Through the analysis on the leaf color and photosynthetic characteristics of new strains and main cultivars of Rehmannia glutinosa,it is expected to provide theoretical basis for breeding of new varieties. Chlorophyll...Through the analysis on the leaf color and photosynthetic characteristics of new strains and main cultivars of Rehmannia glutinosa,it is expected to provide theoretical basis for breeding of new varieties. Chlorophyll,anthocyanin,and net photosynthetic rate（Pn）,stomatal conductance（Cond）,transpiration rate（Tr）,and intercellular CO2concentration（Ci） in 8 varieties of Rehmannia glutinosa were measured by spectrophotometer and LI-6400 XT Portable Photosynthesis System. The results showed that the chlorophyll content of Huaidijin 8（2. 84 mg/g）,Huaidi 81（2. 71 mg/g）,Huaidi 85-5（2. 69 mg/g）,Jinjiu（2. 66 mg/g） and Huaidi 83（2. 63 mg/g） was higher; the anthocyanin content of Jinjiu（0. 169） and Huaidijin 8（0. 165） was higher,while the anthocyanin content Huaidi 83（0. 060） was the lowest; Pn of Huaidi81[2. 41 μmol/（m2·s） ],Huaidi 83[2. 37 μmol/（m2·s） ]and Huaidijin 8[2. 25 μmol/（m2·s） ]was higher,and the anthocyanin content was positively correlated with Pn,while the anthocyanin content was negatively correlated with Pn; Huaidijin 8 and Huaidi 83 showed dominant advantages in single plant fresh weight,indicator component,and resistance over the main cultivars. This indicates that the new variety Huaidijin 8 and Huaidi 83 have excellent comprehensive traits and can be properly popularized.展开更多
New strain induced melt activation（new SIMA） method was employed to prepare high-quality semisolid billet of AZ61 magnesium alloy.Optical microscopy and tensile test were used to study the microstructure and mechani...New strain induced melt activation（new SIMA） method was employed to prepare high-quality semisolid billet of AZ61 magnesium alloy.Optical microscopy and tensile test were used to study the microstructure and mechanical properties of the thixo-extruded component.The results showed that the optimal process parameters for achieving the complete filling status involved the applied pressure of 784 MPa,the pressure holding time of 90 s and the die temperature of 450 ℃.Compared to semisolid isothermal treatment,high mechanical properties such as the tensile strength of 300.5 MPa and elongation of 22% and fine microstructure were obtained in the thixo-extruded parts.With increasing the isothermal temperature and holding time,the tensile strength and elongation were increased firstly and then decreased.When the press pass was increased from 1 to 4,the tensile strength and elongation of the thixo-extruded parts were greatly enhanced and microstructure was refined obviously.展开更多
【目的】分析评价双孢蘑菇野生种质创新杂交菌株的蛋白质和氨基酸营养成分,为利用野生种质选育营养价值更高的双孢蘑菇新菌株提供参考。【方法】以3个主栽品种为对照,测定分析了6个杂交新菌株的蛋白质与氨基酸含量,并参照WHO(World Heal...【目的】分析评价双孢蘑菇野生种质创新杂交菌株的蛋白质和氨基酸营养成分,为利用野生种质选育营养价值更高的双孢蘑菇新菌株提供参考。【方法】以3个主栽品种为对照,测定分析了6个杂交新菌株的蛋白质与氨基酸含量,并参照WHO(World Health Organization,世界卫生组织)/FAO(Food and Agriculture Organization of the UnitedNations,联合国粮食及农业组织)/UNU(UnitedNationsUniversity,联合国大学)、 IOM(Instituteof Medicine,美国医学研究所)、全鸡蛋蛋白3种氨基酸平衡模式谱,采用IOM模式评分、氨基酸评分、氨基酸比值系数、氨基酸比值系数分、化学评分等多种指标进行综合评价。【结果】野生种质创新杂交白色菌株福蘑63每百克蛋白质的必需氨基酸含量46.76 g、必需氨基酸指数94.45、必需氨基酸比例41.72%、消化率校正氨基酸得分86.73,在9个菌株中都是最高的。而野生种质创新杂交棕色菌株的蛋白质、总氨基酸、必需氨基酸、药用氨基酸、甜味氨基酸、碱性氨基酸、支链氨基酸以及多种氨基酸的含量均显著高于主栽品种。【结论】现有双孢蘑菇白色主栽品种的蛋白质、氨基酸等营养成分仍有提升的空间,可以引入营养价值相对较高的野生种质资源,基于营养成分评价开展营养品质定向杂交育种。展开更多
基金Supported by the Public Health Project of State Administration of Traditional Chinese Medicine of the People’s Republic of China[Cai She(2011)76]National Level Project Cultivation Fund of Henan Normal University in 2014(2014PL15)
文摘Through the analysis on the leaf color and photosynthetic characteristics of new strains and main cultivars of Rehmannia glutinosa,it is expected to provide theoretical basis for breeding of new varieties. Chlorophyll,anthocyanin,and net photosynthetic rate（Pn）,stomatal conductance（Cond）,transpiration rate（Tr）,and intercellular CO2concentration（Ci） in 8 varieties of Rehmannia glutinosa were measured by spectrophotometer and LI-6400 XT Portable Photosynthesis System. The results showed that the chlorophyll content of Huaidijin 8（2. 84 mg/g）,Huaidi 81（2. 71 mg/g）,Huaidi 85-5（2. 69 mg/g）,Jinjiu（2. 66 mg/g） and Huaidi 83（2. 63 mg/g） was higher; the anthocyanin content of Jinjiu（0. 169） and Huaidijin 8（0. 165） was higher,while the anthocyanin content Huaidi 83（0. 060） was the lowest; Pn of Huaidi81[2. 41 μmol/（m2·s） ],Huaidi 83[2. 37 μmol/（m2·s） ]and Huaidijin 8[2. 25 μmol/（m2·s） ]was higher,and the anthocyanin content was positively correlated with Pn,while the anthocyanin content was negatively correlated with Pn; Huaidijin 8 and Huaidi 83 showed dominant advantages in single plant fresh weight,indicator component,and resistance over the main cultivars. This indicates that the new variety Huaidijin 8 and Huaidi 83 have excellent comprehensive traits and can be properly popularized.
基金Project(51075099) supported by the National Natural Science Foundation of ChinaProject(E201038) supported by the Natural Science Foundation of Heilongjiang Province,China+3 种基金Project(20090460884) supported by the China Postdoctoral Science FoundationProjects (HIT.NSRIF.2013007 and 2012038) supported by the Fundamental Research Funds for the Central Universities,ChinaProject (2011RFQXG010) supported by the Harbin City Young Scientists Foundation under the GrantProject(LBH-T1102) supported by the Specially Postdoctoral Science Foundation of Heilongjiang Province,China
文摘New strain induced melt activation（new SIMA） method was employed to prepare high-quality semisolid billet of AZ61 magnesium alloy.Optical microscopy and tensile test were used to study the microstructure and mechanical properties of the thixo-extruded component.The results showed that the optimal process parameters for achieving the complete filling status involved the applied pressure of 784 MPa,the pressure holding time of 90 s and the die temperature of 450 ℃.Compared to semisolid isothermal treatment,high mechanical properties such as the tensile strength of 300.5 MPa and elongation of 22% and fine microstructure were obtained in the thixo-extruded parts.With increasing the isothermal temperature and holding time,the tensile strength and elongation were increased firstly and then decreased.When the press pass was increased from 1 to 4,the tensile strength and elongation of the thixo-extruded parts were greatly enhanced and microstructure was refined obviously.
文摘【目的】分析评价双孢蘑菇野生种质创新杂交菌株的蛋白质和氨基酸营养成分,为利用野生种质选育营养价值更高的双孢蘑菇新菌株提供参考。【方法】以3个主栽品种为对照,测定分析了6个杂交新菌株的蛋白质与氨基酸含量,并参照WHO(World Health Organization,世界卫生组织)/FAO(Food and Agriculture Organization of the UnitedNations,联合国粮食及农业组织)/UNU(UnitedNationsUniversity,联合国大学)、 IOM(Instituteof Medicine,美国医学研究所)、全鸡蛋蛋白3种氨基酸平衡模式谱,采用IOM模式评分、氨基酸评分、氨基酸比值系数、氨基酸比值系数分、化学评分等多种指标进行综合评价。【结果】野生种质创新杂交白色菌株福蘑63每百克蛋白质的必需氨基酸含量46.76 g、必需氨基酸指数94.45、必需氨基酸比例41.72%、消化率校正氨基酸得分86.73,在9个菌株中都是最高的。而野生种质创新杂交棕色菌株的蛋白质、总氨基酸、必需氨基酸、药用氨基酸、甜味氨基酸、碱性氨基酸、支链氨基酸以及多种氨基酸的含量均显著高于主栽品种。【结论】现有双孢蘑菇白色主栽品种的蛋白质、氨基酸等营养成分仍有提升的空间,可以引入营养价值相对较高的野生种质资源,基于营养成分评价开展营养品质定向杂交育种。
