Abstract
Inhibition of photosynthesis, plant growth and seminal root elongation was evaluated to investigate the difference in the effect of herbicide injury between naked barley and wheat. The results were as follows.
1. Foliar application of photosynthesis inhibitors such as ioxynil, prometryn, diuron and linuron resulted in a more pronounced decrease in the photosynthetic rate of naked barley compared with wheat. The effect of prometryn, diuron and linuron applications was particularly conspicuous.
2. Photosynthesis and plant growth were more severely inhibited in naked barley than in wheat following the combined application of diuron and dichlobenil, prometryn and dichlobenil, respectively.
3. Inhibition of elongation of seminal root by dichlobenil was more severe in naked barley than in wheat, However, the same degree of inhibition was recorded in both species after the application of chloropropham, bentiocarb and trifluralin.
