PNABD246.pdf

analysis of variance indicated a significant difference at the 5% level for
entries in mean gall indices. The six least galled entries fell within the
first range of Duncan's New Multiple Range Test, but had gall indices from 3.8
to 4.3 on the 1-to-5 gall indices. All except tile 3.8 scoring entry were fully
within the severely galled category. A serious problem of high mortality from
fungal infection in mungbean seedlings existed throughout the study. Many
variations in technique were used, attempting to control the high level of
fungal infection in mungbean seedlings. No combination of precautions against
fungi gave consistent results. Seedlings grown in plastic growth pouches with
distilled water suffered no losses. The growth pouch should be used in further
screening as a preliminary method from which the least susceptible accessions
could be selected for more extensive testing. [AS]
*0055 Nene, Y.L. ; Srivastava, S.K. ; Naresh, J.S. 1972. Evaluation of
blackgram (Phaseolus mungo Roxb.) and greengram (Phaseolus aureus Roxb.)
varieties and germplasms for resistance to yellow-mosaic virus of green-gram.
INDIAN JOURNAL OF AGRICULTURAL SCIENCES, v.42(3):251-254. [Enj [En AbstJ
(REP .MB-U2Ob)
Fifty-two germplasms and 15 varieties of blackgram (Vigna mungo) and 198
germplasms and 17 varieties of mungbean (V. radiata) were evaluated for
mungbean yellow mosaic virus. The varieties were planted in randomized-block
design, and the germplasms in rows alternated with susceptible controls, viz.,
'No. 55', 'Khargaon 3' or 'Gwalior 18' in blackgram, and 'Jalgaon 781' in
mungbean. Artificial screening of promising material was done at the
pre-flowering stage by covering tile rows with muslin-cloth cages of 60 cm x 90
cm x 120 cm and releasing 300 viruliferous whiteflies in each cage. In
blackgram, resistant reaction was represented by a restricted and spotty
pattern of yellow area on leaf knecrotic mottle) and susceptible reaction by
yellow diffused area, later covering the entire lamina (yellow mottle). In
mungbean such a distinction was not observed. In blackgram a selection from the
variety 'D b-7' was found highly resistant. In mungbean none of the material
tested was found resistant. [AS]
*0056 Deshkar, M.V. ; Khare, M.N. ; Joshi, L.K. 1973. Paper towel method: a
rapid technique for testing susceptibility to Rhizoctonia batataicola (Taub.)
But. JNKVV RESEARCH JOURNAL, v.7k4):300-301. [EnJ (REP.MB-1967)
A new, simple, rapid technique was developed for screening mungbean
varieties for resistance to Rhizoctonia bataticola by bringing one surface of a
sterilized paper towel in contact with a previously prepared suspension of R.
bataticola. Surface-sterilized seeds of mungbean are then dipped in the
inoculum suspension and placed on the paper towel which is then transferred to
a moist chamber and kept for three days at 25-28 C. Healthy germinated seeds
may be transferred to pots containing infested soil for further screening. [THHJ
*0057 Dey, S.K. ; Singh, D.R. 1973. Resistance test of mung (Phaseolus
aureus L.) against yellow mosaic in Uttar Pradesh. INDIAN JOURNAL OF FARM
SCIENCE, v.1(1):113. [En] (REP.MB-2445)
In all, 496 varieties of mungbean were screened in the field and glass
house. Only 2 cultivars, viz., P 364-68 and P 366-68 were found to be resistant
to yellow mosaic virus. [THH]
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