The role of gibberellins in improving the resistance of tebuconazole-coated maize seeds to chilling stress by microencapsulation.

ABSTRACT: Chilling stress during germination often causes severe injury. In the present study, maize seed germination and shoot growth under chilling stress were negatively correlated with the dose of tebuconazole in an exponential manner as predicted by the model Y = A + B × e^(-x/k). Microencapsulation was an effective means of eliminating potential phytotoxic risk. The gibberellins (GAs) contents were higher after microencapsulation treatment than after conventional treatment when the dose of tebuconazole was higher than 0.12 g AI (active ingredient) kg^-1 seed. Further analysis indicated that microencapsulation can stimulate ent-kaurene oxidase (KO) activity to some extent, whereas GA 3-oxidase (GA3ox) and GA 2-oxidase (GA2ox) activities remained similar to those in the contr

SUBMITTER: Yang L 

PROVIDER: S-EPMC5098164 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature