The effects of Phorate (Thimet) used in nematode control of some biochemical components of seeds of treated soybean Glycine max (L.) Merrill

Abstract

The effects of a synthetic nematicide Phorate (O,O-diethyl thiomethyl phosphoro dithioate) on some biochemical components of the seeds of treated soyabean cultivars TGM 80 and TGM 344 were studied.  Results show that treated plants had significantly (P = 0.05) higher crude fibre, crude protein, fat/oil and phosphorus contents but lower free fatty acids than the control.  The values of free fatty acids which were obtained for plants treated with 1500 and 1000 µg a.i/ml were less than half of those obtained for the controls in both soyabean cultivars TGM 80 and TGM 344.  This shows that Phorate can be used successfully to control root knot nematodes on soyabean and consequently to enhance the quality of treated soyabean seeds