نتایج جستجو برای: leymus tianschanicus

تعداد نتایج: 316  

2012
Jushan Liu Ling Wang Deli Wang Stephen P. Bonser Fang Sun Yifa Zhou Ying Gao Xing Teng

BACKGROUND Plants and herbivores can evolve beneficial interactions. Growth factors found in animal saliva are probably key factors underlying plant compensatory responses to herbivory. However, there is still a lack of knowledge about how animal saliva interacts with herbivory intensities and how saliva can mobilize photosynthate reserves in damaged plants. METHODOLOGY/PRINCIPAL FINDINGS The...

2006
Bingrui Jia Guangsheng Zhou Fengyu Wang Yuhui Wang Wenping Yuan Li Zhou

Based on the enclosed chamber method, soil respiration measurements of Leymus chinensis populations with four planting densities (30, 60, 90 and 120 plants/0.25 m) and blank control were made from July 31 to November 24, 2003. In terms of soil respiration rates of L. chinensis populations with four planting densities and their corresponding root biomass, linear regressive equations between soil...

Journal: :Plant and Soil 2021

Background Increasing nitrogen (N) deposition has altered plant communities globally, however the changes in species abundances with short-term vs. long-term N enrichment remains unclear. Stoichiometric homeostasis, quantified by homoeostatic regulation coefficient (H) is a key trait predictive of dominance and responses to global changes. It unknown whether H over time, thereby affecting addit...

2014
Xiaoyu Li Junfeng Wang Jixiang Lin Ying Wang Chunsheng Mu

Leymus chinensis has extensive ecological adaptability and can grow well in saline-alkaline soils. The knowledge about tolerance mechanisms of L. chinensis could be base for utilization of saline-alkaline soils and grassland restoration and rebuilding. Two neutral salts (NaCl : Na₂SO₄ = 9 : 1) and two alkaline salts (NaHCO₃ : Na₂CO₃ = 9 : 1) with concentration of 0, 100, and 200 mmol/L were use...

2013
Shuangyan Chen Xin Huang Xueqing Yan Ye Liang Yuezhu Wang Xiaofeng Li Xianjun Peng Xingyong Ma Lexin Zhang Yueyue Cai Tian Ma Liqin Cheng Dongmei Qi Huajun Zheng Xiaohan Yang Xiaoxia Li Gongshe Liu

BACKGROUND Sheepgrass [Leymus chinensis (Trin.) Tzvel.] is an important perennial forage grass across the Eurasian Steppe and is known for its adaptability to various environmental conditions. However, insufficient data resources in public databases for sheepgrass limited our understanding of the mechanism of environmental adaptations, gene discovery and molecular marker development. RESULTS ...

2016
Shan Yuan Linna Ma Chengyuan Guo Renzhong Wang

Elucidating the driving factors among-population divergence is an important task in evolutionary biology, however the relative contribution from natural selection and neutral genetic differentiation has been less debated. A manipulation experiment was conducted to examine whether the phenotypic divergence of Leymus chinensis depended on climate variations or genetic differentiations at 18 wild ...

Journal: :Annals of botany 2006
Xue-Hua Ye Fei-Hai Yu Ming Dong

BACKGROUND AND AIMS A phalanx growth form enables clonal plants to make better use of resource-rich patches, whereas a guerrilla growth form provides them with opportunities to escape from resource-poor sites. Leymus secalinus produces both spreading (guerrilla form) and clumping ramets (phalanx form). Here, the hypothesis that a trade-off between the two growth forms in L. secalinus exists und...

2016
Cheng Zhu Yiping Ma Honghui Wu Tao Sun Kimberly J. La Pierre Zewei Sun Qiang Yu

Nitrogen (N) deposition has been steadily increasing for decades, with consequences for soil respiration. However, we have a limited understanding of how soil respiration responds to N availability. Here, we investigated the soil respiration responses to low and high levels of N addition (0.4 mol N m(-2) yr(-1) vs 1.6 mol N m(-2) yr(-1)) over a two-year period in a semiarid Leymus chinensis gra...

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