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| Web URL(s): | http://cykx.lzu.edu.cn//EN/article/downloadArticleFile.do?attachType=PDF&id=11098
Last checked: 04/11/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Liu, Yi-kai;
Zheng, Ming-zhu;
Ma, Li;
Liu, Tie-jun;
Yang, You-jun;
Liu, Jin-rong |
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| Author Affiliation: | Yi-kai, Ma, Tie-jun Liu, and Jin-rong Liu: State Key Laboratory of Grassland Agro-ecosystem, College of Agriculture Science and Technology, Lanzhou University, Lanzhou; Zheng and Yang: Yongcheng City Experimental Senior High School of Henan Province, Yongcheng, China |
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| Title: | Effects of regulated deficit irrigation on photosynthetic character perennial ryegrass and the determination for irrigation threshold |
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| Source: | [Caoye Kexue] [Pratacultural Science]. Vol. 32, No. 4, April 15 2015, p. 570-580. |
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| Publishing Information: | [Lanzhou Shi, China]: ["Cao Ye Ke Xue" Bian Jibu] |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Cultivar evaluation; Cultivar variation; Deficit irrigation; Drought stress; Growth analysis; Irrigation rates; Lolium perenne; Photochemical efficiency; Photosynthesis; Photosynthetic rate; Soil water content; Stomatal conductance; Transpiration
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| Cultivar Names: | Premier; Panterra |
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| Abstract/Contents: | "This study was conducted in the greenhouse with perennial ryegrass (Lolium perenne) varieties Premier and Panterra, which are largerly planted in semiarid areas. The experiment with controlled soil water contents was conducted to study the effects of five treatments repeated drying and re-watering on photosynthetic characteristics. The results indicated that variation tendency of two varieties of perennial ryegrass on photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs) and photochemistry activity of PSII (Fv/Fm) decreased with RSWC decreasing. The activities of photosynthetic parameters in different relative soil water content had different variation trends and also had different recovery level after rehydration. When the relative soil water content was the lower irrigation limit which is 50% RSWC caused stress effect to grasses, it will not cause greater harm. While the treatment which lower irrigation limit was 40% RSWC, two varieties of Perennial ryegrass injury were more and more serious. Both of the two grasses at the end of the drought stage showed severe stress (lower irrigation limit of 20% RSWC) injury, and can not recovered rapidly in the physiological function after rehydration. The comparative result between the two grasses: Premier has the better drought resistance than Panterra. These are suggested that Regulated irrigation on Perennial ryegrass has obvious for RSWC, and showed different result between the two grasses: Premier is 40% RSWC; Panterra is 50% RSWC." |
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| Language: | Chinese |
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| References: | 0 |
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| Note: | Abstract also appears in English
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Liu, Y.-k., M.-z. Zheng, L. Ma, T.-j. Liu, Y.-j. Yang, and J.-r. Liu. 2015. Effects of regulated deficit irrigation on photosynthetic character perennial ryegrass and the determination for irrigation threshold. (In Chinese) [Caoye Kexue] [Pratacultural Science]. 32(4):p. 570-580. |
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http://cykx.lzu.edu.cn//EN/article/downloadArticleFile.do?attachType=PDF&id=11098
Last checked: 04/11/2016
Requires: PDF Reader |
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MSU catalog number: b10275836 |
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