| dc.contributor.advisor | Professor Dr. Bhabendra Kumar Biswas | |
| dc.contributor.author | AFROZE, SADIYA | |
| dc.date.accessioned | 2022-04-23T04:33:51Z | |
| dc.date.available | 2022-04-23T04:33:51Z | |
| dc.date.issued | 2014-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/562 | |
| dc.description | Rice is the principal food crop and extensively grown cereal in the tropical and
subtropical regions of the world. It is the seed of a monocot plant, Oryza sativa
(Asian rice) or Oryza glaberrima (African rice). As a cereal grain, it is the most
widely consumed as the staple food for a large part of the world's human
population, especially in Asia and the West Indies. It is the world’s most important
crop and a major source of nutrition for about two-thirds of humans (Vaughan et
al., 2003) and it is the staple food consumed by more than half of the world
population, three billion of which are Asian (Waghmare et al., 2008). More than
90% of rice cultivation is well suited to countries and regions with low labor costs
and high rainfall, as it is labor intensive to cultivate and requires ample water. Rice
can be grown practically anywhere, even on a steep hill or mountain. Although its
parent species are native to Asia and certain parts of Africa, centuries of trade and
exportation have made it common place in many cultures worldwide. Rice is
extensively cultivated in our country over a large area covering about 74% of the
total human calorie intake; about 10.77 million hectares of land is used for rice
cultivation, which produces 25.18 million metric tons of rice (Latif et al., 2011).
For most developing countries, rice is the basis of food security and is intimately
associated with traditional cultures and customs in local regions (Lu and Snow,
2005). However, the important events of the investigation are described under the
following items | en_US |
| dc.description.abstract | A total of twenty fine grain rice cultivars including fifteen land races, three
developed (Paijam, BR-49 and BR34) and two exotic (Philippine katari and
Ranjit) varieties were collected from different parts of Bangladesh to
identify the yield enhancing characters and to select desirable cultivars with
high yield potential and high aroma emission from rice grain. The
experiments were conducted in Aman season in 2013, in the Plant Breeding
Research Field, Hajee Mohammad Danesh Science and Technology
University (HSTU), Dinajpur. Genetic variation for yield (t/ha) and other
fourteen yield related characters like, plant height (cm), panicle length (cm),
panicle weight (gm), total tillers/plant, effective tillers/plant, rachilla/
panicle, sterile grain/panicle, total grain/panicle, 1000-grain weight (g), grain
length (mm), grain breadth (mm), aroma content (%), days to 50% flowering
and days to maturity, was estimated. All the characters showed high
heritability value except total tillers/plant, indicated better progress under
selection. High heritability (96.278%) was revealed by days to maturity,
suggested that the character would be less affected by the environment.
Among all the cultivars the cultivar, Ranjit produced the highest yield
(4.940t/ha). In addition, aroma emission from grain was assessed. The
highest aroma contents in Kalozira (35%) and Kalosoru (30%) was
estimated. The highest yield (4.940t/ha) was obtained from Ranjit and it was
statistcally similar with the yields of Bolder (4.277t/ha), Malsira (4.157t/ha),
Kalozira (4.133 thha) and BR-49 (4.017 t/ha). The simultaneous
consideration of yield potential and aroma emission from rice grain, four
cultivars viz. Kalozira, Radhunipagol, Badshabogh and Chinigura may be
advanced for commercial cultivation by the farmers and agriculture
entrepreneurs and may be incorporated in further breeding for the
development of high yielding fine rice varieties but the highest amount of
aroma emission (35%) and yield (4.133t/ha) indicated that Kalozira was the
best aromatic rice cultivar. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | RICE CULTIVARS IN BANGLADESH | en_US |
| dc.subject | Rice production in Bangladesh | en_US |
| dc.subject | Variability and diversity in rice | en_US |
| dc.title | SELECTION OF HIGH YIELD POTENTIAL AND HIGH AROMA CONTENT FINE RICE CULTIVARS IN BANGLADESH | en_US |
| dc.type | Thesis | en_US |
