摘要：An experiment was carried out to appraise the effect of seed priming treatment with Mg(NO 3 ) 2 against various levels of externally imposed moisture stress by polyethylene glycol-6000 on phytotoxicity in shoot and root and chlorophyll content in maize plant under laboratory conditions. The phytotoxicity of shoot and root was increased as the elevated levels of PEG-6000 towards T 1 to T 4 (i.e. 1.5 to 4.5 %, Set-I) as compared to control set (T 0, i.e. without treated set), while the least values of phytotoxicity were recorded in T 5 and onwards increased slowly up to T 8 (i.e. 1.5 to 4.5 % of PEG-6000 + primed seed, Set-II). The same trend of phytotoxicity was recorded for both the plant parts at both the times of observations, i.e. shoot and root 120 and 240 hours. The chlorophyll content of shoot was recorded in decreasing trend onwards from T 1 to T 4 in treatment set-I as compared to T 0, i.e. control. While the highest amount of chlorophyll content was recorded in T5 followed by T6 as compared to the rest of the treatments.
