Abstract:
An experiment was conducted at the Agronomy held of Sher-e-Bangla
Agneultural University, Dhaka-1 207. during the period from November, 2006
to March. 2007 with a view to examining the effect of variety and levels of
nitrogen on the growth and yield of rapeseed. There were 4 Nitrogen tërtilizer
treatments in the experiment such as
= Control, N1
= 60 kg N lii'. N
2 = 120
kg N hi1 and Nl
= ISO kg N hz(' and three variety viz. SAU Sharisha-1. BARI
Sharisha- II and BARE Sharisha-13 were used in the experiment as the test
crop. The experiment was laid out in Randomized Complete Block Design
(RCBD) (factorial) with three replications. Variety and nitrogen has significant
effect on growth. development, yield and yield aitrihuters of rapeseed. Plant
height. dry matter, branches plant* length of main iniloreseenee, number of
siliquac in the main inilorescence, siliquae plant". siliqua length, seeds siliqua'
weight of 1000 seed, seed yield. stover yield and harvest index were
significantly influenced by both variety and nitrogen. The results revealed that
nitrogen at the rate of 120 kg ha
4
showed the best result in respect of number
of branches plain" number of siliqua plant" and number of seeds siliqua
- '.
Nitrogen at 120 kg hi' gave the highest seed yield (1974.62 kg ha"). i'hree
varieties influenced the growth parameters like plant height, dry matter weight.
and the yield components like branches per plant, length of main intlorescence.
number of siliquae in the main infloreseenee, siliquae
siliqua length,
seeds siliqua", 1000 seed weight. seed yield. stover yield and harvest index.
Itowever. the seed yield of rapeseed significantly ditlëred among the varieties.
BAR! Sarisha-13 produced the highest yield of 1797.25 kg ha" and the lowest
seed yield (1603.13 kg ha") was obtained from the variety SAU Sarisha-l. The
interaction effect of variety and nitrogen revealed that three varieties in
combination with 120 kg N ha
4
showed the best performance in most of the
eases.
