| dc.description.abstract | A field experiment was conducted at the farmers field located at Nekmarad,
Ranishankoil, Thakurgoan from September 04, 2019 to February 29, 2020 to find out the
growth and yield performance of different potato varieties to early heat condition. Fifteen
potato varieties viz. Carolus, Granula, Farida, Taisiya, BARI Alu-41, Aloutte, Zina red,
BARI Alu-72, Columba, Memphis, Fortus, Cimega, 747, Asterix and Diamant were
considered in this experiment. The experiment was conducted in Randomized Complete
Block Design (RCBD) with three replications. Uniform cultural practices were adopted
for all treatments. Significant differences in growth and yield parameters were observed
among the varieties. Results revealed that the variety 'Taisiya' took the maximum days
(14.67 days) for start emergence whereas, the minimum (10 days) was taken by 'Cimega'.
In case of eighty percent emergence, 'Granula' was the early to 80% emergence variety
whereas, 'Zina red' was the late one. The emergence percentage of the variety 'Granula'
was maximum (99.44%) at 30 days after planting (DAP) and the minimum (50%) was
measured from 'Cimega'. The longest plant height (110.2 cm) was measured at 60 DAP
from '747' variety whereas the shortest one (74.53 cm) from 'Aloutte'. The maximum
stem numbers hill-1
(7.73) was obtained from the variety 'Zina red' at 60 DAP and
minimum (3.27) was obtained from 'Granula'. At 60 DAP, the maximum percentage of
foliage coverage plant-1
(96.00%) was observed from the variety 'Carolus' whereas the
minimum number (81.00%) was observed from 'Zina red'. Result also revealed that the
maximum number of tuber (13.67) was recorded from the 'Cimega' variety whereas, the
minimum (4.33) was obtained from the 'BARI Alu-72' variety. The maximum average
tuber weight (455.33 g) was recorded from the 'Carolus' variety whereas, the minimum
(193.00 g) was obtained from the 'Memphis' variety. The highest tuber yield (30.36 t ha1
) was obtained from the variety 'BARI Alu-41' while the minimum (12.87 t ha-1
) was
found from the 'Memphis'. In case of quality parameter, the maximum dry matter content
of tuber flesh (22.10 %) was recorded from the variety 'Fortus' which statistically similar
with 'Diamand' (21.52 %) whereasthe minimum tuber flesh dry matter content (13.56 %)
was recorded from 'Aloutte'. Numerically the highest specific gravity (1.0827 g cm-3
)
was obtained from the 'Diamand' whereas, the lowest (1.0420 g cm-3
) specific gravity
was found from the 'Memphis' variety. Considering the results of the present experiment,
it may be concluded that early heat condition had potential effect on growth and yield
performance of potato. | en_US |
