Breeding characteristics evaluation of 54 cassava germplasm from Columbia
YE Jianqiu， ZHANG Jie， XIAO Xinhui， WU Chuanyi， XUE Maofu， LI Kaimian
Tropical Crops Genetic Resources Institute， Chinese Academy of Tropical Agricultural Sciences， Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China， Ministry of Agriculture， Danzhou， Hainan 571737， China
Abstract：Resources are the basis for breeding， while evaluation for resources is the prerequisite for breeding， and also the key point for speeding up breeding. In this study， 54 samples that introduced from Colombia were evaluated by field experiment (1 year) in order to determine the production characteristics， the indexes including plant height， diameter， fresh weight， dry rate， starch content， amylopectin content and others. The results showed that CM837， CM2399-4， Colombia 16P， 19S， SG424-19，SM2300-1，SM2323-6，CMR34-11-3，CMR35-70-1 and CMR35-70-1 were the best material for breeding； starch content and growth of CM385-6， CM837，CM3993-9，CM4054-40，PER557，CMR26-07-15，CMR36-40-9，CMR37-14-9 were better but the yield were low， which would be used as breeding materials with high starch content and feeding； yield and quality of CM92-56-1， CM901， CM7595-1 and SM28-80-3 were better， which are able to be used as breeding material for harvesting target.
2017, Vol. 51 
