With the potato variety Xishu 1as the test materials,this paper adopted tissue culture to study the effect of Pb and Cd stress with different mass fractions on
[Objective] The occurrence regularity and mating rhythm of overwintering adults of Tessaratoma papillosa on longan tree were studied in the paper, so as to prov
The fecundity and spawning locations of rice planthoppers in several rice varieties were surveyed in the test.The results showed that spawning behavior of rice