Genetic Analysis on Flowering and Boll Setting in Upland Cotton(Gossy pium hirsutum L.)  Ⅱ. The Genetic Behavior of Different Fruiting Sites The Differential Expression Characteristics of miR319 and Four Targets Response to Low Temperature Treatments in Two Cassava Varieties Spatial-temporal distribution of net primary productivity and its relationship with climate factors in Inner Mongolia from 2001 to 2010 Analysis on the relation between the structural characteristics of plant communities and the microclimate effects in Nanning City, China