| dc.description | Potato (Solanum tuberosum L.) is a perennial Solanaceaeous crop. It is a
herbaceous, succulent and dicotyledonous plant with alternate stolons
underground as well as alternate leaves on the stem above ground. It is
originated in the Andes near the border of Peru and Bolivia in South America
(Rowe and Randall, 1993) and in Bangladesh the cultivation of potato is started
in the late 19" century (Hashem, 1990).
At present potato is the fourth important food crop in the world (Li, 1985) with
a harvested area of 18.89 million hectares and a production of 311 million tons
(FAO, 2003). During 1997 — 2003 average potato production was 15.88 MT ha”
and the highest yield (42.75 MT ha’') was obtained in New Zealand and the
lowest (2.0 MT ha’') in Switzerland (FAO, 2003). | en_US |
| dc.description.abstract | A field experiment was conducted at the Horticulture Farm, Hajee Mohammad
Danesh Science and Technology University, Dinajpur during November 2006 to
February 2007 to study the effects of Mg and B on growth, yield and quality of
potato cv. Diamant. There were four levels of Mg namely, 0, 8, 10 and 12kg Mg
ha’! and also four levels of B viz. 0, 1, 2 and 3kg B ha" in the experiment. The
parameters studied were days required to first emergence and 80% emergence,
plant height at different DAPs, number of leaves hill"! at different DAPs, number
of main stems hill’, fresh weight of haulm hill, dry matter content of tuber,
number of tubers hill', yield of tubers hill’, yield of tuber plot’! as well as
hectare” and percent grades of tubers by number and weight.
The results of the present experiment clearly revealed that fresh weight of haulm
hill’, number of main stem hill’', number of tubers hill, yield of tuber plot” and
hectare’ were maximum in the Mg>B, treatment combination while — the
minimum in the control one. The effects of Mg and B on days required to first
emergence and 80% emergence, number of leaves at 45 and 60 DAPs were
insignificant. The main effect of Mg on plant height, number of leaves at 75 and
90 DAPs, fresh weight of haulm hill', dry matter content and yield of tubers
were also significant. The single effect of B on plant height, number of leaves,
number of main stems hill”, fresh weight of haulm hill, dry matter content,
number of tubers hill and yield of tubers ha' were significant too. Increase in
the doses of Mg and B resulted significant increase in growth and yield of
tubers. The highest yield of tubers (25.92 ton ha') was obtained from the
moderate dose of Mg (10kg Mg ha’). The plant receiving the highest dose of B
(3kg B ha’') produced the highest tubers (27.16 ton ha’). The maximum yield
(28.21 ton ha’) was obtained from the treatment combination Mg»B, showing
46.92% higher yield over the control one. The lowest yield (19.20 ton ha”) was
experienced in the control plot. All grades were significant except the A grade
by number and weight | en_US |
