Effect of Early-Stage Regulated Deficit Irrigation on Stem Lodging Resistance, Leaf Photosynthesis, Root Respiration and Yield Stability of Winter Wheat under Post-Anthesis Water Stress Conditions

Irrigation and DrainageVolume 65, Issue 5 p. 673-681 Research Article Effect of Early-Stage Regulated Deficit Irrigation on Stem Lodging Resistance, Leaf Photosynthesis, Root Respiration and Yield Stability of Winter Wheat under Post-Anthesis Water Stress Conditions† Shou-Chen Ma, Corresponding Author Shou-Chen Ma mashouchen@126.com Field Scientific Observation and Research Base of Ministry of Land and Resources, School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, Henan Province, China Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Ministry of Water Resources/Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi Province, ChinaCorrespondence to: Dr Shou-Chen Ma, Field Scientific Observation and Research Base of Ministry of Land and Resources, School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China. E-mail: mashouchen@126.comSearch for more papers by this authorAi-Wang Duan, Ai-Wang Duan Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this authorShou-Tian Ma, Shou-Tian Ma Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this authorShen-Jiao Yang, Shen-Jiao Yang Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this author Shou-Chen Ma, Corresponding Author Shou-Chen Ma mashouchen@126.com Field Scientific Observation and Research Base of Ministry of Land and Resources, School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, Henan Province, China Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Ministry of Water Resources/Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi Province, ChinaCorrespondence to: Dr Shou-Chen Ma, Field Scientific Observation and Research Base of Ministry of Land and Resources, School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China. E-mail: mashouchen@126.comSearch for more papers by this authorAi-Wang Duan, Ai-Wang Duan Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this authorShou-Tian Ma, Shou-Tian Ma Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this authorShen-Jiao Yang, Shen-Jiao Yang Ministry of Agriculture Key Lab for Crop Water Requirement and Regulation, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, Henan Province, ChinaSearch for more papers by this author First published: 23 May 2016 https://doi.org/10.1002/ird.2022Citations: 11 †Effet de l'irrigation déficitaire sur la résistance à la verse, la photosynthèse des feuilles, la respiration des racines et la stabilité du rendement du blé d'hiver sous conditions de stress hydrique post-anthèse. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstracten A field micro-plot experiment was conducted to study the effect of early-stage regulated deficit irrigation (RDI) on the stress tolerance of winter wheat in the late growth stage. Plants were subjected to two RDI treatments: proper water deficits (45-55% field water capacity) were imposed during tillering—the beginning of the spring growth stage (T1) and during the beginning of spring growth to the end of the stem elongation stage (T2). The control plants (CK) were maintained with an adequate water supply until anthesis. The results showed that T1 and T2 shortened the length of the first and second internodes, and increased their weight per unit length, and thereby enhanced stem lodging resistance. Although post-anthesis drought and waterlogging lowered leaf photosynthetic rate and root respiration rate, the two RDI treatments improved significantly compared to the control. The two RDI treatments had no significant effects on grain yield under post-anthesis well-watered conditions but increased grain yield and yield stability of wheat under post-anthesis water stress. In addition, T1 and T2 significantly reduced water consumption and increased water productivity (WP) of wheat compared to the control. In summary, this study shows that appropriate RDI at early growth stages increased grain yield and yield stability through improving population characteristics, root respiration and photosynthesis of plants under post-anthesis water stress conditions. Copyright © 2016 John Wiley & Sons, Ltd. Résuméfr Une expérience de terrain en micro-parcelle a été menée pour étudier l'effet du déficit d'irrigation (RDI) au stade précoce du blé d'hiver sur sa tolérance au stress en fin de la croissance. Les plantes ont été soumises à deux traitements de RDI: les déficits en eau ont été imposés du tallage au stade de développement de la pousse (T1), et de ce stade à la fin du stade tige d'allongement de la tige (T2). Les plantes de contrôle (CK) ont eu un approvisionnement en eau adéquat jusqu'à la floraison. Les résultats ont montré que T1 et T2 raccourcissent la longueur des premier et deuxième inter-nœuds, et augmentent leur poids par unité de longueur, et, par voie de conséquence, augmentent la résistance de la tige. Bien que la sécheresse et l'engorgement post-anthèse aient abaissé le taux de photosynthèse des feuilles et le taux de respiration des racines, les deux traitements de RDI ont montré une amélioration considérable du rendement par rapport au contrôle. Les deux traitements RDI n'ont pas montré d'effet significatif sur le rendement en grain en cas de post-anthèse correctement arrosée, alors que ce même rendement a augmenté et avec une meilleure stabilité dans le cas de post-anthèse hydriquement stressée. En outre, T1 et T2 se sont accompagnés d'une réduction significative de la consommation en eau du blé et de l'augmentation de la productivité de l'eau (WP). En résumé, cette étude montre qu'une RDI appropriée au début de croissance a augmenté le rendement en grain et la stabilité du rendement grâce à l'amélioration des caractéristiques de la population, la respiration des racines et la photosynthèse des plantes sous conditions de stress hydrique post-anthèse. Copyright © 2016 John Wiley & Sons, Ltd. Citing Literature Volume65, Issue5December 2016Pages 673-681 RelatedInformation