Therefore using the acute toxicity,cumulative toxicity,mice polychromatic erythrocyte micronucleus rate(PCE MNR) and sperm abnormal rate of the genetic toxicity as markers,we tested the toxicity of the Tibet kefir milk.

This experiment was conducted to study the influence of Ascot Courage Liquid on the ejaculate volume and sperm abnormal rate in boar.

By means of making and observating some instant sections,checking percentage of misshapen spermatozoon in the seminal fluid.

Under the conditions of field and greenhouse, the influence of temperature, water supply and illumination on shooting, growth and abnormal culm rate was investigated.

The results indicated that there were obvious increase of the irregular-fruit-rate(IFR) of fist florescence and significant decrease of fruit-setting-rate(FST),when tomato plant was treated .