HJ NDVI cross-calibration for grassland in Northern China Integrated Evaluating and Classifying of the Similarity-difference Analysis for the Generation F2 (BC1) from Saccharum spontaneum ‘Yunnan 82-114’ Regional characteristic analysis of alkaloids and chlorogenic acid in wild Phellodendri Amurensis Cortex Analysis and molecular inheritance mechanism of resistance to insecticides in diamondback moths, Plutella xylostella