PNABD246.pdf

spread of urdbean leaf crinkle disease under field conditions. INDIAN JOURNAL
OF MYCOLOGY AND PLANT PATHOLOGY, v.9(2):188-192. [En] [En Hi Abst]
(REP.MB-2609)
The nature and rate of spread of blackgram leaf crinkle disease under field
conditions was studied. The low percentage (2.75%) of disease incidence
provided an evidence for a very low rate of spread of the disease. Most of the
disease in the field seems to develop by the seed borne virus though rubbing of
diseased with healthy leaves may serve as a source of spread of the disease,
particularly in the later part of the season. [AS]
*0210 Kolte, S.J. ; Nene, Y.L. 1979. Urdbean (Vigna mungo) leaf crinkle
virus: noteworthy symptoms on host and influence of growth stages on host
susceptibility. TROPICAL GRAIN LEGUME BULLETIN, v.15:5-8. [En] (REP.MB-2143)
Leaflets of blackgram plants infected with leaf crinkle virus were one and
a half times larger than healthy ones. The crinkling induced by the virus
became less severe as leaves became older. Infection increased the percentage
of sterile pollen from 3.63 to 39.18%, while some buds contained 100% sterile
pollen. This resulted in a reduction in pod set and losses in yield of c. 62%.
Inoculation at the early stages of growth gave significantly higher plant
infection than at later stages. [EMS]
*0211 Beniwal, S.P.S. ; Chaubey, S.N. ; Bharathan, N. 1980. Presence of
urdbean leaf crinkle virus in seeds of mungbean germplasm. INDIAN
PHYTOPATHOLOGY, v.33(2):360-361. [EnJ (A:PS)
Mungbean seeds of 49 germplasm collectionss were tested for the presence of
blackgram leaf crinkle virus by growing-on test. Three out of 49 germplasm
collections showed positive seed-borne nature, the rate of its transmission in
seed varied from 6 to 15%. Blackgram leaf crinkle virus is a new addition to
the list of seed-borne viruses in mungbean. [THHJ
*0212 Beniwal, S.P.S. ; Bharathan, N. 1980. Beetle transmission of urdbean
leaf crinkle virus. INDIAN PHYTOPATHOLOGY, v.33(4):600-601. [En] (A:PS)
Three species of leaf-feeding beetles were tested for their ability to
transmit the Pantnagar isolate of blackgram leaf crinkle virus (BLCV). Only one
species, namely, Henosepilachna dodecastigma could transmit the virus. The
Pantnagar isolate of BLCV could not be transmitted by any of the other insect
vector species reported from other Indian states, namely, Aphis craccivora, A.
gossypii, Bemisia tabaci, and Circulifer tenellus. [THH]
*0213 Kadian, O.P. 1980. Studies on leaf crinkle disease of urd bean (Vigna
mungo (L.) Hepper)/mung bean (Vigna radiata (L.) Wilczek) and its control.
Hissar : College of Agriculture. l17p., xiv [En] [En AbstJ (Thesis - Ph.D.
(Plant Pathology)) (SB608.M6K3)
The disease incidence of leaf crinkle virus of mungbean and blackgram was
lower in summer than in fall and was higher on blackgram than on mungbean.
Among the commonly grown cultivars, mungbean cv. Pusa Baisakhi and blackgram
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