Ecophysiological mechanism of photoperiod affecting phenological period and spike differentiation in oat (Avena nuda L.) Sensitivity of response of winter wheat to climate change in the North China Plain in the last three decades The physiological effect of the different phenological period Ledum palustre subsp. decumdens on low temperature stress Effects of Fencing and Grazing on Caragana tibetica Seed Production GIS-based three-dimensional space evolution of analysis from Gossampinus malabarica phenological phase in Guangxi Impact of climate change on potential productivity and phenological phase of forage in the Qinghai-Tibet Plateau in the past 50 years Primary Evaluation of Brachiaria Spp.Production and Nutritional Value Study on the relation between the dynamic accumulation of secondary metabolites and the phenological period of Eucommia ulmoides Oliv. AN INVESTIGATION ON THE SPORE MATURE PERIOD OF PTERIDOPHYTE IN HEILONGJIANG PROVINCE OF CHINA