Management of drought stress in field phenotyping
In agriculture, the term drought refers to a meteorological condition in which the amount of water available through rainfall and/or irrigation is insufficient to meet the crop needs for optimal growth and development. This eventually affects overall productivity. Rainfed crops grown during the summer-rainy season in the tropics occasionally face extreme weather conditions. These extreme weather conditions translate into various abiotic stresses, such as intermittent/contingent drought, which constitutes one of the key abiotic constraints for crop production in many parts of the world. The erratic distribution pattern of rain in the tropics due to inter-annual variability occasionally causes prolonged dry spells at different crop growth stages, which results in poor crop growth and development and eventually poor yields. Crop breeding programs targeting drought tolerance using conventional and/or molecular breeding approaches rely heavily on high-quality phenotypic data generated under drought stress. One of the key prerequisites for generating a quality drought phenotyping data is accuracy and precision in managing drought stress in field phenotyping, so that genotypic variability could be expressed and precisely identified. Applying drought stress at required intensity with uniformity and precisely at targeted crop stage has been a major challenge, especially under field conditions, as several weather factors interact and affects the stress development and its intensity. Occasionally, the managed drought stress trials ended with either low or too severe stress, which is often realized after completing the trial. In this manual, the quantitative approach of managing drought stress with required intensity at targeted crop stage (for example – flowering stage), and with uniformity over space (across plot) and duration is discussed. This manual is developed for field crop breeders, crop physiologists, agronomists, masters or Ph.D. students and field technicians who are working on phenotyping and/or selection for drought stress tolerance in field crops.
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Format: | Other biblioteca |
Language: | English |
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CIMMYT
2019
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, MAIZE, PHENOTYPES, CROP MANAGEMENT, DROUGHT STRESS, IRRIGATION SCHEDULING, ABIOTIC STRESS, |
Online Access: | https://hdl.handle.net/10883/19998 |
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dig-cimmyt-10883-199982021-03-31T14:21:15Z Management of drought stress in field phenotyping Zaidi, P.H. AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS In agriculture, the term drought refers to a meteorological condition in which the amount of water available through rainfall and/or irrigation is insufficient to meet the crop needs for optimal growth and development. This eventually affects overall productivity. Rainfed crops grown during the summer-rainy season in the tropics occasionally face extreme weather conditions. These extreme weather conditions translate into various abiotic stresses, such as intermittent/contingent drought, which constitutes one of the key abiotic constraints for crop production in many parts of the world. The erratic distribution pattern of rain in the tropics due to inter-annual variability occasionally causes prolonged dry spells at different crop growth stages, which results in poor crop growth and development and eventually poor yields. Crop breeding programs targeting drought tolerance using conventional and/or molecular breeding approaches rely heavily on high-quality phenotypic data generated under drought stress. One of the key prerequisites for generating a quality drought phenotyping data is accuracy and precision in managing drought stress in field phenotyping, so that genotypic variability could be expressed and precisely identified. Applying drought stress at required intensity with uniformity and precisely at targeted crop stage has been a major challenge, especially under field conditions, as several weather factors interact and affects the stress development and its intensity. Occasionally, the managed drought stress trials ended with either low or too severe stress, which is often realized after completing the trial. In this manual, the quantitative approach of managing drought stress with required intensity at targeted crop stage (for example – flowering stage), and with uniformity over space (across plot) and duration is discussed. This manual is developed for field crop breeders, crop physiologists, agronomists, masters or Ph.D. students and field technicians who are working on phenotyping and/or selection for drought stress tolerance in field crops. v, 31 pages 2019-02-19T01:05:12Z 2019-02-19T01:05:12Z 2019 Other Published Version https://hdl.handle.net/10883/19998 English CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. Open Access PDF Mexico, DF (Mexico) CIMMYT |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS Zaidi, P.H. Management of drought stress in field phenotyping |
description |
In agriculture, the term drought refers to a meteorological condition in which the amount of water available through rainfall and/or irrigation is insufficient to meet the crop needs for optimal growth and development. This eventually affects overall productivity. Rainfed crops grown during the summer-rainy season in the tropics occasionally face extreme weather conditions. These extreme weather conditions translate into various abiotic stresses, such as intermittent/contingent drought, which constitutes one of the key abiotic constraints for crop production in many parts of the world. The erratic distribution pattern of rain in the tropics due to inter-annual variability occasionally causes prolonged dry spells at different crop growth stages, which results in poor crop growth and development and eventually poor yields. Crop breeding programs targeting drought tolerance using conventional and/or molecular breeding approaches rely heavily on high-quality phenotypic data generated under drought stress. One of the key prerequisites for generating a quality drought phenotyping data is accuracy and precision in managing drought stress in field phenotyping, so that genotypic variability could be expressed and precisely identified. Applying drought stress at required intensity with uniformity and precisely at targeted crop stage has been a major challenge, especially under field conditions, as several weather factors interact and affects the stress development and its intensity. Occasionally, the managed drought stress trials ended with either low or too severe stress, which is often realized after completing the trial. In this manual, the quantitative approach of managing drought stress with required intensity at targeted crop stage (for example – flowering stage), and with uniformity over space (across plot) and duration is discussed. This manual is developed for field crop breeders, crop physiologists, agronomists, masters or Ph.D. students and field technicians who are working on phenotyping and/or selection for drought stress tolerance in field crops. |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY MAIZE PHENOTYPES CROP MANAGEMENT DROUGHT STRESS IRRIGATION SCHEDULING ABIOTIC STRESS |
author |
Zaidi, P.H. |
author_facet |
Zaidi, P.H. |
author_sort |
Zaidi, P.H. |
title |
Management of drought stress in field phenotyping |
title_short |
Management of drought stress in field phenotyping |
title_full |
Management of drought stress in field phenotyping |
title_fullStr |
Management of drought stress in field phenotyping |
title_full_unstemmed |
Management of drought stress in field phenotyping |
title_sort |
management of drought stress in field phenotyping |
publisher |
CIMMYT |
publishDate |
2019 |
url |
https://hdl.handle.net/10883/19998 |
work_keys_str_mv |
AT zaidiph managementofdroughtstressinfieldphenotyping |
_version_ |
1756086799227158528 |