Abstract:
A field experiment with BARI Piaz-1 was conducted in the research farm of Shere-Bangla
Agricultural University, Sher-e-Bangla Nagar, Dhaka, during the winter
season (October to February) to investigate the performance of boron and calcium.
The experiment was carried out with four levels of boron viz. B
(500ppm), B
2
(1000ppm) and B
3
0
(0ppm), B
(2000ppm); and three level of calcium viz. C
(0ppm), C
1
(2500ppm) and C
(5000ppm). This experiment was laid out in RCBD
(Randomized Complete Block Design) with three replications and 12 treatment
combinations. The results showed that the treatments significantly influenced the
plant height and number of leaves at all growth stages except harvesting time. At
harvest boron and calcium significantly increased the umbel plot
1
, fruits umbel
-1
2
, fruit set (%), yield plant
-1
-1
, flowers umbel
, yield per plot, 1000-seed weight, yield
ha
-1
, germination percentage and normal seedling percentage; and reduced the
abnormal seedling percentage. Combined application of boron and calcium also
significantly increased the all above parameters mentioned except abnormal
seedling percentage of onion. The highest result of all parameters showed in
above excluding abnormal seedling percentage from B
3
(2000ppm) and C
(5000ppm) treatment. B
3
and C
treatment reduced production of abnormal
seedling. Among the combined treatment of boron and calcium B
2
(2000ppm
boron and 5000ppm calcium) gave the highest plant height, leaf number and
chlorophyll content. But after reviewing the combined effects of both treatments,
application of 2000 ppm of boron together with 5000 ppm of calcium (B
)
treatment gave the best performance showing the yield and quality of onion seed.
3
C
2
3
C
2
1
0
-
2
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
INSTITUTE OF SEED TECHNOLOGY
SEMESTER: July-December, 2017
