The physical mechanism of resistance of poplar against Cryptorrhynchus lapathiL.is directly correlated with the morphological structure of bark,concerning the following 5aspects:1.It is correlated with whether surface...The physical mechanism of resistance of poplar against Cryptorrhynchus lapathiL.is directly correlated with the morphological structure of bark,concerning the following 5aspects:1.It is correlated with whether surface bark of larva transvered tunnel crack or not,ear-ly or late.Those that do not crack or crack late are susceptible strains while those that crack ear-ly are resistant strains.2.It is correlated with thickness of cork layer.Thick cork layer can in-crease resistance against pest while thin one is more susceptible to pest attack.3.It is related withage of tree.Trees at the age of 1-2 possess immunity to the pest,at 3-4 are relatively resistant,at5-8 are susceptible and over 9 are more resistant.4.It is also correlated with the rate of trees‘healing round the holes of larva tunnels.Those healing faster are resistant while those healingslower arc susceptible.5.It is related with the number of various scars on bark surface.展开更多
The general operation of dyeing and printing industry maintained a trend of slow stabilization during the 12th Five-Year Program period with obvious results in science and technology,management,energy conservation and...The general operation of dyeing and printing industry maintained a trend of slow stabilization during the 12th Five-Year Program period with obvious results in science and technology,management,energy conservation and environmental protection as well as the balanced development of the industries.Chen Zhihua,president of China Dyeing and Printing Association(CDPA),said that the dyeing and printing industry has in-展开更多
During the period of 12th Five-Years Program,as the global and science progress,Chinese knitting industry relying on innovation and transformation has developed stably.Income of main business,total profit,fixed asset ...During the period of 12th Five-Years Program,as the global and science progress,Chinese knitting industry relying on innovation and transformation has developed stably.Income of main business,total profit,fixed asset investment,construction project,newly commenced project and completed project keep high speed growth year on year,higher than other textile industry."It is展开更多
2015.5 Recent price movement After trending higher from midMarch through the end of April,values for NY futures and the A Index turned lower in May.Chinese prices have been stable,while Indian and Pakistani prices inc...2015.5 Recent price movement After trending higher from midMarch through the end of April,values for NY futures and the A Index turned lower in May.Chinese prices have been stable,while Indian and Pakistani prices increased.Prices for the nearby July contract(NY futures)met resistance near 68 cents/展开更多
文摘The physical mechanism of resistance of poplar against Cryptorrhynchus lapathiL.is directly correlated with the morphological structure of bark,concerning the following 5aspects:1.It is correlated with whether surface bark of larva transvered tunnel crack or not,ear-ly or late.Those that do not crack or crack late are susceptible strains while those that crack ear-ly are resistant strains.2.It is correlated with thickness of cork layer.Thick cork layer can in-crease resistance against pest while thin one is more susceptible to pest attack.3.It is related withage of tree.Trees at the age of 1-2 possess immunity to the pest,at 3-4 are relatively resistant,at5-8 are susceptible and over 9 are more resistant.4.It is also correlated with the rate of trees‘healing round the holes of larva tunnels.Those healing faster are resistant while those healingslower arc susceptible.5.It is related with the number of various scars on bark surface.
文摘The general operation of dyeing and printing industry maintained a trend of slow stabilization during the 12th Five-Year Program period with obvious results in science and technology,management,energy conservation and environmental protection as well as the balanced development of the industries.Chen Zhihua,president of China Dyeing and Printing Association(CDPA),said that the dyeing and printing industry has in-
文摘During the period of 12th Five-Years Program,as the global and science progress,Chinese knitting industry relying on innovation and transformation has developed stably.Income of main business,total profit,fixed asset investment,construction project,newly commenced project and completed project keep high speed growth year on year,higher than other textile industry."It is
文摘2015.5 Recent price movement After trending higher from midMarch through the end of April,values for NY futures and the A Index turned lower in May.Chinese prices have been stable,while Indian and Pakistani prices increased.Prices for the nearby July contract(NY futures)met resistance near 68 cents/
