HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Field Science Center for Northern Biosphere >
Peer-reviewed Journal Articles, etc >

Assessment of Drought Tolerance of Miscanthus Genotypes through Dry-Down Treatment and Fixed-Soil-Moisture-Content Techniques

Files in This Item:

The file(s) associated with this item can be obtained from the following URL:

Title: Assessment of Drought Tolerance of Miscanthus Genotypes through Dry-Down Treatment and Fixed-Soil-Moisture-Content Techniques
Authors: Weng, Tzu-Ya Browse this author
Nakashima, Taiken Browse this author →KAKEN DB
Villanueva-Morales, Antonio Browse this author
Stewart, J. Ryan Browse this author
Sacks, Erik J. Browse this author
Yamada, Toshihiko Browse this author →KAKEN DB
Keywords: Miscanthus spp
drought tolerance
photosynthetic parameters
bioenergy crops
automated irrigation control
Issue Date: 22-Dec-2021
Publisher: MDPI
Journal Title: Agriculture
Volume: 12
Issue: 1
Start Page: 6
Publisher DOI: 10.3390/agriculture12010006
Abstract: Miscanthus, a high-yielding, warm-season C-4 grass, shows promise as a potential bioenergy crop in temperate regions. However, drought may restrain productivity of most genotypes. In this study, total 29 Miscanthus genotypes of East-Asian origin were screened for drought tolerance with two methods, a dry-down treatment in two locations and a system where soil moisture content (SMC) was maintained at fixed levels using an automatic irrigation system in one location. One genotype, Miscanthus sinensis PMS-285, showed relatively high drought-tolerance capacity under moderate drought stress. Miscanthus sinensis PMS-285, aligned with the M. sinensis 'Yangtze-Qinling' genetic cluster, had relatively high principal component analysis ranking values in both two locations experiments, Hokkaido University and Brigham Young University. Genotypes derived from the 'Yangtze-Qinling' genetic cluster showed relatively greater photosynthetic performance than other genetic clusters, suggesting germplasm from this group could be a potential source of drought-tolerant plant material. Diploid genotypes showed stronger drought tolerance than tetraploid genotypes, suggesting ploidy could be an influential factor for this trait. Of the two methods, the dry-down treatment appears more suitable for selecting drought-tolerant genotypes given that it reflects water-stress conditions in the field. However, the fixed-SMC experiment may be good for understanding the physiological responses of plants to relatively constant water-stress levels.
Type: article
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University