To find Jatropha curcas L. accessions with characteristics suitable for rootstock plants, 11 selected accessions were analyzed in response to heavy soil. Six-week-old of jatropha were grown in 11 L ofentisols （M1） a...To find Jatropha curcas L. accessions with characteristics suitable for rootstock plants, 11 selected accessions were analyzed in response to heavy soil. Six-week-old of jatropha were grown in 11 L ofentisols （M1） and grumusols （M2） soil for 10 weeks, while andosols soil richer in organic carbon were used as control media （M0）. Growth of shoot and primary as well as secondary roots were observed during and at the end of the experiment. Macro and micro nutrient uptake was also analyzed at the end of experiment. Ml and M2 caused dramatically reduction of roots as well as shoot growth of all accessions. The reduction of growth component was in accordance to all nutrient uptakes except Ca and Mg. The data showed that type of soil was one of important factors influencing growth and development of J. curcas. There were 4 accessions i.e. Sumatra-l （S1）, Sumatra-2 （S2）, Java-3 （J3） and Java-2 （J2） which had better roots and shoot characteristics that were potential to be used as rootstock plants.展开更多
文摘To find Jatropha curcas L. accessions with characteristics suitable for rootstock plants, 11 selected accessions were analyzed in response to heavy soil. Six-week-old of jatropha were grown in 11 L ofentisols （M1） and grumusols （M2） soil for 10 weeks, while andosols soil richer in organic carbon were used as control media （M0）. Growth of shoot and primary as well as secondary roots were observed during and at the end of the experiment. Macro and micro nutrient uptake was also analyzed at the end of experiment. Ml and M2 caused dramatically reduction of roots as well as shoot growth of all accessions. The reduction of growth component was in accordance to all nutrient uptakes except Ca and Mg. The data showed that type of soil was one of important factors influencing growth and development of J. curcas. There were 4 accessions i.e. Sumatra-l （S1）, Sumatra-2 （S2）, Java-3 （J3） and Java-2 （J2） which had better roots and shoot characteristics that were potential to be used as rootstock plants.
