PNABD246.pdf

spot disease of urd bean (Phaseolus mungo). INDIAN JOURNAL OF MYCOLOGY AND
PLANT PATHOLOGY, v.10(2):142-145. jEnj [En Hi Abst] (REP.MB-2671)
Incidence of bacterial leaf spot disease of blackgram (Vigna mungo) was
found during 1976 at Central Farm, Parbhani. The pathogen could infect
Phaseolus vulgaris, Dolichos biflorus, Phaseolus lunatus, Dolichos lablab and
Lens esculentus and could infect its host up to the age of 65 days only.
Variety Krishna proved to be highly resistant and varieties H-70-3 and U-S-131
were resistant. [AS]
£0328 Thakur, R.P. ; Kumar, S. ; Patel, P.N. ; Verma, J.P. 1978. Studies on
virulence of biochemical mutants of Xanthomonas phaseoli mungbean strain.
INDIAN PHYTOPATHOLOGY, v.31(I):52-56. [EnJ tEn Abstj (REP.MB-2077)
Biochemical mutants of Xanthomonas phaseoli mungbean strain (XMB), the
incitant of bacterial leaf spot of mungbean, were isolated by nalidixic acid
(Nal) selection method and their virulence tested. Seven auxotrophs : one
arabinose nonutilizing mutant (XMB Nalr Ara-), two adenine mutants (XMB Nalr
Ade-) and four proline mutants (XMB Nalr Pro-) singly and in various
combinations with auxotrophs or wild type strain (XMB Nal8) and five
prototrophs (XMB Nalr) were inoculated on trifoliate leaves of a mungbean cv.
S-8 following infiltration rub or spray inoculation. Virulence was measured in
terms of incubation period, water soaked lesions, number and nature of leaf
spots produced by the strains. Each mutant either alone or as mixture was
either less virulent or avirulent as compared to the wild type stain. Virulence
of the mutants was explained on the basfs of nutritional factor(s). [ASJ
*0329 Kore, S.S. ; Khandale, D.Y. 1979. A bacterial leaf spot disease of
bean (Dolichos lablab) in Parbhani, Maharashtra. INDIAN JOURNAL OF MYCOLOGY
AND PLANT PATHOLOGY, v.9(2):220-224. [En] (REP.MB-2280)
In a survey, bacterial leaf spot disease of bean (Dolichos lablab) caused
by Xanthomonas phaseoli was observed to the extent of 10-15%. The pathogen
could develop disease on its host up to the age of 60 days only and intensity
of disease was more in younger plants. In an artificial inoculation test the
pathogen could infect Vigna sinensis, V. radiata, Phaseolus vulgaris, Dolichos
biflorus, and P. lunatus but not Glycine max. The fungicide agallol and an
antibiotic, agrimycin, had maximum inhibitory effect on the growth of the
bacterium in vitro. [AS]
*0330 Behniwal, M.S. ; Parashar, R.D. 1981. Evaluation of antibiotics and
fungicides for the control of bacterial leaf spot of mung. v.11(i):36-39.
[Enj [En Abstj (REP.MB-2273)
Among antibiotics and fungicides tested in vitro for inhibition of
Xanthomonas phaseoli mungbean strain, only Chloramphenicol out of 8 antibiotics
and vitavax out of 12 fungicides showed maximum inhibition. The results in vivo
were unlike that in vitro. LAS]
*0331 Rani, N. ; Parashar, R.D. 1981. Studies on nitrogen metabolism in
moong as affected by bacterial leaf spot. HARYANA AGRICULTURAL UNIVERSITY
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