosystem II (FV'/ FM') and current photochemical efficiency of PSII (φPSII) could be observed during early morning. This was probably the result of an inhibition of the biochemical phase of photosynthesis. It can be concluded that Gallesia integrifolia decrease its photochemical activity with the increase in the photosynthetic active radiation, demonstrating a photoinhibitory effect under high irradiance conditions, but without irreversible damages to the photosynthetic apparatus.

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