Factors Affecting the Amount of Infection Obtained by Aphis Transmission of the Virus Hy. III

摘要: Much of the information which can be obtained about a plant virus agent is ultimately derived from quantity as well type infections resulting inoculations to suitable host plants. The number ofinfections does not depend solely on nature particular concerned. It dependent other variable factors, such efficiency means infection introducing virus, susceptibility plants receiving it, and concentration in source it was obtained. In this paper a'n attempt has been made estimate effect some these variables by insects.