| dc.contributor.advisor | Prof.Bhabendra Kumar Biswas | |
| dc.contributor.author | NAHID, MST. FARHANA | |
| dc.date.accessioned | 2022-04-23T08:27:20Z | |
| dc.date.available | 2022-04-23T08:27:20Z | |
| dc.date.issued | 2013-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/659 | |
| dc.description | Bangladesh agriculture is predominantly rice based. In Bangladesh, cultivated in 10.579 in
million hectares having the average yield of 2.58 metric tons/ ha with the total production of
27.318 million tons in the year 2006-2007, which is very poor as compared to other advanced
rice growing countries like South Korea, Spain, Australia, China and Japan where the average
production is more than S t ha-1 (FAO, 1993). Rice occupies about 77% of total cropped areas
and it alone constitutes about 92% of the total food grains produced annually in the country
(Anonymous, 2000). Bangladesh is one of the most densely populated countries in the world
with 155 million people living in a land area of 147,570 sq. km. Rice alone constitutes 92% of
the total food grains produced annually in Bangladesh. It is the staple food of about 135
million people of Bangladesh. It provides nearly 48% of rural employment, about two-third of
total calorie supply and about one-half of the total protein intakes of an average person in the
country. Rice sector contributes one-half of the agricultural GDP and one-sixth of the national
income in Bangladesh. Almost all of the 13 million farm families of the country grow rice.
Rice is grown on about 10.5 million hectares which has remained almost stable over the past
three decades. About 75% of the total cropped area and over 80% of the total irrigated area is
planted to rice. | en_US |
| dc.description.abstract | The experiment was conducted at the experiment field in Genetics and Plant Breeding
Department of Hajee Mohammad Danesh Science and Technology University, Dinajpur
during the period from December to June 2012. Variability, heritability, genetic advance,
simple correlation and path analysis were studied for grain yield and other yield
contributing charecters (i.e. plant height, No. of tiller per hill, effective tiller per hill,
panicle length, grain per panicle, 10% heading days ,80% heading days, sterility %,
1000- grain weight and yield per plant) in 10 fine rice genotypes. There were significant
differences observed among all the traits studied. A remarkable variation in plant
characters and yield performance was noticed among the fine rice. Kalozira (4.153 t/ha)
and Sadakatari (4.147 t/ha) gave the highest grain yield. While Chinigura (2.410 t/ha)
and Begunbichi (2.227 t/ha) produced the minimum yield. Phenotypic variance against
yield/ha (0.457) was higher than the corresponding genotypic variance (0.424). This
indicated the existence of much influence of environment on the expression of the
character. This character showed high genotypic (15.05) as well as phenotypic (15.63)
co-efficient of variation associate with moderate heritability (61.78). On the other hand,
1000-grain weight, sterility percentage, plant height, spikeletes/panicle were highly
heritable. Lodging percentage was highly influenced by environment. Selection would be
effective for the characters panicle length, spikelets/panicle, effective tillers/hill and
1000-grain weight to increase the grain yield/ha as reflected by strong and positive
correlation. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | PRIMARY AND SECONDARY CHARACTERS | en_US |
| dc.subject | Genetic parameters in fine rice | en_US |
| dc.subject | Correlation and Path analysis | en_US |
| dc.title | ROLE OF PRIMARY AND SECONDARY CHARACTERS TO IMPROVE YIELD POTENTIAL IN FINE RICE | en_US |
| dc.type | Thesis | en_US |
