Response to selection and realized heritability for early growth in the second-generation selected line of pearl oyster Pinctada martensii;

Estimation of realized heritability(h2) of resistance was studied based on the Tabashnik s method.

The realized heritability(h~(2)) estimated from early s.

Inheritance of Resistance to Powdery Mildew in Two Cucumber Varieties;

The inheritance of resistance to methamidophos in brown planthopper, Nilaparvata lugens Stal;

The inheritance of resistance to buprofezin in the brown planthopper, Nilaparvata lugens (Stl),was studied through assaying dose-response data of the third nymphs of resistant (R) and susceptible (S) parents, reciprocal crosses (F-(1) and F~′-(1)), self-bred (F-(2) and F~′-(2)) and backcross (BC) progenies to .

It might be referred on resistance inheritance research, resistance management and fungicide control.

Adopting conventional hybrid approach,the important wheat cultivar Zhongliang 22 in the Southern Gansu of China as the female parent was hybridized with the susceptive cultivar Mingxian 169 as the male parent,so as to study the resistance inheritance of wheat cultivar Zhongliang 22 in seedling plants inoculated with the strains of stripe rust(Puccinia striiformis West.

Research progress of damage, causal organism, measuring criterion, disease resistance evaluation and resistance genetics have been summarized systematically.