The effect of 2, 4-Dichlorophenoxy acetic acid and Bradyrhizobium on induction of Para-nodule in wheat roots  

作　　者：Nagaraja R. Gurumurthy B. R. Devappa V 

机构地区：[1]Department of Microbiology, College of Agriculture, Navile Campus, Shimoga 577204, India [2]Areca Research Station, Thirtahalli, University of Horticultural Sciences, Bagalkot 587301, India [3]Department of Plant Pathology, College of Agriculture, Navile Campus, Shimoga 577204, India

出　　处：《Journal of Agricultural Science and Technology》2009年第8期14-16,共3页农业科学与技术（美国大卫英文）

摘　　要：The investigation was conducted to know the effect of 2, 4-Dichlorophenoxy acetic acid and inoculation on Para-nodule formation and growth parameters in wheat. Formation of nodular outgrowth on the roots of wheat seedlings treated with 2, 4-D commenced in 8-10 days. The maximum Para-nodule formation was found in 1 ppm of 2, 4-D when incubated with bradyrhizobium P-132. Inoculation of the same has helped to increase the number of Para-nodule, but not essential for Para-nodulation. Histological study shows that, these induced Para-nodules originated from the pericycle and these are appeared to be modified lateral roots and Para-nodule structure formations however, it enhanced by bradyrhizobial inoculation.

关 键 词：Para-nodule 2  4-D pericycle N-FIXATION 

分 类 号：S512.101[农业科学—作物学] TQ457.21[化学工程—农药化工]