PNABD246.pdf

A survey of different districts of Haryana during the summer and kharif
seasons of 1975, 1976 and 1979 revealed that the leaf crinkle disease on
blackgram and mungbean was less in summer than in kharif. The disease increased
year after year throughout the State. The disease was more in the northern than
in the southern region of the State. [AS]
*0226 Kadian, O.P. 1983. Studies on weed plants as host range of urdbean
leaf crinkle virus. HARYANA AGRICULTURAL UNIVERSITY JOURNAL OF RESEARCH,
v.13(4):602-603. [En] (REP.MB-2579)
Of 23 weed species tested, 5 were infected by blackgram leaf crinkle virus.
Infection was systemic in Convolvulus arvensis and localized in the four Datura
species: D. stramonium, D. metal, D. metaloides, and D. incrimis. It was also
observed that disease incidence on blackgram was higher in fields where C.
arvensis was prevalent than in fields free from it. [THHJ
*0227 Sharma, I. ; Dubey, G.S. 1983. Histological changes in urdbean
flowers due to urdbean leaf crinkle virus infection. ZEITSCHRIFT FUR
PFLANZENKRANKHEITEN UND PFLANZENSCHUTZ, v.90(i):63-67. [EnJ [En De AbstJ
(REP.MB-2688)
Blackgram leaf crinkle virus (BLCV) induced a variety of histological
changes in the flowers of blackgram plants. The notable changes observed
included degeneration of androecium and gynoecium, incomplete development of
pollen grains in pollen tetrads, non-formation of ovules and abnormal ovarian
cavity. These histopathological abnormalities are corraborated with the pollen
sterility and loss in pod setting by BLCV-infected blackgram plants. [AS]
*0228 Beniwal, S.P.S. ; Chaubey, S.N. ; Bharathan, N. 1984. Detection of
urdbean leaf crinkle virus in urdbean seeds. SEED RESEARCH, v.12(I):1O1-104.
LEnj [En AbstJ (REP.MB-2641)
Three methods, viz., dry examination, growing-on test and
indicator-inoculation test, are described for detection of blackgram leaf
crinkle virus in blackgram seeds. The dry examination could serve as a good
indicator of the presence of the virus if oversize seeds are present in the
seed lot which could be confirmed by growing-on and indicator-inoculation tests
described in this paper. [AS]
*0229 Sharma, I. ; Dubey, G.S. 1984. Control of uridbean leaf crinkle virus
through heat treatment, chemotherapy and resistance. INDIAN PHYTOPATHOLOGY,
v.37(I):26-30. [En] [En AbstJ (A:PS)
The seed-borne blackgram leaf crinkle virus was completely eliminated by
treating blackgram seeds in a waterbath for 30 minutes at 55 C without
affecting seed germination. Similarly, pre-inoculation drenching of blackgram
plants with 1.0% suspension of Benlate or Bavistin fully checked the disease.
Thiouracil, and decoctions of tea and coffee delayed symptom appearance. Plants
sprayed with IAA and IBA gave higher percentage of infection. On artificial
inoculation, HPU 27, 102, 1b4 and 315 of blackgram cultivars were found highly
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