| dc.contributor.advisor | Professor Bhabendra Kumar Biswas | |
| dc.contributor.author | HABIBA, UMME | |
| dc.date.accessioned | 2022-04-23T05:34:02Z | |
| dc.date.available | 2022-04-23T05:34:02Z | |
| dc.date.issued | 2009 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/588 | |
| dc.description | Rice (Oryza sativa L.) is the staple food for the people of Bangladesh as well as
for three billion people of the world and it is, therefore, playing an important role
in the national economy of many developing countries (Trans!”, 2001). Globally
rice is the second most important cereal crop after wheat in terms of area,
production and consumption. Among the major rice growing countries of the
world, Bangladesh ranks 3™ in respect of growing area and fourth in production
(Huke and Huke*’, 1990). Agriculture in Bangladesh is characterized by intensive
crop production with rice based cropping systems. About 40% of the world’s
population consume rice as a major source of calorie (Banik'®, 1999). In
Bangladesh, rice is cultivated in 10.579 million hectares having the average yield
of 2.58 metric tons ha” with the production of 27.318 million in the year 2006-
2007 (HAS*®, 2007). Rice, the staple food of the Bangladesh is cultivated in the
75% of the cultivable land (BBS'', 2002) and contributes 9.05% of the natural
gross domestic product (BBS, 2004). The agricultural land of Bangladesh is
being decreased by about 1% per annum (Husain® et al., 2006) while the
population is increasing at an alarming rate of 1.43% (Economic Review”®, 2006). | en_US |
| dc.description.abstract | An experiment was carried out at the experimental field of Department of
Genetics and Plant Breeding, Hajee Mohammad Danesh Science and Technology
University, Dinajpur, during the period from July to December 2008 to study the
phenotypic expression of different traits against the prevalence of major diseases
in fine rice. The experiment was laid out in a Randomized Complete Block
Design with three replications provided 7 genotypes of fine rice. The results of the
investigation revealed that significant variation were found among the genotypes
for the characters tillers per hill and 1000- grain weight (g). On the other hand,
variation was observed both for genotype and environment against effective tillers
per hill, spikelets per panicle and sterility percentage (“%).High co-heritability was
estimated in 1000-grain weight and number of affected tillers by brown spot per
hill with yield. Number of affected tillers by brown spot per hill was highly
environmentally influenced character. On the contrary, percent of affected tillers
by sheath blight per hill was less influenced by environment. Effective tillers/hill,
panicle length, spikelets/panicle and 1000-grain weight showed significant and
positive correlation with yield. Selection would be effective for increasing grain
yield for the characters plant height, effective tillers per hill, spikelets per panicle
and panicle length. Ranzit and Zira were showed high degree of disease resistance
against brown spot, bacterial leaf blight and sheath blight. Varieties seemed to be
easy to improve were Katari, Badshabhog and Sanla. The highest yield was
obtained in Ranzit (4.603 t/ha). | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | MAJOR DISEASES IN FINE RICE | en_US |
| dc.title | PHENOTYPIC EXPRESSION OF DIFFERENT TRAITS AGAINST THE PREVALANCE OF MAJOR DISEASES IN FINE RICE | en_US |
| dc.type | Thesis | en_US |
