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| 1 | Change of water use efficiency and its relation with root system growth in wheat evolution显示文摘Raising crop water use efficiency (WUE) is the physiological basis to implement crop high efficiently using water. The present soil column and field experiments are designed to investigate the change of wheat WUE (Triticum aestivum L.) at whole plant level and root system growth in evolution and the relationship between WUE and its root system growth using 10 wheat evolution genotypes with different ploidy chromosomes sets. Results show that in wheat evolution from 2n→6n, WUE at whole plant level increases with the increase of ploidy chromosomes, and root system growth (root weight, root length) and root/shoot ratio of wheat decrease with the increase of ploidy chromosomes under dry and irrigated conditions. WUE is negatively correlated with root weight and root/shoot ratio of wheat in evolution, significantly. Root system growth has an adverse redundancy for WUE in wheat evolution, and the root redundancy reduces with the increase of ploidy chromosomes, which result in the increase of wheat WUE at | ZHANG Suiqi SHAN Lun DENG Xiping | 2002 | Chinese Science Bulletin2002,47,22: | 13 |
| 2 | The spike weight contribution of the photosynthetic area above the upper internode in a winter wheat under different nitrogen and mulching regimes显示文摘Besides leaves, non-foliar green organs such as stem and spike are also considered photosynthetic organs. To assess the photosynthetic contributions of these organs, the correlations between these photosynthetic areas and single-spike weight were investigated in a winter wheat(Triticum aestivum L.) under four nitrogen and mulching treatments: N120,N150, N195, and N195 + M. Two-year repeated field experiments were conducted on the Loess Plateau of China. Non-foliar photosynthetic area, grain-filling ratio and duration,grain yield, and in particular, single-spike weight, were measured, recorded and analyzed.Under the N195 + M treatment, plants showed the largest area of photosynthetic organs(flag leaf and non-foliar organs) and the highest grain yield and single spike weight. Singlespike weight was positively correlated with the areas of all examined non-foliar photosynthetic organs, in particular with the area above the flag leaf node(R^2= 0.761*)and the area above the exposed part of the peduncle(EXP)(R^2= 0.800**). In addition, singlespike weight was highly correlated with average grain-filling ratio(R^2= 0.993**), whereas it was less highly correlated with grain-filling duration(R^2= 0.533). The morphological traits of non-foliar photosynthetic organs were also more highly correlated with average grainfilling ratio than with average grain-filling duration. The significant correlation between each of the morphological traits(area, length and width) of EXP and single-spike weight indicates that morphological traits of EXP are important in determining spike weight in the Loess Plateau environment. | Wei Chen Jingjuan Zhang Xiping Deng | 2019 | The Crop Journal2019,7,1: | 5 |
| 3 | Increasing rainfed wheat yield by optimizing agronomic practices to consume more subsoil water in the Loess Plateau显示文摘Erratic rainfall and misalignment between the rainy season and the growing season of winter wheat greatly limit rainfed winter wheat yield in the Loess Plateau of China. To increase the grain yield of winter wheat in this region, the effects of different agronomic practices, including adjusting planting pattern(NR, narrow row spacing), increasing seeding rate(high seeding rate, HS), decreasing basal nitrogen rate and increasing top-dressed nitrogen rate(DBN), and replacing an old cultivar with a new cultivar(NC) on wheat yield were investigated for two consecutive years. The results showed that the current grain yield of rainfed winter wheat in the Loess Plateau could be increased to 5879–7093 kg ha^(-1) by HS, DBN and NC practices relative to the practice of high-yielding farmers(PF). The increased yield due to HS, DBN and NC was attributed to the higher number of spikes ha^(-1), 1000-grain weight, and kernels spike^(-1). Before the flowering stage, HS increased soil water consumption(SWC) in 1–3 m subsoil due to the higher plant population compared with that of PF, whereas DBN decreased SWC in the 0–2 m soil layer compared with that of PF. After the flowering stage, HS, DBN, and NC increased SWC by 8–16 mm in 2–3 m subsoil compared to PF. The water use efficiency(WUE) was increased under DBN and NC in comparison with PF.However, the WUE did not increase under HS as it had the highest evapotranspiration among the five treatments. Increasing the use of subsoil water during the late growth stage by optimizing agronomic practices or applying new cultivars with expansive roots should be the primary approach to increase rainfed winter wheat yield in this region. | Wenjia Yang Weijian Liu Yulin Li Shiwen Wang Lina Yin Xiping Deng | 2021 | The Crop Journal2021,9,6: | 2 |
| 4 | Advances in Biological Water-saving Research:Challenge and Perspectives显示文摘Increasing the efficiency of water use by crops continues to escalate as a topic of concern because drought is a restrictive environmental factor for crop productivity worldwide. Greater yield per unit rainfall is one of the most important challenges in water-saving agriculture. Besides water-saving by irrigation engineering and conservation tillage, a good understanding of factors limiting and/or regulating yield now provides us with an opportunity to identify and then precisely select for physiological and breeding traits that increase the efficiency of water use and drought tolerance under water-limited conditions, biological water-saving is one means of achieving this goal. A definition of biological water-saving measures is proposed which embraces improvements in water-use efficiency (WUE) and drought tolerance, by genetic improvement and physiological regulation. The preponderance of biological water-saving measures is discussed and strategies identified for working within natural resource constraints. The technology and future perspectives of biological water saving could provide not only new water-saving techniques but also a scientific base for application of water-saving irrigation and conservation tillage. | Lun Shan Xiping Deng Suiqi Zhang | 2006 | Science Foundation in China2006,14,2: | 2 |
| 5 | Improving agricultural water use efficiency in arid and semiarid areas of China显示文摘 | Xiping Deng | 2006 | Agricultural Water Manage- ment2006,80,: | 1 |
| 6 | Comparative Nutritional Analysis on Fish Meal and Meat and Bone Meal of Harmless Treatment of Dead Pig Carcass显示文摘In order to explore the resource utilization of the harmless treatment product(pork meat and bone meal,abbreviated PM)of pigs died of non-communicable diseases,the general nutritional components and amino acid composition of PM and fish meal were determined and compared.The results showed that the contents of moisture,crude protein,crude fat and ash in PM and fish meal were 3.25%and 8.92%,66.65%and 66.67%,13.52%and 8.23%,18.25%and 21.50%,respectively.The contents of essential amino acids(EAA)in PM and fish meal were 19.94%and 22.35%,respectively.For PM and fish meal,the first limiting amino acid was Met(methionine)+Cys(cysteine),and the second limiting amino acid was Lys(lysine);their essential amino acid indexes(EAAI)were 66.60 and 77.04,respectively;and their delicious amino acid(DAA)contents were 26.89%and 23.15%,respectively.In summary,the meat and bone meal of pigs died of non-communicable diseases has the characteristics of high protein and low ash contents,and has certain development and utilization potential as a recycled waste resource,especially in aquatic feed to replace fish meal. | Xiaofei CHENG Jin XIANG Shiming DENG Xing TIAN Xiping YUAN Shaoming LI Rui SONG Li LIU | 2020 | Agricultural Biotechnology2020,9,6: | 1 |
| 7 | Silicon-mediated changes in polyamine and 1-aminocyclopropane-1-carboxylic acid are involved in silicon-induced drought resistance in Sorghum bicolor L显示文摘 | Lina Yin Shiwen Wang Peng Liu Wenhua Wang Dan Cao Xiping Deng Suiqi Zhang | 2014 | Plant Physiology and Biochemistry2014,,: | 1 |
| 8 | Amorphous nickelphosphorus alloy deposited on a support and its hydrogenation activity显示文摘 | Deng Jingfa Zhang Xiping Min Enze | 1989 | Appl Catal1989,37,: | 1 |
| 9 | Improving agricultural water use efficiency in arid and semiarid areas of China 显示文摘 | Deng Xiping | 2006 | Agricultural Water Management2006,,: | 1 |
| 10 | Winter wheat yield improvement by genetic gain across different provinces in China显示文摘The replacement of winter wheat varieties has contributed significantly to yield improvement worldwide,with remarkable progress in China.Drawing on two sets of data,production yield from the National Bureau of Statistics of China and experimental yield from literature,this study aims to(1)illustrate the increasing patterns of production yield among different provinces from 1978 to 2018 in China,(2)explore the genetic gain in yield and yield relevant traits through the variety replacement based on experimental yield from 1937 to 2016 in China,and(3)compare the yield gap between experimental yield and production yield.The results show that both the production and experimental yields significantly increased along with the variety replacement.The national annual yield increase ratio for the production yield was 1.67%from 1978 to 2018,varying from 0.96%in Sichuan Province to 2.78%in Hebei Province;such ratio for the experimental yield was 1.13%from 1937 to 2016.The yield gap between experimental and production yields decreased from the 1970s to the 2010s.This study reveals significant increases in some yield components consequent to variety replacement,including thousand-grain weight,kernel number per spike,and grain number per square meter;however,no change is shown in spike number per square meter.The biomass and harvest index consistently and significantly increased,whereas the plant height decreased significantly. | Wei Chen Jingjuan Zhang Xiping Deng | 2024 | Journal of Integrative Agriculture2024,23,2: | 1 |
| 11 | TSA1 interacts with CSN1/CSN and may be functionally involved in Arabidopsis seedling development in darkness显示文摘COP9 signalosome (CSN ) 是参予多样的细胞、发展的过程的 multiprotein 建筑群。CSN1, CSN 的子单元之一,为经由一种总线标准的 multiprotein 建筑群的汇编是必要的(proteasome, COP9 signalosome 和开始因素 3 ) 在 CSN1 的 C 终端一半的领域。然而, CSN1 的 N 终端域(NTD ) 的角色,为 CSN 的函数批评,完全没被理解。用酵母二混血儿(Y2H ) 屏蔽,我们发现 CSN1 的 NTD 与联系 TSK 蛋白质 1 交往(TSA1 ) ,报导 Ca2+ 有约束力的蛋白质。在 CSN1 和 TSA1 之间的相互作用被 co-immunoprecipitation 在 Arabidopsis 证实。tsa1 异种在黑暗展出了短胚轴显型,但是类似于在白光下面的野类型的 Arabidopsis,它建议 TSA1 可能在黑暗中调整 Arabidopsis 胚轴开发。而且, TSA1 的表示在 csn1 0 异种(fus6 ) 是显著地更低的,当 CSN1 表示没随着弱 TSA1 表示在 tsa1 异种变化时。一起,这些调查结果在幼苗开发建议在 TSA1 和 CSN1 之间的一种功能的关系。 | Wenjun Li Baisheng Zang Citao Liu Lu Lu Ning Wei Kaiming Cao Xing Wang Deng Xiping Wang | 2011 | Journal of Genetics and Genomics2011,38,11: | 1 |
| 12 | Benzothiophene and benzosulfone fused pyrazino[2,3-g]quinoxaline:Synthesis and semiconducting properties显示文摘A novel air-stable n-type benzothiaphene endcapped azaarene(BTPQ) and its sulfonated derivative(BSPQ) were prepared via two pathways and characterized by NMR, UV–vis, fluorescence and cyclic voltammetry spectroscopy. Symmetrically introducing four nitrogen atoms into acenes, the semiconductor properties could be changed from p-type to n-type detected through the space charge limited current(SCLC) method. After sulfonation of BTPQ, BSPQ is with deeper frontier orbital energy levels and enhanced the electron mobility. | Fangwei Ding Debin Xia Xiping Ding Ruibin Deng Congwu Ge Yulin Yang Ruiqing Fan Kaifeng Lin Xike Gao | 2023 | Chinese Chemical Letters2023,34,2: | 0 |