| dc.description | Rice is one of the major food crops of the world. Worldwide rice is cultivated in 150
million hectares, which is more than 10% of the earth‟s arable land (Sarker et al., 2009).
Rice is a major staple food in the tropics (Ogutu et al., 2012). It is interwoven in the
cultural, social and economic lives of millions of Bangladeshis and it holds the key for
food and nutritional security of the country. It is consumed as the chief food and has
been given the highest priority in meeting the demands of its ever-increasing population
in Bangladesh. It is the most important food crop and a primary food source for more
than one-third of world's population (Singh and Singh, 2008). It provides half of total
dietary carbohydrate, especially in Asian countries and it is suitable diet for more than
three billion people, supplying 50- 80% of their daily calorie intake (Khush, 2005). In the
fiscal year of 2012-13, a total of 15.03 million hector of land are used for rice cultivation
in Bangladesh which produced 33.83 million tons of rice (BBS, 2014). | en_US |
| dc.description.abstract | A field experiment was carried out at the Agricultural farm of the Agricultural Chemistry
Department, Hajee Mohammad Danesh Science and Technology University, Dinajpur,
during the period from February to June, 2016 to study the effect of six levels of 6-
Benzylaminopurine (BAP) such as 0, 25, 50, 75, 100, 125, ppm designated as T1, T2,
T3, T4, T5 and T6 respectively on morpho-physiological, chemical properties and yield
characters of BRRI dhan28 cultivar. Results showed that the morpho-chemical
properties, yield and yield attributes were significantly different due to the levels of 6-
BAP. The plant height, root depth, leaf number per plant, flag leaf chlorophyll-b, total
carotenoid and protein content, tiller number per hill, panicle length, grain number per
panicle; grain, straw and biological yield were increased markedly due to the application
of 6-BAP. The highest plant height, root depth, number of tillers hill-1, total chlorophyll
content, panicle number hill-1, grain and biological were obtained from 50 ppm BAP
spraying at vegetative and pre-flowering stage. The highest yield of BRRI dhan28
cultivar was 5.20 (t ha-1) due to the application of 50 ppm BAP while other applied levels
and controlled condition had less pronounced effect on the growth and yield components. | en_US |
