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| 1 | Effects of cotton field management practices on soil CO2 emission and C balance in an arid region of Northwest China显示文摘Changes in both soil organic C storage and soil respiration in farmland ecosystems may affect atmospheric CO2 concentration and global C cycle. The objective of this field experiment was to study the effects of three crop field management practices on soil CO2 emission and C balance in a cotton field in an arid region of Northwest China. The three management practices were irrigation methods(drip and flood), stubble managements(stubble-incorporated and stubble-removed) and fertilizer amendments(no fertilizer(CK), chicken manure(OM), inorganic N, P and K fertilizer(NPK), and inorganic fertilizer plus chicken manure(NPK+OM)). The results showed that within the C pool range, soil CO2 emission during the whole growing season was higher in the drip irrigation treatment than in the corresponding flood irrigation treatment, while soil organic C concentration was larger in the flood irrigation treatment than in the corresponding drip irrigation treatment. Furthermore, soil CO2 emission and organic C concentration were all higher in the stubble-incorporated treatment than in the corresponding stubble-removed treatment, and larger in the NPK+OM treatment than in the other three fertilizer amendments within the C pool range. The combination of flood irrigation, stubble incorporation and application of either NPK+OM or OM increased soil organic C concentration in the 0-60 cm soil depth. Calculation of net ecosystem productivity(NEP) under different management practices indicated that the combination of drip irrigation, stubble incorporation and NPK+OM increased the size of the C pool most, followed by the combination of drip irrigation, stubble incorporation and NPK. In conclusion, management practices have significant impacts on soil CO2 emission, organic C concentration and C balance in cotton fields. Consequently, appropriate management practices, such as the combination of drip irrigation, stubble incorporation, and either NPK+OM or NPK could increase soil C storage in cotton fields of Northwest China. | QianBing ZHANG Ling YANG ZhenZhu XU YaLi ZHANG HongHai LUO Jin WANG WangFeng ZHANG | 2014 | Journal of Arid Land2014,6,4: | 8 |
| 2 | Relationship between plant canopy characteristics and photosynthetic productivity in diverse cultivars of cotton(Gossypium hirsutum L.)显示文摘Genotype and plant type affect photosynthetic production by changing the canopy structure in crops.To analyze the mechanism of action of heterosis and plant type on canopy structure in cotton(Gossypium hirsutum L.),we had selected two cotton hybrids(Shiza 2,Xinluzao 43) and two conventional varieties(Xinluzao 13,Xinluzao 33) with different plant types in this experiment.We studied canopy characteristics and their correlation with photosynthesis in populations of different genotypes and plant types during yield formation in Xinjiang,China.Canopy characteristics including leaf area index(LAI),mean foliage tilt angle(MTA),canopy openness(DIFN),and chlorophyll relative content(SPAD).The results showed that LAI and SPAD peak values were higher and their peak values arrived later,and the adjustment capacity of MTA during the flowering and boll-forming stages was stronger in Xinluzao 43,with the normal-leaf,pagoda plant type,than these values in other varieties.DIFN of Xinluzao 43 remained between0.09 and 0.12 during the flowering and boll-forming stages,but was lower than that in the other varieties during the boll-opening stage.Thus,these characteristics of Xinluzao 43 were helpful for optimizing the light environment and maximizing light interception,thereby increasing photosynthetic capability.The photosynthetic rate and photosynthetic area were thus affected by cotton genotype as changes in the adjustment range of MTA,increases in peak values of LAI and SPAD,and extension of the functional stage of leaves.Available photosynthetic area and canopy light environment were affected by cotton plant type as changes in MTA and DIFN.Heterosis expression and plant type development were coordinated during different growth stages,the key to optimizing the canopy structure and further increasing yield. | Guoyi Feng Honghai Luo Yali Zhang Ling Gou Yandi Yao Yongzeng Lin Wangfeng Zhang | 2016 | The Crop Journal2016,4,6: | 6 |
| 3 | Let-7b-5p regulates proliferation and apoptosis in multiple myeloma by targeting IGF1R显示文摘多重骨髓瘤(公里) 全球是从 hematological 恶意的死亡的最普通的原因,并且最近的研究表明了 let-7b-5p 能在 tumorigenesis 起一个禁止的作用。然而,在公里的 let-7b-5p 的角色仍然保持不清楚。这研究的目的是阐明 let-7b-5p 在公里由充当肿瘤 suppressor 的分子的机制。这里,量的即时聚合酶链反应结果证明 let-7b-5p 的表示显著地在公里纸巾和公里房间线(RPMI-8226 和 U266 房间) 被减少。而且, let-7b-5p 的在表示上显著地压制了 RPMI-8226 房间增长并且导致了 S/G2 房间周期拘捕和 apoptosis。酶记者试金结果证明(IGF1R ) 像胰岛素的生长因素受体 1 被 let-7b-5p 否定地在 post-transcriptional 水平调整。在 RPMI-8226 房间的 IGF1R 的 mRNA 和蛋白质层次由 let-7b-5p 是下面调整的。而且, let-7b-5p 禁止者改变的房间显型能被 IGF1R silencing (si-IGF1R ) 救。一起拿,我们的结果证明 let-7b-5p 在公里作为肿瘤 suppressor 工作,建议那 let-7b-5p 可以是为公里的一个潜在的治疗学的目标。 | Honghai Xu Cong Liu Yuelin Zhang Xiong Guo Zongzhi Liu Zhenqun Luo Yanhai Chang Shizhang Liu Zhengming Sun Xiaoqing Wang | 2014 | Acta Biochimica et Biophysica Sinica2014,46,11: | 4 |
| 4 | Fuzzy HX Group 显示文摘 | Luo Chengzhong Mi Honghai Li Hongxing | 1989 | BUSEFAL1989,,41: | 1 |