Embryoid Inducement and Observation on Agronomic Characters of the Regenerated Plant of Sugarcane

It was reported that the application of N6(or MS)+2,4-D(2.2 mg/L)may directly induce somatic embryoid from explant callus.Based on this,we added hydrolytic casamino acid(1.5g/L)and signi-ficantly increased the embryoid-inducing rate. The average height of regenerated plants at technicalmaturing period was 12.49 cm higher than that of stem-buding plants,its stem diameter was 0.3 cm thiner,the number of millable stalk was 8475/ hm2 more,the yield was 11.58% lower and the stem brix was 5.35% lower than that of stem-buding plants. The methodology to improve the sugar-content of embryoid-regenerated plants was also discussed in this paper.