PNABD246.pdf

phosphorus and total phosphorus showed the reverse trend. ITHH]
*0260 Singh, A.K. ; Srivastava, S.K. 1985. Effect of urd bean mosaic virus
infection on the yield and chemical composition of urd bean fruits. INDIAN
PHYTOPATHOLOGY, v.38(i):85-89, [En] [En Abst] (A:PS)
Blackgram mosaic virus infection was found to reduce the number of
pods/plant, and seeds/pod in blackgram (Vigna mungo) cv. Type-9. The seed
weight was also adversely affected. The percent yield loss was higher in early
inoculated plants in comparison to mid- and late-inoculated ones. Virus
infection increased the nitrogenot, fractions except ammoniacal nitrogen (total
nitrate, nitrite nitrogen, total free amino acids and protein) in comparison to
healthy ones. Carbohydrate fractions (total reducing sugar, non-reducing sugars
and starch) were decreased in virus-infected fruit parts. All the phosphorus
fractions were also reduced in diseased fruit parts. [AS]
- Mottle Virus and Mosaic Mottle Virus
*0261 Singh, R.N. ; Nene, Y.L. 1977. Diagnostic symptoms of mosaic mottle
disease of urd bean (Phaseolus mungo L.). SEEDS AND FARMS, v.3:23-25. [En]
[En Abst] (REP.MB-2418)
The mosaic mottle disease of blackgram (Vigna mungo) is characterized by
conspicuous reduction in the size followed by a typical mosaic mottle of
trifoliates, partial or complete modification of the infloresences into
vegetative structures and stunting and bushy appearance of infected plants.
While typical mosaic mottle symptoms on the leaves are more pronounced in the
glasshouse (20 to 26 [plus or minus] 2 C), the stunting and bushy appearance of
the plants is more so in the field. Characteristic symptoms on the primary
leaves and on first and second trifoliates have been described, in the case of
plants originating from infected seeds, which would be helpful in screening the
seed lots by growing on test against infection with bean common mosaic virus.
[AS]
*0262 Sun, M. ; Lai, P.L. ; Yan, L.P. 1977. Mungbean mottle virus, a new
pathogen of mungbean [Abst.]. AMERICAN PHYTOPATHOLOGICAL SOCIETY, PROCEEDINGS,
v.4:91-92. [En] (REP.MB-2368)
MEETING: Annual Meeting of the American Phytopathological Society, 69th --
USA, 1977
Mungbean plants, Vigna radiata, with symptoms and deformed leaves were
observed in fields in Taiwan. The incidence of diseased plants was high (70 ­
80%) in spring plantings but low (1 - 5%) in fall plantings. Flexous rod-shaped
particles and pinwheel inclusions were found in sap and in thin sections,
respectively, from diseased plants. A virus purified by chloroformbutanol
clarification, polyethylene glycol precipitation and density gradient
centrifugation had 13 x 750 nm particles that were infectious (by mechanical
inoculation) in Vigna radiata, Chenopodium amaranticolor, C. quinoa, Phaseolus
vulgaris, P. acutifolius, V. sinensis cv. Susquipedalis and Nicotiana
glutinosa. Vigna radiata, V. sinensis cv. Susquipedalis and Chenopodium spp.
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