The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance
Lodging is a major yield-reducing factor in rice systems, particularly under intensified cultivation using high-yielding cultivars. It is usually triggered by rainstorms during grain filling. The study of natural lodging is difficult due to unpredictable weather. Proxy traits for lodging resistance such as stem morphology and breaking moment have limited validity because lodging is complex. We present a new mobile, low-cost field methodology called Blaster. It uses a wind turbine creating a 1 m wide and 6 m deep wind path in the field with wind speed adjustable to 30, 45 and 60 km h−1. Water injected into the air stream provides for wetting of the crop. A measurement cycle takes ca. 10 min per plot. The lodging response of 20, mostly high-yielding but diverse rice genotypes was studied in 2013, 2014 and 2015 under irrigated transplanted conditions in the Philippines. Genotypic responses were reproducible between seasons and were predictive of natural lodging observed in the wet season for a subset of 8 genotypes. Cultivars PARAO and CT 5805 from Latin America consistently stood out for superior lodging resistance. Across genotypes, morphological traits such as plant height, biomass or stem diameter were not or poorly predictive of lodging induced by Blaster. The best single proxy trait, stem-base bending moment at breakage (BM), explained about 40% of Blaster-induced lodging, and the Lodging Resistance Index composed of plant height, wet biomass and BM explained about 70%. We propose that Blaster is a reliable tool to evaluate crop lodging resistance as affected by genotype, cultural practices or season.
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Subjects: | F50 - Anatomie et morphologie des plantes, F30 - Génétique et amélioration des plantes, Oryza sativa, tige, résistance au vent, propriété physicochimique, génotype, matériel agricole, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_7390, http://aims.fao.org/aos/agrovoc/c_8396, http://aims.fao.org/aos/agrovoc/c_1521, http://aims.fao.org/aos/agrovoc/c_3225, http://aims.fao.org/aos/agrovoc/c_25753, http://aims.fao.org/aos/agrovoc/c_5783, |
Online Access: | http://agritrop.cirad.fr/598898/ http://agritrop.cirad.fr/598898/7/ID598898.pdf |
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dig-cirad-fr-5988982024-01-29T03:40:49Z http://agritrop.cirad.fr/598898/ http://agritrop.cirad.fr/598898/ The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance. Shrestha Suchit, Laza Ma. Rebecca, Mendez Kharla V., Bhosale Sankalp, Dingkuhn Michael. 2020. Field Crops Research, 245:107663, 12 p.https://doi.org/10.1016/j.fcr.2019.107663 <https://doi.org/10.1016/j.fcr.2019.107663> The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance Shrestha, Suchit Laza, Ma. Rebecca Mendez, Kharla V. Bhosale, Sankalp Dingkuhn, Michael eng 2020 Field Crops Research F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 Philippines http://aims.fao.org/aos/agrovoc/c_5783 Lodging is a major yield-reducing factor in rice systems, particularly under intensified cultivation using high-yielding cultivars. It is usually triggered by rainstorms during grain filling. The study of natural lodging is difficult due to unpredictable weather. Proxy traits for lodging resistance such as stem morphology and breaking moment have limited validity because lodging is complex. We present a new mobile, low-cost field methodology called Blaster. It uses a wind turbine creating a 1 m wide and 6 m deep wind path in the field with wind speed adjustable to 30, 45 and 60 km h−1. Water injected into the air stream provides for wetting of the crop. A measurement cycle takes ca. 10 min per plot. The lodging response of 20, mostly high-yielding but diverse rice genotypes was studied in 2013, 2014 and 2015 under irrigated transplanted conditions in the Philippines. Genotypic responses were reproducible between seasons and were predictive of natural lodging observed in the wet season for a subset of 8 genotypes. Cultivars PARAO and CT 5805 from Latin America consistently stood out for superior lodging resistance. Across genotypes, morphological traits such as plant height, biomass or stem diameter were not or poorly predictive of lodging induced by Blaster. The best single proxy trait, stem-base bending moment at breakage (BM), explained about 40% of Blaster-induced lodging, and the Lodging Resistance Index composed of plant height, wet biomass and BM explained about 70%. We propose that Blaster is a reliable tool to evaluate crop lodging resistance as affected by genotype, cultural practices or season. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/acceptedVersion http://agritrop.cirad.fr/598898/7/ID598898.pdf text cc_by_nc info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/4.0/ https://doi.org/10.1016/j.fcr.2019.107663 10.1016/j.fcr.2019.107663 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2019.107663 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.fcr.2019.107663 |
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F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 http://aims.fao.org/aos/agrovoc/c_5783 F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 http://aims.fao.org/aos/agrovoc/c_5783 |
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F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 http://aims.fao.org/aos/agrovoc/c_5783 F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 http://aims.fao.org/aos/agrovoc/c_5783 Shrestha, Suchit Laza, Ma. Rebecca Mendez, Kharla V. Bhosale, Sankalp Dingkuhn, Michael The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
description |
Lodging is a major yield-reducing factor in rice systems, particularly under intensified cultivation using high-yielding cultivars. It is usually triggered by rainstorms during grain filling. The study of natural lodging is difficult due to unpredictable weather. Proxy traits for lodging resistance such as stem morphology and breaking moment have limited validity because lodging is complex. We present a new mobile, low-cost field methodology called Blaster. It uses a wind turbine creating a 1 m wide and 6 m deep wind path in the field with wind speed adjustable to 30, 45 and 60 km h−1. Water injected into the air stream provides for wetting of the crop. A measurement cycle takes ca. 10 min per plot. The lodging response of 20, mostly high-yielding but diverse rice genotypes was studied in 2013, 2014 and 2015 under irrigated transplanted conditions in the Philippines. Genotypic responses were reproducible between seasons and were predictive of natural lodging observed in the wet season for a subset of 8 genotypes. Cultivars PARAO and CT 5805 from Latin America consistently stood out for superior lodging resistance. Across genotypes, morphological traits such as plant height, biomass or stem diameter were not or poorly predictive of lodging induced by Blaster. The best single proxy trait, stem-base bending moment at breakage (BM), explained about 40% of Blaster-induced lodging, and the Lodging Resistance Index composed of plant height, wet biomass and BM explained about 70%. We propose that Blaster is a reliable tool to evaluate crop lodging resistance as affected by genotype, cultural practices or season. |
format |
article |
topic_facet |
F50 - Anatomie et morphologie des plantes F30 - Génétique et amélioration des plantes Oryza sativa tige résistance au vent propriété physicochimique génotype matériel agricole http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_7390 http://aims.fao.org/aos/agrovoc/c_8396 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_25753 http://aims.fao.org/aos/agrovoc/c_5783 |
author |
Shrestha, Suchit Laza, Ma. Rebecca Mendez, Kharla V. Bhosale, Sankalp Dingkuhn, Michael |
author_facet |
Shrestha, Suchit Laza, Ma. Rebecca Mendez, Kharla V. Bhosale, Sankalp Dingkuhn, Michael |
author_sort |
Shrestha, Suchit |
title |
The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
title_short |
The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
title_full |
The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
title_fullStr |
The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
title_full_unstemmed |
The blaster: A methodology to induce rice lodging at plot scale to study lodging resistance |
title_sort |
blaster: a methodology to induce rice lodging at plot scale to study lodging resistance |
url |
http://agritrop.cirad.fr/598898/ http://agritrop.cirad.fr/598898/7/ID598898.pdf |
work_keys_str_mv |
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