Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7...Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7.CO2 coding region was identified through sequence alignment of BnaGRF7.C02 in 42 rapeseed varieties,and associ-ation analysis indicated that the 15 bp-deletion was related to the rapeseed Thousand-Seed Weight(TSW)phenotype.Furthermore,we developed two InDel markers to identify this 15 bp InDel.The tissue-specific expression patterns showed that BnaGRF7.C02 prominently expressed in the late stage of seed development.These findings may assist in InDel markers-based breeding efforts to select higher TWS varieties and improve the crop yield of B.nqpus.展开更多
This paper is concerned with the fossil fuel composition of carbon emissions in 10 selected Asian countries. It assesses how economic development may affect this composition through various channels. This paper contri...This paper is concerned with the fossil fuel composition of carbon emissions in 10 selected Asian countries. It assesses how economic development may affect this composition through various channels. This paper contributes to the debate on the EKC （environmental Kuznets curve） puzzle, which hypothesizes an inverted U-shaped relationship between per capita income and pollution. The paper examines the EKC hypothesis in an empirical analysis of channels that may allow for this effect. In particular, a specific subset of this general paradigm is investigated using a fractional multinomial logit model to assess how indicators associated with economic development and energy prices affect carbon emissions from coal relative to those of natural gas and oil.展开更多
为了探讨JIS L 1096:2010中pH值方法A溶液冷却时不同容器中CO2的量对碱性溶液试验结果的影响,分别采用不同容器对水溶液的空白试验和已知浓度NaOH溶液根据理论计算的pH值及实际pH值进行测定。该试验表明,碱性条件下,容器中的CO2基本与...为了探讨JIS L 1096:2010中pH值方法A溶液冷却时不同容器中CO2的量对碱性溶液试验结果的影响,分别采用不同容器对水溶液的空白试验和已知浓度NaOH溶液根据理论计算的pH值及实际pH值进行测定。该试验表明,碱性条件下,容器中的CO2基本与溶液中的OH—结合,生成NaHC03和Na2C03。应尽量选择被反应液填满,避免冷却时与CO2接触的器具。展开更多
基金the National Key Research and Development Program of China(2016YFD0100305,2016YFD0101900)。
文摘Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7.CO2 coding region was identified through sequence alignment of BnaGRF7.C02 in 42 rapeseed varieties,and associ-ation analysis indicated that the 15 bp-deletion was related to the rapeseed Thousand-Seed Weight(TSW)phenotype.Furthermore,we developed two InDel markers to identify this 15 bp InDel.The tissue-specific expression patterns showed that BnaGRF7.C02 prominently expressed in the late stage of seed development.These findings may assist in InDel markers-based breeding efforts to select higher TWS varieties and improve the crop yield of B.nqpus.
文摘This paper is concerned with the fossil fuel composition of carbon emissions in 10 selected Asian countries. It assesses how economic development may affect this composition through various channels. This paper contributes to the debate on the EKC （environmental Kuznets curve） puzzle, which hypothesizes an inverted U-shaped relationship between per capita income and pollution. The paper examines the EKC hypothesis in an empirical analysis of channels that may allow for this effect. In particular, a specific subset of this general paradigm is investigated using a fractional multinomial logit model to assess how indicators associated with economic development and energy prices affect carbon emissions from coal relative to those of natural gas and oil.
文摘为了探讨JIS L 1096:2010中pH值方法A溶液冷却时不同容器中CO2的量对碱性溶液试验结果的影响,分别采用不同容器对水溶液的空白试验和已知浓度NaOH溶液根据理论计算的pH值及实际pH值进行测定。该试验表明,碱性条件下,容器中的CO2基本与溶液中的OH—结合,生成NaHC03和Na2C03。应尽量选择被反应液填满,避免冷却时与CO2接触的器具。
