Relationships between changes of active oxygen scavenging system of wheat under drought and chilling cross-stress and cross-adaptation;

Research Advances on Mechanism of Cross-adaptation to Temperature Stresses in Plants;

The cross-adaptation to harmful environment of plant;

The results of cross adaptation showed that,the resistance to drought,chilling,heat and salt stress of maize seedlings was improved through short-term drought pretreatment,the resistance to stress and survival rate of maize were also improved,while EL and the content of MDA were reduc.

Jingxiu) were used as experimental materials to study on the mechanisms of cold-resistance induced by heat acclimation (HA) or heat-tolerance induced by cold acclimation (CA), and probe the mechanisms of cross adaptation to the temperature stresses in grape plants.

It makes use of the improved adaptive crossover operator and the adaptive mutation operator, and combines with a kind of fitness function that considers the balance of the performance target and the .

Through the combination of the phased crossover and the cosine adaptive crossover, the double adaptive crossover got the crossover probability.

After studying the traditional genetic algorithms for image segmentation based on the maximum interclass variance,an improved genetic algorithm,"double self-adaptive crossover probability" genetic algorithm,is proposed based on chromosomes and gene positions.

Firstly, the architecture of the artificial network was improved by the adaptive crossover mutation and elitist model.