Acta Phytopathologica 14. (1979)
1-2. szám
Contents DISEASES Formation and Regeneration of Protoplasts from Phytophthora infestons M. Pesti and L. Ferenczy....................................................................................................... I Secretion of Cytokinins by Helminthosporium turcicum in Liquid Culture R. K. Arora and C. L. Mandahar ..................................................................... 7 Cellulose Decomposition by Phytopathogenic Species of Alternaria (Short Communication) S. K. Hasija, F. Gulyás and .1 Szegi..................................................................................... 13 Occurrence of Charcoal Rot and Anthracnose of Soybeans in Hungary (Short Communication) T. Érsek................................................................................................................... 17 Damping-off and Fruit-rot of Certain Cucurbitaceous Plants in Iraq A M. Tarabeih, A. J. Al-Zarary, S. H, Michail and A. L. B. Shawkat ... 23 Effect of Sclerotinia sclerotiorum on the Volatile Oil Content of Some Medicinal Plants A. M. Tarabeih and I. A. Abou-Ei-Fadl...........................................................................31 Root Rot of Oak in Iraq and Its Control A. M. Tarabeih and A. A. Attrackchi................................................................................ 37 Seed Health Testing, Leaf Spot and Damping-off of Certain Crucifers in Egypt S. H. Michail, О. A. Al-Menoufi and E. A. Abo-Taleb..........................................41 Physiology and Biochemistry of Rice Plants Infected by Pryricularia oryzae, Helminthosporium oryzae, Xanthomonas oryzae and Xanthomonas translucens f. oryzicola R. Sridhar and A. Mahadevan....................................................................................................49 Bacterial Leaf Spot of Johnson Grass Caused by Pseudomonas syrinbae J. Mikulás and S. Sülé .............................................................................................83 Effect of Nalidixic Acid on the Growth of Agrobacterium tumefaciens Strains Isolated from Grapevines J. Lekoczky ................................................................................................................89 Physiology of Bacterial Leaf Streak of Rice: Relationship between Leaf Senescence and Post-Infectional Changes in Detached Rice Leaves R. Sridhar, Susanta K. Mohanty and P. Ranga Reddy..................................95 Identification of some Potato Viruses on Two Capsicum Species Bogomila Kratchanova and Angelina Ivanova............................................ 103 Sensitivity of Some Nicotiana Species to Potato Virus, Y, A and to Alfalfa Mosaic Virus Bogomila Kratchanova, Angelina Ivanova and Tch. Tchavdarov . . . 109 Distribution and Spread of the Cadang-Cadang Disease of Coconut Palm B. Zelazny................................................................................................................................... 115 Problems and Possibilities for Control of Maize Dwarf Mosaic Virus in Hungary I. Milinkó, J. Peti and I. Papp..................................................................................127 New Artificial Hosts and Non-Hosts of Plant Viruses and their Rolein the Identification and Separation of Viruses. VII. Potyvirus Group (Subdivision-I): Bean Common Mosaic Virus, Celery Mosaic Virus and Malva Vein Clearing Virus J. Horváth...........................................................................................................................................133