Effects of artificial aging treatment on the physiological and biochemical characteristics of rice seeds
8 rice varieties,including LQ183,LQ189 and LQ192 were used as materials,the artificial simulation of seed aging method(temperature 43℃,humidity 99%)was adopted,to investigate the changes in leaching conductivity,peroxidase(POD)activity,and single nucleotide content of aged rice seeds,and investigate the effects of artificial aging treatment on their physiological and biochemical characteristics.The results showed that there was a statistically significant difference in the conductivity of rice seed leachate with different aging treatment days(P<0.01),and the conductivity of the leachate gradually increased with the extension of aging days;The POD enzyme activity showed different trends with the extension of aging days,but ultimately showed a decreasing trend;The content of single nucleotide did not show a significant linear relationship with the extension of aging treatment days;With the gradual extension of aging days,seed vitality gradually decrease,and the content of malondialdehyde(MDA)inside the seeds will gradually increase;The trend of soluble protein content in rice seeds varies among different varieties,with some varieties showed an increase followed by a decrease,while others showed a decrease followed by an increase;The soluble sugar content of rice seeds was on the rise.It was found that the conductivity of the leachate,MDA content,and soluble sugar content of seed leachate could be important indicators for evaluating the quality and storage tolerance of rice seeds.
artificial agingrice seedsphysiological and biochemical characteristicsstorage characteristics
NETL
NSTL
万方数据
