Abstract:
An experiment was conducted during the period from March to August 2019 at Shere-Bangla
Agricultural University, Dhaka, Bangladesh to study the influence of leaf
clipping on the growth and yield of aus rice. The experiment comprised two factors;
Factors A: three different seedling clipping viz. S
0
= no seedling clipping (control), S
1
= 1/3
rd
height seedling clipping and S
2
= 1/2
nd
height seedling clipping and Factor B:
five different leaf clipping before panicle initiation viz. L
0
= no leaf clipping (control),
L
1
= Lower 1st + 2nd leaves clipping, L
2
= Lower 2nd + 3rd leaves clipping, L
3
= Lower
3rd + 4th leaves clipping and L
4
= Flag leaf clipping. The experiment was laid out in
Randomized Complete Block design (RCBD) with three replications.Seedling clipping
showed significant variations on all parameter except plant height. Leaf clipping
treatment also showed same effect on different plant characters. Combine effect of
seedling clipping and leaf clipping treatment varied growth and yield parameters
significantly as well. The tallest plant (110.17 cm) was recorded from the combination
of no seedling clipping and no leaf clipping. The highest number of effective tillers hill
1
(27.69) and longest panicle (35.81 cm) was obtained from the combination of 1/3
height clipping with no leaf clipping of seedlings. The maximum number of filled
grains panicle
−1
(157.50), 1000-grain weight (28.00 g), grain yield (4.98 t ha
) and
harvest index (48.54 %) was recorded from 1/3
rd
seedling clipping and no leaf clipping
combination of treatment.
Description:
A Thesis
Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMY
