| dc.description.abstract | A field experiment was conducted at the field laboratory of Agricultural
Chemistry Department, Hajee Mohammad Danesh Science and Technology
University, Dinajpur, during the period from February to May, 2011 to study
morphochemical, yield and yield contributing characters of five boro rice
varieties of which four were local viz., Taipe, Pariza, Lafaya and Jirashail and
one was a released varity BRRI dhan-50. The experiment was laid out in a
Randomized Complete Block Design with four replications. Result revealed that
the morphological, phygiological, yield and yield attributes were significantly
different among the cultivars studied. Result showed that high yielding released
vareties were shorter in plant height, having more tillering capacity, higher leaf
number which in turn showed superior growth character and yield than the local
cultivars. Similarly released and HYV produced higher number of grains
panicle’ and bolder grains which resulted higher grain yield than the local
cultivars. The variety BRRI dhan-50 showed superiority in respect of
morphological parameters like tiller numbers, leaf number, erect leaves and
total dry mass. Nutrient content among all the cultivars showed significant
difference. The highest Ca content was recorded in Pariza. Pariza also contained
the highest Mg content than the others. The highest K and B content was
recorded in Lafaya. The highest S and P content was recorded in Taipe. The
highest Zn content was in BRRI dhan-50. Further, BRRI dhan-50 also showed
superiority in yield contributing characters over other local varieties and it
resulted in higher grain yield (5.7 t ha’), while Jirashail showed the lowest yield
contributing characters and yield (4.6 t ha’). Among the local rice cultivars,
Lafaya had the best yielding ability than those of others local cultivars. | en_US |
