Effects of different water stress levels on biomass yield and agronomic traits of switchgrass (Panicum virgatum L.) cultivars under arid and semi-arid conditions
Open accessAbstract
This study was conducted to determine the effects of different water stress levels on biomass yield, plant height, number of stalks per unit area, single stalk weight, yield reduction ratios and irrigation water use efficiency (IWUE) values of switchgrass (Panicum virgatum L.) cultivars under Central Anatolia conditions. Experiments were conducted for two years (2016 – 2017) in randomized blocks – split plots experimental design with three replications under Konya ecological conditions. Six switchgrass cultivars (Shelter, Alamo, Cave in rock, Shawnee, Kanlow and Trailblazer) and five different irrigation treatments (water stress levels: S1: Full irrigation; S2: 75% of full irrigation; S3: 50% of full irrigation; S4: 25% of full irrigation and S5: Rain-fed without irrigation) were used in present experiments. Kanlow, Alamo and Trailblazer cultivars had greater biomass yields than the other cultivars in all water stress treatments. Under different water stress treatments, dry biomass yields varied between 48300 kg ha-1 (S5- Cave in rock) and 25120 kg ha-1 (S1- Kanlow); plant heights varied between 70 cm (S5) and 180 cm (S1); number of stalks per unit area (meter) varied between 221 (S5) and 356 (S1); stalk weights varied between 0.56 g (S5) and 2.25 g (S1). IWUE was calculated as 5.7 kg m-3 for the first harvest and as 2.1 kg m-3 for the second harvest. Considering the biomass yields from single harvest of rain-fed treatments (S5) and two harvests of the other irrigation treatments (S1-S4), IWUE values and water deficits of the region, it was concluded that single harvest was more suitable for switchgrass plants grown under ecological conditions
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Bai, J., Luo, L., Li, A., Lai, X., Zhang, X., Yu, Y., Wang, H., Wu, N., & Zhang, L. (2022) · Life · doi:10.3390/life12122105 · Cited by 24 · see citing works
- Authors
- GÖNÜLAL, E., SOYLU, S., & ŞAHİN, M.
- Affiliations
- Bahri Dagdas International Agriculture Research Institute, Konya-Turkey
- Selçuk University (TR)
- SELCUK UNIVERSITY, FACULTY OF AGRICULTURE, DEPARTMENT OF AGRICULTURAL STRUCTURES AND IRRIGATION
- Corresponding author
- GÖNÜLAL, Erdal
- Venue
- Turkish Journal Of Field Crops
- Publisher
- Turkish Journal of Field Crops
- Published
- 2021-06-29
- Volume
- 26
- Issue
- 1
- Pages
- 25-34
- ISSN
- 1301-1111 (ISSN-L)
- OpenAlex
- W3165713880
- Cited by
- 5
- References
- 18
- Citations by year
- 2026: 1 · 2025: 1 · 2023: 2 · 2022: 1
- FWCI
- 0.86
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Locations
- Turkish Journal Of Field Crops (publishedVersion)
- DergiPark (Istanbul University) (submittedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Irrigation Practices and Water Management
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Agricultural Productivity and Crop Improvement
- Keywords
- switchgrass, water stress, drought tolerance, biomass yield, irrigation water use efficiency, rainfed agriculture, harvest frequency, agronomic traits, Central Anatolia
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