Three 7-year-old Simmental crossbred beef cattle(600±100 kg body weight) fitted with ruminal cannulas were used in a 3×3 Latin square design to investigate the effects of different levels of whole cottonseed in diets on rumen fermentation for beef cattle, and to make reference to optimum level of cottonseed in beef cattle diets.

Forage consisted of dried straw and whole cottonseed and concentrate co.

The studies on effects of characteristics of kernel starch and protein and noodle qualities were reviewed,including noodle types,starch properties,protein content and quality,kernel hardness,α-amylase and application of biotechnology in.

Twenty-two wheat varieties grown in eight locations in Shandong province were used for investigating the effects of genotype and environment on wheat kernel hardness, kernel weight and kernel diameter.

Totally,39 leading commercial cultivars were used to investigate the distribution of kernel hardness in Yunnan province.

An improved SDS-PAGE method as a biochemical marker for grain hardness in common wheat;

According to the reported conserved regions of grain hardness-related genes,one pair of specific primers,ForA1 and RevA1,were designed and used to amplify puroindoline a(Pina) from genomic DNA and cDNA of three accessions of Aegilops kotschyi.

Study on the Relationship Between the Ear Characteristic Uniformity and Yield of Super High-yielding Corn;

The application and analysis of the new calculating method of the uniformity in the experiment on preservative qualities of lines or breeds;

Study on the Correlation Between the Ear Uniformity and the Yield of Corn;

The conception of the regularity degree(RD) of crop agronomic traits was redefined based on the studies of the limitation of the index method adopted past.

Variance coefficient method(CVm), reciprocal CVm and regularity coefficient method were used to study the regularity degree of agronomic traits.