The growth dynamics of root system and aboveground of the grafted seedlings of different Camellia oleifera cultivars are studied by skeleton method and root scanning.The results of 8-months’ observation on grafted se...The growth dynamics of root system and aboveground of the grafted seedlings of different Camellia oleifera cultivars are studied by skeleton method and root scanning.The results of 8-months’ observation on grafted seedlings of 5 C.oleifera cultivars showed that: the growth of aerial parts and root of the C.oleifera seedlings were not entirely in sync,during the time of low temperature from November to February,the root system still in sustained growth though the aerial parts of the 5 cultivars grew slowly.Remarkable differences were existed in root length,root surface area,root volume,root biomass and other indicators after 11-months’ growth.The mean value of total length of root-system was up to 243.3 cm and 143.4 cm for the minimum,the mean value of total root surface area was up to 50.2 cm2 and 31.7 cm2 for the minimum,the mean value of root volume of the C.oleifera seedlings was up to 0.843 cm3 and 0.578 cm3 for the minimum which lived 11 months after grafting.All the root length,root surface area,root volume of the 5 cultivars have remarkable differences.展开更多
This experiment was conducted in the demonstration bases of pecan in Jiande,Zhejiang Province,which mainly studied on the growth of pecan seedlings under various water stresses.The results were as follows: the indexes...This experiment was conducted in the demonstration bases of pecan in Jiande,Zhejiang Province,which mainly studied on the growth of pecan seedlings under various water stresses.The results were as follows: the indexes of tree height,root diameter,root length,root surface area and root volume and so on were different significantly under various water stresses.That was,with the water stress being heavier,all these indexes appeared a declining trend;and if it was rewatered in the following process,all these indexes would grow,but the indexes of root length,root surface area and root volume changed with the control.In addition,the proline content in the leaves would grow rapidly in threatening initial stage and decline along with the water stress increased,and it would recover to the original level when the pecan seedlings were rewatered.展开更多
文摘The growth dynamics of root system and aboveground of the grafted seedlings of different Camellia oleifera cultivars are studied by skeleton method and root scanning.The results of 8-months’ observation on grafted seedlings of 5 C.oleifera cultivars showed that: the growth of aerial parts and root of the C.oleifera seedlings were not entirely in sync,during the time of low temperature from November to February,the root system still in sustained growth though the aerial parts of the 5 cultivars grew slowly.Remarkable differences were existed in root length,root surface area,root volume,root biomass and other indicators after 11-months’ growth.The mean value of total length of root-system was up to 243.3 cm and 143.4 cm for the minimum,the mean value of total root surface area was up to 50.2 cm2 and 31.7 cm2 for the minimum,the mean value of root volume of the C.oleifera seedlings was up to 0.843 cm3 and 0.578 cm3 for the minimum which lived 11 months after grafting.All the root length,root surface area,root volume of the 5 cultivars have remarkable differences.
文摘This experiment was conducted in the demonstration bases of pecan in Jiande,Zhejiang Province,which mainly studied on the growth of pecan seedlings under various water stresses.The results were as follows: the indexes of tree height,root diameter,root length,root surface area and root volume and so on were different significantly under various water stresses.That was,with the water stress being heavier,all these indexes appeared a declining trend;and if it was rewatered in the following process,all these indexes would grow,but the indexes of root length,root surface area and root volume changed with the control.In addition,the proline content in the leaves would grow rapidly in threatening initial stage and decline along with the water stress increased,and it would recover to the original level when the pecan seedlings were rewatered.
