Mukamuhirwa, Alphonsine and Persson Hovmalm, Helena and Bolinsson, Hans and Ortiz Rios, Rodomiro Octavio and Nyamangyoku, Obedi and Johansson, Eva
(2019).
Concurrent Drought and Temperature Stress in Rice—A Possible Result of the Predicted Climate Change: Effects on Yield Attributes, Eating Characteristics, and Health Promoting Compounds.
International journal of environmental research and public health. 16
, 1-17
[Research article]
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Available under License Creative Commons Attribution. 1MB |
Official URL: https://www.mdpi.com/1660-4601/16/6/1043
Abstract
Despite the likely increasing co-occurrence of drought and heat stress, not least in equatorial regions, due to climate change, little is known about the combinational effect of these stresses on rice productivity and quality. This study evaluated the impact of simultaneous drought and temperature stress on growth, grain yield, and quality characteristics of seven rice cultivars from Rwanda, grown in climate chambers. Two temperature ranges—23/26 ◦C night/day and 27/30 ◦C night/day—together with single or repeated drought treatments, were applied during various plant developmental stages. Plant development and yield were highly influenced by drought, while genotype impacted the quality characteristics. The combination of a high temperature with drought at the seedling and tillering stages resulted in zero panicles for all evaluated cultivars. The cultivar ‘Intsindagirabigega’ was most tolerant to drought, while ‘Zong geng’ was the most sensitive. A “stress memory” was recorded for ‘Mpembuke’ and ‘Ndamirabahinzi’, and these cultivars also had a high content of bioactive compounds, while ’Jyambere’ showed a high total protein content. Thus, climate change may severely impact rice production. The exploitation of genetic diversity to breed novel rice cultivars that combine drought and heat stress tolerance with high nutritional values is a must to maintain food security.
Authors/Creators: | Mukamuhirwa, Alphonsine and Persson Hovmalm, Helena and Bolinsson, Hans and Ortiz Rios, Rodomiro Octavio and Nyamangyoku, Obedi and Johansson, Eva | ||||
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Title: | Concurrent Drought and Temperature Stress in Rice—A Possible Result of the Predicted Climate Change: Effects on Yield Attributes, Eating Characteristics, and Health Promoting Compounds | ||||
Series Name/Journal: | International journal of environmental research and public health | ||||
Year of publishing : | 2019 | ||||
Volume: | 16 | ||||
Page range: | 1-17 | ||||
Number of Pages: | 17 | ||||
Publisher: | MDPI | ||||
ISSN: | 1660-4601 | ||||
Language: | English | ||||
Publication Type: | Research article | ||||
Refereed: | Yes | ||||
Article category: | Scientific peer reviewed | ||||
Version: | Published version | ||||
Copyright: | Creative Commons: Attribution 4.0 | ||||
Full Text Status: | Public | ||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use | ||||
Keywords: | Oryza sativa, grain yield, quality, bioactive compounds, drought, temperature | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-5315 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5315 | ||||
Additional ID: |
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ID Code: | 16027 | ||||
Faculty: | LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap | ||||
Department: | (LTJ, LTV) > Department of Plant Breeding (from 130101) | ||||
Deposited By: | SLUpub Connector | ||||
Deposited On: | 25 Mar 2019 13:26 | ||||
Metadata Last Modified: | 31 Mar 2019 13:46 |
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