Effects of Additives and Moisture Content on the Quality of Elymus sibiricns L. Silages Polymorphic Analysis of RAPD in Stylosanthes guianensis ’Reyan No.2’ after Spaceship-carried Seed Induction Chemical constituents of Empetrum nigrum var. japonicum Chemical constituents from leaves of wild Aquilaria sinensis Microsporogenesis and Variation in Pollen Size of Populus×xiaozhuanica ‘Baicheng-2’ Breeding of Chamaecrista rotundifolia ‘Minyu 2’ Adaptability of Chamaecrista rotundifolia ‘Minyin 2’ Optim iza tion of Tissue Culture Conditions and Establishmentof Regenera tion System for Popu lus ×eu ram e ricana cl.‘J2’ Effects of Infection with Meloidogyne incognita on Phenylpropanes Metabolism in Two Different Resistant Tomato Rootstock Seedlings Application of Auto-induction System in the Synthesis of 2’-deoxycytidine