Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field. / Poudyal, Damodar; Rosenqvist, Eva; Ottosen, Carl Otto.

In: Functional Plant Biology, Vol. 46, No. 1, 2019, p. 44-55.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Poudyal, D, Rosenqvist, E & Ottosen, CO 2019, 'Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field', Functional Plant Biology, vol. 46, no. 1, pp. 44-55. https://doi.org/10.1071/FP17317

APA

Poudyal, D., Rosenqvist, E., & Ottosen, C. O. (2019). Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field. Functional Plant Biology, 46(1), 44-55. https://doi.org/10.1071/FP17317

Vancouver

Poudyal D, Rosenqvist E, Ottosen CO. Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field. Functional Plant Biology. 2019;46(1):44-55. https://doi.org/10.1071/FP17317

Author

Poudyal, Damodar ; Rosenqvist, Eva ; Ottosen, Carl Otto. / Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field. In: Functional Plant Biology. 2019 ; Vol. 46, No. 1. pp. 44-55.

Bibtex

@article{e1b5c255cd864b3eaea8aea4aad50504,
title = "Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field",
abstract = "This study aimed to phenotype young tomato (Solanum lycopersicum L.) plants for heat tolerance by measuring Fv/Fm after short-term heat treatments in climate chambers and selected sensitive (low Fv/Fm) and tolerant (high Fv/Fm) cultivars to investigate their in-field performance. Twenty-eight genotypes were phenotyped at 40 : 28°C for 2 days in climate chambers. A second screening (four high Fv/Fm and four low Fv/Fm genotypes) was conducted for 4 days at 38 : 28°C, followed by 5 days' recovery (26 : 20°C). The tolerant genotypes maintained high net photosynthesis (PN) and increased stomatal conductance (gs) at 38° C, allowing better leaf cooling. Sensitive genotypes had lower Fv/Fm and PN at 38°C, and gs increased less than in the tolerant group, reducing leaf cooling. Under controlled conditions, all eight genotypes had the same plant size and pollen viability, but after heat stress, plant size and pollen viability reduced dramatically in the sensitive group. Two tolerant and two sensitive genotypes were grown in the field during a heat wave (38 : 26°C). Tolerant genotypes accumulated more biomass, had a lower heat injury index and higher fruit yield. To our knowledge, this is the first time screening for heat tolerance by Fv/Fm in climate chambers was verified by a field trial under natural heat stress. The differences after heat stress in controlled environments were comparable to those in yield between tolerant and sensitive groups under heat stress in the field. The results suggest that Fv/Fm is effective for early detection of heat tolerance, and screening seedlings for heat sensitivity can speed crop improvement.",
keywords = "Agronomic traits, Chlorophyll fluorescence, Dry weight, Heat injury, Leaf temperature, Physiological markers",
author = "Damodar Poudyal and Eva Rosenqvist and Ottosen, {Carl Otto}",
year = "2019",
doi = "10.1071/FP17317",
language = "English",
volume = "46",
pages = "44--55",
journal = "Australian Journal of Plant Physiology",
issn = "1445-4408",
publisher = "C S I R O Publishing",
number = "1",

}

RIS

TY - JOUR

T1 - Phenotyping from lab to field -tomato lines screened for heat stress using Fv/Fm maintain high fruit yield during thermal stress in the field

AU - Poudyal, Damodar

AU - Rosenqvist, Eva

AU - Ottosen, Carl Otto

PY - 2019

Y1 - 2019

N2 - This study aimed to phenotype young tomato (Solanum lycopersicum L.) plants for heat tolerance by measuring Fv/Fm after short-term heat treatments in climate chambers and selected sensitive (low Fv/Fm) and tolerant (high Fv/Fm) cultivars to investigate their in-field performance. Twenty-eight genotypes were phenotyped at 40 : 28°C for 2 days in climate chambers. A second screening (four high Fv/Fm and four low Fv/Fm genotypes) was conducted for 4 days at 38 : 28°C, followed by 5 days' recovery (26 : 20°C). The tolerant genotypes maintained high net photosynthesis (PN) and increased stomatal conductance (gs) at 38° C, allowing better leaf cooling. Sensitive genotypes had lower Fv/Fm and PN at 38°C, and gs increased less than in the tolerant group, reducing leaf cooling. Under controlled conditions, all eight genotypes had the same plant size and pollen viability, but after heat stress, plant size and pollen viability reduced dramatically in the sensitive group. Two tolerant and two sensitive genotypes were grown in the field during a heat wave (38 : 26°C). Tolerant genotypes accumulated more biomass, had a lower heat injury index and higher fruit yield. To our knowledge, this is the first time screening for heat tolerance by Fv/Fm in climate chambers was verified by a field trial under natural heat stress. The differences after heat stress in controlled environments were comparable to those in yield between tolerant and sensitive groups under heat stress in the field. The results suggest that Fv/Fm is effective for early detection of heat tolerance, and screening seedlings for heat sensitivity can speed crop improvement.

AB - This study aimed to phenotype young tomato (Solanum lycopersicum L.) plants for heat tolerance by measuring Fv/Fm after short-term heat treatments in climate chambers and selected sensitive (low Fv/Fm) and tolerant (high Fv/Fm) cultivars to investigate their in-field performance. Twenty-eight genotypes were phenotyped at 40 : 28°C for 2 days in climate chambers. A second screening (four high Fv/Fm and four low Fv/Fm genotypes) was conducted for 4 days at 38 : 28°C, followed by 5 days' recovery (26 : 20°C). The tolerant genotypes maintained high net photosynthesis (PN) and increased stomatal conductance (gs) at 38° C, allowing better leaf cooling. Sensitive genotypes had lower Fv/Fm and PN at 38°C, and gs increased less than in the tolerant group, reducing leaf cooling. Under controlled conditions, all eight genotypes had the same plant size and pollen viability, but after heat stress, plant size and pollen viability reduced dramatically in the sensitive group. Two tolerant and two sensitive genotypes were grown in the field during a heat wave (38 : 26°C). Tolerant genotypes accumulated more biomass, had a lower heat injury index and higher fruit yield. To our knowledge, this is the first time screening for heat tolerance by Fv/Fm in climate chambers was verified by a field trial under natural heat stress. The differences after heat stress in controlled environments were comparable to those in yield between tolerant and sensitive groups under heat stress in the field. The results suggest that Fv/Fm is effective for early detection of heat tolerance, and screening seedlings for heat sensitivity can speed crop improvement.

KW - Agronomic traits

KW - Chlorophyll fluorescence

KW - Dry weight

KW - Heat injury

KW - Leaf temperature

KW - Physiological markers

U2 - 10.1071/FP17317

DO - 10.1071/FP17317

M3 - Journal article

C2 - 30939257

AN - SCOPUS:85055523509

VL - 46

SP - 44

EP - 55

JO - Australian Journal of Plant Physiology

JF - Australian Journal of Plant Physiology

SN - 1445-4408

IS - 1

ER -

ID: 213627505