| dc.contributor.advisor | Prof. Bhabendra Kumar Biswas | |
| dc.contributor.author | HOSSAIN, MD. MOSHARRAF | |
| dc.date.accessioned | 2022-04-21T06:53:01Z | |
| dc.date.available | 2022-04-21T06:53:01Z | |
| dc.date.issued | 2012-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/401 | |
| 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
system. About 40% of the world's population consumes 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 e/ a/., 2006) while the population is increasing at an alarming rate
of 1.43% (Economic Review, 2006). | en_US |
| dc.description.abstract | The experiment was conducted at the experiment field during the period from December2011 to June 2012 to evaluate the performance of breeder seeds for the production of
foundation seeds in rice at different locations in the district of Dinajpur. Variability,
heritability, co-heritability, genetic advance, simple correlation coefficient and path
coefficient analysis were studied for grain yield and other yield contributing characters (i.e.
plant height, number of tiller per hill, effective tiller per hill, panicle length, grain per panicle,
50% flowering days, 1000 grain weight, sterility, and yield per plant) in four varieties of rice
(Oryza sativa L.). There were significant differences observed among all the traits studied.
The highest genotypic coefficient of variation was observed for sterility (28.58) and the
lowest value was observed in grain per panicle (6.94). 50% flowering days (99.43) showed
high heritability and grain per panicle (73.65) showed low heritability. Genetic advance in
percentage of mean was high for sterility (60.43) and low for grain per panicle (16.30). A
remarkable variation in plant characters and yield performance was noticed among the rice
varieties. The genotype of BRRI-29 gave the highest grain yield (5.47 t/ha) while BRRI-50
produce the minimum (4.25 t/ha). Grain per panicle showed genotypically and phenotypically
positive and significant correlation with the yield per plant. The trait 1000 grain weight
showed positive and significant correlation with the yield per plant. The results of path
coefficient analysis revealed that grain per panicle had the high direct effect on yield per
plant and it had significant relation on grain yield. In contrast panicle length genotypically
and phenotypically had significant relation on yield but it had negative direct effect. Based on
overall performances, the genotypes BRRI-29 and seemed to better than other varieties and
particularly some were outstanding against grain yield per plant. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | Variability and genetic parameters | en_US |
| dc.subject | Combination of different genetic parameters | en_US |
| dc.subject | Heritability and genetic advance Combination of different genetic par | en_US |
| dc.title | PERFORMANCE OF BREEDER SEEDS FOR THE PRODUCTION OF FOUNDATION SEEDS IN RICE AT DIFFERENT LOCATIONS OF DINAJPUR | en_US |
| dc.type | Thesis | en_US |
