Identification and analysis of core rice parents resistance to rice sheath blight in south rice production regions of China;

Isolation of Rhodopseudomonas rutila from the rice root and its physiological and ecological properties;

Soil culture experiment was conducted to study the effect of rice root aerenchyma on root iron plaque by Jiahua 1 this kind of geno-type rice.

Pot experiments with middleseason rice Peiliangyou93 on the effects of dicyandiamide (DCD) on rice root system,photosynthetic and economic characteristics are conducted,which shows that the total volume of root system is enhanced significantly and root absorbed characteristics are improved under low dicyandiamide concentration of 7.

Theory of ecological-genetical male sterility and hybrid plants produced by two-line method Ⅶ.The fertility alteration mechanism for self-line of rice CMS line Ⅱ-32A;

Effects of ammonium uptake on the changes of plasma membrane potential of rice roots;

The intensity of N,P,K absorption of rice roots increased gradually with plant growth Itreached the peak during the panicle developing stage,then decreased.

Rice roots stratified by fractal dimension was established based on the fractal dimension of the spatial distribution of rice roots model.