| dc.contributor.advisor | Prof.Dr.Hasan Fuad EI Taj | |
| dc.contributor.author | REZA, MD. MAMUN | |
| dc.date.accessioned | 2022-04-21T08:56:48Z | |
| dc.date.available | 2022-04-21T08:56:48Z | |
| dc.date.issued | 2013-12 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/425 | |
| dc.description | The sandbars are the large barren lands of Bangladesh and mostly remain unutilized as
they are mainly composed of unfertile sandy soil. In summer these lands always
covered with water but in winter sandbars are visible for four to five months only. The
sandbar area produces no crops in summer due to water increases and occupied this
area. In winter the sandbar area generally remained barren due to poor fertility of soil,
lack of irrigation facilities, poor inhabitants and shortage of other facilities. Some
NGOs have been trying to use the sandbar areas by cultivating crops specially
pumpkins. Presently the sandbar inhabitants are successfully producing the pumpkins
and usually meet up their socio-economic demands. Pumpkins in sandbar are not only
yield well, but they can also be stored, providing food and income throughout the year.
So far, Sandbar pumpkin production is now a flourishing industry of Bangladesh. | en_US |
| dc.description.abstract | The experiment was carried out to explore the insect diversity of sandbar area of Tista
River located at Gangachara upazilla in Rangpur district where pumpkin production has a
great socio-economic impact on sandbar inhabitants. The investigation process was
furnished by visual searching and sweeping net method during winter from January to
April. Few species of insects found in the sandbar pumpkins. Aphid, red pumpkin beetle,
truit fly and lady bird beetle were noticed during the cropping period. The number of
aphids was the highest as compared to other species and no pollinator was observed. The
extent of damage of pumpkins by the insects was observed during the period. Highest
infestation (0.46 — 0.54%) on estimated leaves was infested in mid March to mid April
while the lowest (0.02 — 0.03%) infestation occurred in January to February. The number
of male flowers per plant was more than female flowers and the ranges of male flowers
were 16 to 23 where the female flowers were 5 to 8 per plant. However, the fruit
formation was higher in bee pollinated plant than hand pollinated plants. Bee pollinated
plants produced 2 to 4 fruits per plant while hand pollinated plants produced 2 to 3 fruits.
The number of pumpkin produced from bee pollinated plots ranges from 71 to 76 while it
was 62 to 72 in hand pollinated plots. However, the bee pollinated plots showed the
highest production of pumpkins (628.4 kg). On the contrary, the maximum yield was
from the hand pollinated plots which was 579.1 kg. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | Percent infested leaves at different time in the pumpkin field in sandbar area | en_US |
| dc.subject | Periodical insect abundance of sandbar observed by visual | en_US |
| dc.subject | Insect fauna dynamics of sandbar observed by sweeping net | en_US |
| dc.title | INSECT FAUNA DYNAMICS AND IMPACT OF BEE POLLINATION IN THE SANDBAR PUMPKIN PRODUCTION | en_US |
| dc.type | Thesis | en_US |
