PNABD246.pdf

Twelve varieties of blackgram were evaluated for resistance to the mungbean
yellow mosaic virus for two consecutive kharif seasons of 1972 and 1973. Only
three varieties, Mash 48, Selection 1, and L35-5, were free from infection and
other 3 varieties, UPAU 2, 338/3, and B 76 appeared to be fairly resistant.
[THHJ
*0067 Mew, I.P.C. ; Wang, T.C. ; Mew, T.W. 1975. Inoculum production and
evaluation of ungbean varieties for resistance to Cercospora canescens.
PLANT DISEASE REPORTER, v.59(5):397-401. [Enj [En Abstj (AVRDC/JP/5)
(REP.MB-368)
Leaf spot caused by Cercospora canescens is a major disease of mungbean in
most of Southeast Asia. In cultural studies, using different media, the
pathogen produced conidia readily, but not abundantly, on potato-dextrose agar.
Carrot leaf juice-oatmeal agar was best for sporulation, followed next by
mungbean leaf juice-oatmeal agar. Between 15 and 28 C, the number of conidia
formed was positively correlated with temperature, and their production was
promoted by light. When a spore suspension (2000 conidia/ml) was sprayed on
susceptible varieties at different stages of growth, the plants showed no
difference in response up to the flowering stage, but lesion severity increased
sharply from the flowering stage onward. Three of 200 accessions were
consistently resistant to Cercospora leaf spot throughout 3 consecutive
screening periods: fall 1973, spring 1974, and summer 1974. [ASJ
*0068 Haware, M.P. ; Pavgi, M.S. 1976. Field reaction of blackgram and
greengram to angular black-spot. INDIAN JOURNAL OF AGRICULTURAL SCIENCES,
v.46(6):280-282. [Enj tEn Abstj (REP.MB-1260)
Thirteen varieties each of blackgram (Vigna mungo) and mungbean (Vigna
radiata) were tested in the field for resistance to angular black-spot disease
caused by Protomycopsis patelii Pavgi and Thirumalachar. Only 2 varieties of
blackgram were highly resistant. 3 mungbean were immune, 6 highly resistant,
and 2 moderately susceptible. [AS]
*0069 Rath, G.C. ; Mishra, D. 1976. Varietal reaction of Phaseolus aureus
to Sclerotium rolfsii. INDIAN JOURNAL OF MYCOLOGY AND PLANT PATHOLOGY,
v.5(2):216. [EnJ (REP.MB-2428)
In pot trials with 20 varieties of mungbean, only No.305 showed resistance
to Sclerotium rolfsii. JTHH1
*0070 Singh, D.V. ; Singh, R.R. ; Mishra, A.N. 1976. Search for sources of
resistance to powdery mildew in black-gram. CURRENT SCIENCE, v.45(17):b41.
[En] (REP.MB-1037)
The results of field and glass house testing of 306 varieties and strainu
of blackgram under epiphytotic conditions for three years (1972, 1973 and 1974)
are reported [THHJ
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