EFFECT OF VECTOR MANAGEMENT ON VARIETAL PERFORMANCE AGAINST PLRV AND PVY IN SEED POTATO PRODUCTION
Date
2007-06
Authors
Journal Title
Journal ISSN
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Publisher
HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR
Abstract
Effect of different management practices either alone or in combination on varietal
performance for controlling the aphid vector against PLRV and PVY in seed potato
production was studied in the field during 2006-2007. The experiment was carried out
taking three varieties viz. Granola, Diamant and Cardinal, and eight management
practices viz. Asataf 75SP, Kitchen ash, Neem extract, Furadan 5G, Furadan 5G +
Asataf 75SP, Furadan 5G + Kitchen ash, Furadan 5G + Neem extract and Control. All
the management practices reduced the incidence of aphid vector population and
produced good effect on growth and yield of potato. The highest incidence of aphid
infested plant (5.33/plot) as recorded in control plots of Diamant and that were absent
in all the varieties with the management practice(s), Asataf 75SP and Furadan 5G +
Asataf 75SP. The highest incidence of symptom bearing plant (7.67/plot) was
observed in control plots of Diamant and that was the lowest in Granola (0.51/plot)
with foliar application of Asataf 75SP. The highest yield (35.84 ton/ha) was observed
in Granola in combination with Asataf 75SP and lowest (24.5 ton/ha) in the control
plots of Diamant. The highest yield loss (31.76%) due to PLRV and PVY was
recorded in the variety Diamant. The maximum net return (Tk. 384399.28) with BCR
= 3.51 was obtained in the plots of Granola which received foliar application of Asataf
75SP, while minimum net return (Tk. 100819.11) with BCR = 1.4 was obtained in the
control plots of the variety Diamant.
Description
Potato (Solanum tuberosum L.) is a herbaceous, edible tuber crop belonging to the
family Solanaceae. Its center of origin is said to be Peru and Bolivia (Ahmad,
1977). This crop was introduced to Indo-Pak-Bangladesh by the Portuguese in the
early seventeenth century only about 40 years after its first introduction to Europe
(Swaminathan, 1958). In Bangladesh, the cultivation of potato has been widely
started in the late 19" century (Pushkarnath, 1969). It is a staple food next to rice
and wheat grown almost all over the world and also popular as vegetables as well
as a main item of preparing various food and confectioneries. It is a promising food
crop along with the cheapest source of carbohydrates and furnishes appreciable
amounts of vitamin B, and vitamin C as well as some minerals. It also produces the
highest dry matter per unit area compared to that of other crops (Thomson and’
Kelly, 1957).
Keywords
SEED POTATO PRODUCTION, Land topography and soil, Climate