INFLUENCE OF PLANTING MATERIAL AND VARIETY ON YIELD OF BORO RICE
Date
2010-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
A field experiment was carried out at Agronomy Field, Sher-e-Bangla Agricultural
University, Dhaka during the period from December, 2008 to May, 2009 to study the
growth and yield of inbred and hybrid rice in boro season using mother plant and clonal
tillers. The experiment consisted of two level of treatments viz. planting material and
variety. The experiment was laid out in split-plot design with three replications.
Experimental results showed that planting material significantly influenced all the studied
characters such as panicle length, unfilled grains panicle
-1
, total grains panicle
, 1000
grains weight, grain straw ratio and harvest index. The results revealed that mother plant
showed the better performance compared to clonal tillers. The higher grain yield (6.85 t
ha
-1
) and straw yield (6.45 t ha
-1
) was obtained from the mother plant and the lowest grain
yield (4.47 t ha
-1
) and straw yield (4.59 t ha
-1
) was obtained from clonal tillers. Maximum
biological yield (13.31t ha
-1
) was calculated from the mother plant and minimum
biological yield (9.06 t ha
-1
) was found from the clonal tillers. Variety had significant
effect on all the agronomic parameters except number of effective tillers, ineffective
tillers, total tillers, grain straw ratio and biological yield. BRRI hybrid dhan 2 produced
the highest dry grain yield (5.92 t ha
-1
); the lowest straw yield (4.97 t ha
), whereas,
BRRI dhan29 produced the lowest grain yield (4.16 t ha
-1
); and highest dry straw yield
(6.70 t ha
-1
). The maximum harvest index (56.50 %) was found from BRAC aloron and
the lower harvest index (37.67%) was found from BRRI dhan29. The harvest index was
33.32% higher in BRAC aloron compared to BRRI dhan29. The interaction effect of
planting material and variety showed significant variation for tillers m
-2
, panicle length,
unfilled grains panicle
-1
, total grains panicle
-1
, 1000 grains weight, grain straw ratio and
harvest index. Clonal tillers had the potentiality to produce similar effective tillers m
,
grain wt. and harvest index as mother plant though the highest grain yield
(7.80 t ha
-1
) was given by mother plant of hybrid variety Sonarbangla-6 that similar to the
mother plant of BRRI hybrid dhan2 (7.67 t ha
-1
) and mother plant of BRAC aloron
(7.28 t ha
-1
).
-1
-1
-2
Description
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGRONOMY
Semester: January-June, 2010
Keywords
BORO RICE