耕作方式对不同抛秧水稻品种立苗期根系生长的影响  

Effect of Tillage Pattern on Root Growth of Different Rice Cultivar During Seedling Standing Period

作　　者：秦华东[1,2] 张玉[1] 肖巧珍[1] 江立庚[1] 徐世宏 丁成泉[1] 杨彩铃[1] 汪妮娜[1] 

机构地区：[1]广西大学作物栽培学与耕作学重点实验室,广西南宁530005 [2]广西大学图书馆,广西南宁530005 [3]广西农业技术推广总站,广西南宁530022

出　　处：《热带作物学报》2013年第6期1029-1032,共4页Chinese Journal of Tropical Crops

基　　金：国家自然科学基金项目(No.30560066);广西科学基金项(No.0832008Z;No.0991010Z;No.0640020);国家现代农业产业技术体系广西水稻创新团队专项经费

摘　　要：对不同耕作方式2种基因型水稻的立苗期根系特性进行研究。结果表明:两优培九、金优253立苗期免耕抛秧单株根干重、单条根长、根毛区长略低于常耕抛秧,但差异不显著。免耕提高了水稻立苗后期总根数、白根数、根系活力和超氧化物歧化酶活性。立苗期超级稻两优培九的单株根生物量、总根数、一次分枝、二次分枝根数量、根系活力和超氧化物歧化酶活性均显著高于金优253。The Effect of tillage pattern on root growth of different rice cultivar during seedling standing period was studied. The results showed that the no-tillage and cast transplanting rice root number, whiter root number, root activity and SOD activity increased significantly or greatly significantly during late seedling standing period. However there were no significant differences in the rice ratio of root to shoot dry weight, shoot dry weight and biomass per plant, root length per plant and root hair zone length, root primary branches, root second branches compared with conventional tillage and cast transplanting rice. Liangyou Peijiu had positive effect on root growth and activity, the differences were significant compared with Jinyou253.

关 键 词：耕作方式 水稻品种 根系生长 

分 类 号：S311[农业科学—作物栽培与耕作技术]