Phytoremediation is one of the cost-effective and environmental friendly technologies used to remove contaminants from contaminated soils,which has been intensively studied during the last decade.Presently,few economi...Phytoremediation is one of the cost-effective and environmental friendly technologies used to remove contaminants from contaminated soils,which has been intensively studied during the last decade.Presently,few economical and effective remediation methods are available for the remediation of Pb contaminated sites.This study was conducted to assess the potential of 19 plants growing on contaminated sites in Pb mine area.Plants and associated soil samples were collected and analyzed for total metal concentrati...展开更多
The study on the allelopathy of Pseudomonas fluorescens showed that 200 times dilution of its cultured solution could restrain the growth of all test crops,400 times dilution showed a weak restraining effect on most c...The study on the allelopathy of Pseudomonas fluorescens showed that 200 times dilution of its cultured solution could restrain the growth of all test crops,400 times dilution showed a weak restraining effect on most crops,while 600 times dilution had some stimulating effect.The effects differed with crop varieties.展开更多
According to statistics of International Service for the Acquisition of Agri-biotech Applications(ISAAA),18million farmers in 28 countries planted more than 181million hectares of genetically modified(GM)crops in2014,...According to statistics of International Service for the Acquisition of Agri-biotech Applications(ISAAA),18million farmers in 28 countries planted more than 181million hectares of genetically modified(GM)crops in2014,at an annual growth rate of between 3%–4%,with6.3 million ha more than 2013[1].Among these counties,China ranks the sixth with 3.9 million ha.Globally,27kinds of transgenic crops have been approved.The four main food groups for which GM varieties are展开更多
Rice is one of the earliest domesticated crops that has been cultivated for thousands of years.Interestingly,unlike other crops that are predominantly domesticated by a singleto neventin one place,the domestication of...Rice is one of the earliest domesticated crops that has been cultivated for thousands of years.Interestingly,unlike other crops that are predominantly domesticated by a singleto neventin one place,the domestication of rice is quite complicated;it independently occurred in Asia and Africa toform the Asian cultivated rice Oryza sativa and the African cultivated rice O.glaberrima,respectively.O.sativa was mainly domesticated from the Asian wild rice O.rufipogon in East/South Asia(Huang et al.,2012).Furthermore,O.sativa can be classified into two main types:Geng(O.sativa ssp.japonica)and Xian(O.sativa ssp.indica).Geng was domesticated as early as 9000 years ago,while Xian was domesticated lateralong with continuousgene flow from Geng(Choi etal.,2017).O.glaberrimawas domesticated from African wild rice O.barthi approximately 3500 years ago.O.barthii and O.rufipogon diverged approximately 600000 years ago.展开更多
The investigation of wild species of cultivated plants and their original habitats is one of the phases of the study on the origin and evolution of plants. On Qinghai-Xizang (Tibet) plateau, known as the world’s roof...The investigation of wild species of cultivated plants and their original habitats is one of the phases of the study on the origin and evolution of plants. On Qinghai-Xizang (Tibet) plateau, known as the world’s roof, there can be found a lot of plant resources. Thus explorations were made by us, together with Guo Benzhao (郭本兆), in Qinghai in 1978 and shortly afterwards in Xizang in 1979. Many specimens of wild species which are connected with the origin of some crops were collected and described as below. Gramineae: wild barley, i.e. Hordeum spon taneum, H. agriocrithon, H. lagunculiforme, H. bulbosum. H. brevisnbulatum; wild oat,展开更多
基金supported by the NationalBasic Research Program of China(No.2002CB412310)the Yunnan Science and Technology Human DevelopmentProgram(No.2006py01-41)+1 种基金the Yunnan Science andTechnology Cooperation Programm(No.2005Y10)the Yunnan Environmental Science Development Program.
文摘Phytoremediation is one of the cost-effective and environmental friendly technologies used to remove contaminants from contaminated soils,which has been intensively studied during the last decade.Presently,few economical and effective remediation methods are available for the remediation of Pb contaminated sites.This study was conducted to assess the potential of 19 plants growing on contaminated sites in Pb mine area.Plants and associated soil samples were collected and analyzed for total metal concentrati...
文摘The study on the allelopathy of Pseudomonas fluorescens showed that 200 times dilution of its cultured solution could restrain the growth of all test crops,400 times dilution showed a weak restraining effect on most crops,while 600 times dilution had some stimulating effect.The effects differed with crop varieties.
文摘According to statistics of International Service for the Acquisition of Agri-biotech Applications(ISAAA),18million farmers in 28 countries planted more than 181million hectares of genetically modified(GM)crops in2014,at an annual growth rate of between 3%–4%,with6.3 million ha more than 2013[1].Among these counties,China ranks the sixth with 3.9 million ha.Globally,27kinds of transgenic crops have been approved.The four main food groups for which GM varieties are
基金supported by the National Natural Science Foundation of China(31788103)the Strategic Priority Research Program of Chinese AcademyofSciences(XDA24030501,XDA24030403,andXDA24040102)National Natural Science Foundation of China(32090064,32172053,and32001501).
文摘Rice is one of the earliest domesticated crops that has been cultivated for thousands of years.Interestingly,unlike other crops that are predominantly domesticated by a singleto neventin one place,the domestication of rice is quite complicated;it independently occurred in Asia and Africa toform the Asian cultivated rice Oryza sativa and the African cultivated rice O.glaberrima,respectively.O.sativa was mainly domesticated from the Asian wild rice O.rufipogon in East/South Asia(Huang et al.,2012).Furthermore,O.sativa can be classified into two main types:Geng(O.sativa ssp.japonica)and Xian(O.sativa ssp.indica).Geng was domesticated as early as 9000 years ago,while Xian was domesticated lateralong with continuousgene flow from Geng(Choi etal.,2017).O.glaberrimawas domesticated from African wild rice O.barthi approximately 3500 years ago.O.barthii and O.rufipogon diverged approximately 600000 years ago.
文摘The investigation of wild species of cultivated plants and their original habitats is one of the phases of the study on the origin and evolution of plants. On Qinghai-Xizang (Tibet) plateau, known as the world’s roof, there can be found a lot of plant resources. Thus explorations were made by us, together with Guo Benzhao (郭本兆), in Qinghai in 1978 and shortly afterwards in Xizang in 1979. Many specimens of wild species which are connected with the origin of some crops were collected and described as below. Gramineae: wild barley, i.e. Hordeum spon taneum, H. agriocrithon, H. lagunculiforme, H. bulbosum. H. brevisnbulatum; wild oat,
