Analysis on Growth, Yield Traits of Several Edible Cassava Cultivars
[Objective]The growth,yield traits of several edible cassava cultivars was studied to screen cultivars with good comprehensive characters and provide a theoretical basis for the cassava production.[Method] Germination rate,growth,number of nodes,length of internodes,yield and starch of six cassava varieties including SC9,GR891,SC201,shatian cassava,ZM8229 were analyzed with cultivar South China 205 (SC205) as the control.[Result] The results showed that not only the germination of SC205 (CK) was the fastest and the earliest but also the germination rate the highest,the SC201 was the highest in growth rate,followed by the GR891,with the SC9 was the slowest during the whole stage of growth and development.The SC205 (CK) had the shortest internodes length and the highest number of nodes.SC201 had the longest intemodes length and the least number of nodes.The SC9 out yield was the highest,which increased by 9.14% than the control SC205,and the yield of other varieties were lower than the control SC205,in which the shatian cassava give the lowest.As to starch content,the SC201 was the highest (30.35 %),followed by the GR891 (30.12 %),and which increased by 7.48 %and7.25 % than the control SC205,respectively.[Conclusion] According to the evaluation of comprehensive traits,the best variety was the SC9,followed by the GR891 and SC201,shatian cassava and ZM8229,the poorest was SC205 (CK).