PNABD246.pdf

the plant susceptibility and the percentage of seed transmission of BLCV were
reduced as the age of the plants increased. The higher percentage of infection
observed in young infected plants induced a higher rate of seed transmission.
The incubation of BLCV in blackgram plants was positively correlated with the
age of plants at the time of inoculation, but it showed a negative linear
relationship with the percentage of seed transmission of BLCV. The necessity of
protecting the plants at early stages of growth to avoid seed transmission of
BLCV has been discussed. [ASJ
*0206 Narayanasamy, P. ; Jaganathan, T. 1975. Seed transmission of black
gram leaf crinkle virus. JOURNAL OF PHYTOPATHOLOGY, v.82:107-110. [En] [En
De Abstj (REP.MB-0615)
Blackgram plants inoculated with blackgram leaf crinkle virus (BLCV) at
5-day intervals from 5 to 50 days of age showed that plant susceptibility and
percentage of seed transmission of the virus were reduced as the age of plants
increased. The observed higher percentage of infection in young infected plants
induced a higher rate of seed transmission. The incubation period of BLCV in
blackgram plants showed positive correlation with the age of plants at the time
of inoculation, but it showed a negative linear relationship with the
percentage of seed transmission of the virus. The necessity of protecting the
placits at early stages of growth to avoid seed transmission of BLCV has been
suggested. [AS]
*0207 Sivaprakasam, K. ; Jagadeesan, M. ; Kannapiran, C. ; Pillayarsamy, K.
1976. Changes in the mineral content of black gram leaves due to leaf crinkle
virun. MADRAS AGRICULTURAL JOURNAL, v.63(2):123-125. [En] (REP.MB-1995)
Leaf crinkle virus infection increased the phosphorus and potassium content
in blackgram leaves, but decreased the nitrogen, calcium, and magnesium
content. [EMS]
*0208 Beniwal, S.P.S. ; Chaubey, S.N. 1979. Urdbean leaf crinkle virus:
effect on yield contributing factors, total yield and seed characters of
urdbean. SEED RESEARCH, v.7(2):175-181. [Eni [En Abst] (REP.MB-2667)
Infection by blackgram leaf crinkle virus (BLCV) significantly and
adversely affected number of pods per plant and number of seeds per pod in
blackgram cv. Pant U-30 and Pant U-26, whereas 1000-seed weight remained
unaffected. The total seed yield was also significantly affected by BLCV
infection at different stages of plant growth in both the vaieties. Maximum
yield reduction of 70.7 and 83.8% was caused by infection occurring at 10 days
after planting (DAP) in Pant U-30 and Pant U-26, respectively, which was
progressively and significantly reduced with each delay in infection up to 60
DAP, and caused only 18.0 and 13.2% losses in yield in Pant U-30 and Pant U-26,
respectively. The BLCV infection resulted in the production of shrivelled and
light brown-coloured seed, early infected plants producing maximum percentage
of such seeds. The virus caused production of oversize seeds though the average
seed size and emergence remained unaffected. [AS]
*0209 Beniwal, S.P.S. ; Kolte, S.J. ; Nene, Y.L. 1979. rature and rate of
53