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第1期水稻叶鞘腐败病的研究1.病原菌的致病性及发病的影响因子············…… ..............................……,.....····..······……诸葛根樟LaPis,D.B.(1)一种蚜虫持久性传病的长斑豆黄化型病毒············……陈永营郭景荣方中达
The first phase of rice leaf sheath rot disease research 1. pathogenic pathogens and incidence of factors ······································································································································································································ ............... ......, ..... ········································································ .. Sexually transmitted diseases, long-spotted bean yellow virus ... ... Chen Yongying Guo Jingrong Fang Zhongda