Studies on the chemical constituents from culbs of hybridized Bulbus Fritillariae Ussuriensis A Cytological Study on Two Hybridized Combinations of Magnoliaceae THE HYBRID SUPERIORITY OF GASTRODIA ELATA A New Hybrid Longan Variety‘Dongbao 9’ A New Hybrid Longan Variety‘Dongbao 9’ Effect of different nitrogen rates on yield and quality parameters of high grade yellow seed hybrid rape A Cytological Study on Two Hybridized Combinations of Magnoliaceae