The results showed that Qianyou 301 had the good cold tolerance and high-stable yield and the yields of most rice varieties dropped because of cold weather at the heading period,but the yield of Qianyou 301 increased on a large-scale because of its good cold tolerance in 2002.

Yinong 1,a new indica hybrid combination with high-yield and cold tolerance was developed by Zunyi Institute of Agricultural Sciences from the cross between a CMS line K17A and a restorer line R866.

Through the determination of relative electric conductivity and the observation of leaf wilting degree,the chilling tolerance degree of different germplasm was identified,and 14 chilling tolerant corn germplasms were selected including 8 sweet corn germplasms and 6 waxy corn germplasms,which supplied the new germplasm with chilling tolerance for special corn breeding.

Study on characteristic and efficiency of immobilizated psychrotrophs biofilm;

Biofilm characteristics of psychrotrophs for low-temperaturesewage treatment;

Study of psychrotrophs separation from ESBR run in low temperature;

This paper described factors discussed regarding freeze-tolerance of baker's yeast.

The determination methods of freeze-tolerant ability in baker's yeast were discussed in this pa- per.

Adhesion process and reversible adhesion kinetics of psychrotrophs;