SUCCESSIVE CULTIVATION OF INBRED AND HYBRID RICE USING CLONAL TILLERS IN BORO SEASON
Date
2013-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY
Abstract
A field experiment was conducted at the Agronomy field, Sher-e-Bangla Agricultural
University, Dhaka from November 2012 to July 2013. Experiment consisted of two
factors: Factor A: Variety viz. BRRI dhan29 (V
1
) and BRRI hybrid dhan2 (V
) and
Factor B: Planting material viz. Nursery seedlings (N), First generation clonal tillers
(C
1
) collected from N, Second generation clonal tillers (C
2
) collected from C
, Third
generation clonal tillers (C
3
) collected from C
and Fourth generation clonal tillers
(C
4
) collected from C
3
2
, following split-plot design with three replications. Hybrid
variety BRRI hybrid dhan2 was the early variety (89 days and 123 days, respectively
for flowering and maturity) whereas inbred variety BRRI dhan29 (100 days and 130
days, respectively for flowering and maturity) was the late one. The maximum
number of total grains, filled grains and unfilled grains panicle
-1
(212.82, 161.29 and
51.53, respectively) were obtained from BRRI dhan29 while the minimum from
BRRI hybrid dhan2 (147.83, 139.31 and 8.52, respectively) but yield was not varied
significantly. The maximum weight of 1000-grain (26.50 g) was obtained from hybrid
variety and the minimum from the inbred one (19.70 g). The nursery seedlings gave
highest grain yield (9.23 t ha
-1
) that followed by first generation clonal tillers (7.44 t
1
2 A field experiment was conducted at the Agronomy field, Sher-e-Bangla Agricultural
University, Dhaka from November 2012 to July 2013. Experiment consisted of two
factors: Factor A: Variety viz. BRRI dhan29 (V
1
) and BRRI hybrid dhan2 (V
) and
Factor B: Planting material viz. Nursery seedlings (N), First generation clonal tillers
(C
1
) collected from N, Second generation clonal tillers (C
2
) collected from C
, Third
generation clonal tillers (C
3
) collected from C
and Fourth generation clonal tillers
(C
4
) collected from C
3
2
, following split-plot design with three replications. Hybrid
variety BRRI hybrid dhan2 was the early variety (89 days and 123 days, respectively
for flowering and maturity) whereas inbred variety BRRI dhan29 (100 days and 130
days, respectively for flowering and maturity) was the late one. The maximum
number of total grains, filled grains and unfilled grains panicle
-1
(212.82, 161.29 and
51.53, respectively) were obtained from BRRI dhan29 while the minimum from
BRRI hybrid dhan2 (147.83, 139.31 and 8.52, respectively) but yield was not varied
significantly. The maximum weight of 1000-grain (26.50 g) was obtained from hybrid
variety and the minimum from the inbred one (19.70 g). The nursery seedlings gave
highest grain yield (9.23 t ha
-1
) that followed by first generation clonal tillers (7.44 t
1
2ha
-1
) and second generation clonal tillers (6.57 t ha
-1
). The next two successive
generation of clonal tillers also produced around 3 t ha
-1
grain yield. The maximum
grain yield (9.6 t ha
-1
) was observed in nursery seedlings of BRRI hybrid dhan2 that
similar to the same planting material of BRRI dhan29 (8.86 t ha
-1
). The first and
second generation clonal tillers of both the varieties produced more than 6 t ha
grain
yield.
-1
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
AGRONOMY
SEMESTER: JULY-DECEMBER, 2013
Keywords
SUCCESSIVE CULTIVATION, INBRED AND HYBRID RICE, CLONAL TILLERS, BORO SEASON