PNABD246.pdf

Protomycopsis Magnus and family Protomycetaceae are discussed in the light of
these observations. [AS]
*0402 Menancio, D.I. ; Ramirez, D.A. 1977. Genetic polymorphiss and
ontogenetic isozyme patterns of Cercospora leaf spot resistant and susceptible
varieties of mungbean. PHILIPPINE JOURNAL OF CROP SCIENCE, v.2(4):197-202.
[En] [En Abst] (REP.MB-1823)
(NOTE: The article was also presented at the 1st International Mungbean
Symposium, Aug 16-19, 1977)
Eleven varieties of Vigna radiaLa (L.) Wilczek and V. mungo (L.) Hepper
were examined for peroxidase and catalase polymorphism at different ontogenetic
stages using starch gel electrophoresis. Six varieties are resistant to
Cercospora leaf spot and five are susceptible. Enzyme polymorphism was observed
for peroxidase and catalase beginning the second week after germination. Six
isoperoxidase patterns and two isocatalase patterns were detected in the 11
varieties. Identical isocatalase pattern was exhibited by the resistant and the
susceptible varieties of V. radiata and was different from that of V. mungo. On
the other hand, significant varietal differences in isoperoxidase patterns were
observed and isoperoxidases 4 and 5 (Px 4 and Px 5) were found to be associated
with resistance to Cercospora leaf spot. Peroxidase polymorphism may,
therefore, be used as a selection index for resistance to Cercospora leaf spot
of mungbean and that the selection process should be undertaken during the
stages when Px 4 and Px 5 are detectable: vegetative and pod-bearing stages.
[AS]
*0403 Singh, B.M. ; Sood, A.K. ; Saharan, G.S. 1978. Occurrence of a leaf
spot and blight of black gram caused by Colletotrichum dematium. INDIAN
PHYTOPATHOLOGY, v.31(1):100-101. [En] (REP.MB-2078)
A severe outbreak of a leaf spot of blackgram was observed during August,
1975, at the University farm of the College of Agriculture, Palampur. The
pathogen was identified as Colletotrichum dematium which has not been reported
as a pathogen of blackgram in India or elsewhere. [THHj
*0404 Singh, D.V. ; Singh, R.R. 1978. Field evaluation of fungicides for
the control of Cercospora leaf spot of green gram. PESTICIDES, v.12(6):28-29.
[Eni [En Abstj (REP.MB-2419)
Leaf spot (C. canescens) of mungbean was effectively controlled by two
sprayings of Bavistin or Benlate (0.5 kg/ha) at an interval of 15 days with
corresponding increase in yield. Other fungicides, viz., captan and zineb also
reduced the disease intensity, but were more or less similar to the control in
yield. [AS]
*0405 Beniwal, S.P.S. ; Tripathi, H.S. 1979. Leaf spot of urdbean caused by
Fusarium equiseti (Corda) Sacc. TROPICAL GRAIN LEGUME BULLETIN, no.16:15-16.
[En] (A:PS)
A leaf spot fungus on blackgram was identified as Fusarium equiseti (Corda)
Sacc. The pathogen causes round to irregular brown leaf spots, 2-3 mm in
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