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Articles by Tetsushi Yoshida
Total Records ( 2 ) for Tetsushi Yoshida
  M.A. Rahman , T.H. Ansari , M.B. Meah and Tetsushi Yoshida
  Guava anthracnose was found more prevalent during the main season (April-September) than in off-season (November-February). Pestalotiopsis psidii, Colletotrichum gloeosporioides and Botryodiplodia theobromae were established as causal organisms of guava anthracnose. On potato dextrose agar medium, the growth of P. psidii was observed to be too slow as against the very quick growth of B. theobromae. All the pathogens grew well at 28 and 300C except only the P. psidii at 300C. No varieties were found resistant against all three pathogens tested but local variety I, II and IV proved resistant only against Pestalotiopsis psidii both in vitro and in situ. The Pear shaped fruits had less susceptibility than elliptical round fruits. Local varieties were less susceptible than commercial ones. In inoculated condition, variety kanchannagar showed less susceptibility in comparison with the variety sarupkati and kazipayara. Immature fruits of local variety showed decline in ascorbic acid content when diseased.
  Tahmid , H. Ansari , M.A. Malek , M.U. Ahmed , Sota Tanaka and Tetsushi Yoshida
  Effect of Azolla (Azolla pinnata) in combination with mustard oil cake (MOC) was studied on the galling in roots and growth of eggplants (Solanum melongena) inoculated with Meloidogyne javanica. Fresh weight and length of both shoot and root were vigorous when dry Azolla (5g) or fresh Azolla extract (10ml) in mixing with the half standard dose (1.25g) of MOC was applied. Similarly, the galling incidence was lower in the same treatment that was identified for the vigorous growth of the plant. A. pinnata was found as a very effective agent for the normal growth of root and shoot with half-standard dose of MOC. Both of these agents in together created resistance to the plants and its toxic materials might suppress the nematode activity, which ultimately confirm the lower presence of galling by M. javanica.
 
 
 
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