Safe wintering and economic and ecological benefit of winter rapeseed in dry and cold areas of northern China. Effects of Environment on Winter Rapeseed in Hexi Corridor Critical Index Analysisof Safe Over-wintering Rate ofWinter Rapeseed (Brassica rapa) in Cold and Arid Region in North China Wind erosion-resistance of fields planted with winter rapeseed in the wind erosion region of Northern China Canonical correlations of light and temperature with yield and agronomic traits of semi-winter rapeseed (Brassica napus L.) sowed in spring Analysis of botanical traits and self-compatibility in winter rapeseed Brassica napus and Brassica rapa and F1 hybrid populations Evaluation of the suitability and influencing factors of winter rapeseed planting in Gansu Province Analysis of agronomic traits of winter rapeseed (Brassica campestris L.) in different ecological areas of North China Analysis of variation in physio-biochemical characteristics and cold resistance in winter rapeseed F2 populations Physiobiochemical Characteristics and Stamen Development Characteristics of LRCMS Flower in Winter Rapeseed (Brassica campestris) Comparison of Winter Rapeseed Varieties (Lines) Different with Cold-Resistance Planted in the Northern-Extending Regions in China under Low Temperature before Winter Effects of Nitrogen Fertilizer and Planting Density on Canopy Structure and Population Characteristic of Rapeseed with Direct Seeding Treatment