Moderate Drought Stress Affected Root Growth and Grain Yield in Old, Modern and Newly Released Cultivars of Winter Wheat

Frontiers in Plant Science
Yan FangYinglong Chen

Abstract

To determine root growth and grain yield of winter wheat (Triticum aestivum L) under moderate drought stress, a nursery experiment and a field trial were conducted with or without water stress using three representative cultivars released in different years: CW134 (old landrace), CH58 (modern cultivar) and CH1 (new release). In the nursery experiment, plants were grown in soil-filled rhizoboxes under moderate drought (MD, 55% of field capacity) or well-watered (WW, 85% of field capacity) conditions. In the field trial, plots were either rainfed (moderate drought stress) or irrigated with 30 mm of water at each of stem elongation, booting and anthesis stages (irrigated). Compared to drought stress, grain yields increased under sufficient water supply in all cultivars, particular the newly released cultivar CH1 with 70% increase in the nursery and 23% in the field. When well-watered (nursery) or irrigated (field), CH1 had the highest grain yields compared to the other two cultivars, but produced similar yield to the modern cultivar (CH58) under water-stressed (nursery) or rainfed (field) conditions. When exposed to drought stress, CW134 had the highest topsoil root dry mass in topsoil but lowest in subsoil among the cultivars at ...Continue Reading

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Citations

Apr 11, 2019·Antioxidants·Miriam LaxaKarl-Josef Dietz
Feb 8, 2020·Plant Biotechnology Journal·Dante F PlacidoHarkamal Walia
Mar 17, 2018·Frontiers in Plant Science·Xiulin WangDong Jiang
Apr 30, 2020·BMC Plant Biology·Yinglong ChenKadambot H M Siddique
Jan 11, 2020·Frontiers in Microbiology·Ming LangJunling Zhang
Sep 26, 2020·Frontiers in Plant Science·Victoria Figueroa-BustosKadambot H M Siddique
Apr 27, 2019·Frontiers in Plant Science·Samir AlahmadLee T Hickey
Oct 24, 2020·Journal of Experimental Botany·Md Nurealam SiddiquiAgim Ballvora
Nov 8, 2020·International Journal of Molecular Sciences·Vishvanathan MarthandanJegadeesan Ramalingam
Apr 24, 2021·Plant Phenomics : a Science Partner Journal·Meiyan ShuYuntao Ma
May 11, 2021·Plant Physiology and Biochemistry : PPB·Jiakun YanXiaolin Wang
May 29, 2021·Plant Physiology and Biochemistry : PPB·Mushtaq Ahmad MalikIrfan Rashid
Jul 1, 2021·Plant, Cell & Environment·Nícolas Zendonadi Dos SantosOnno Muller
Nov 26, 2021·Journal of the Science of Food and Agriculture·Pu-Fang LiYou-Cai Xiong

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Methods Mentioned

BETA
environmental stresses

Software Mentioned

Statistical Analysis System ( SAS

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