dicotyledon
2.Differences among peak wavelengthes and peak intensities can be used to distinguish woody broadleaf trees and coniferous trees, as well as herbaceous dicotyledon and monocotyledon.
3.Seventy species of plant belonging to 36 genera of Gramineae and 9 species of dicotyledon were tested or their susceptibility to the virus cau-sing maize rough dwarf disease and their symptoms produced after insect(Laodelphax striatellus Fallen.) inoculations.
4.The preliminary biological tests show that most of compounds 6 have good herbicidal activities to monocotyledon Barnyard grass and dicotyledon Cole . Compound 6h, 2 methylthio 5 benzylidene 3 (3′ chloro benzyl) imino imidazoli 4 one exhibits 100% inhibition against Cole root and stalk, Barnyard grass root in 100 mg/L.
