EFFECT OF TRANSPLANTING GEOMETRY ON SCENTEDFINE RICE VARIETIES IN AMAN SEASON

Abstract

The present investigation ent it led “Effect of transplant ing geometry on scented fine rice varieties in Aman season” was conducted from July, 2017 to November, 2018 at the Research

Farm of Sher-e-Bangla

Agricultural University, Dhaka, Bangladesh. The experiment comprised of

two factors; viz. Factors A: Five scented fine rice varieties (Chinigura, Kalijira, Kataribhog, BRRI dhan37 and BRRI dhan38) and Factor B: Three different spacing (20 cm x 20 cm, 25 cm x 15 cm and 20 cm x 10 cm). The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Different treatment combinations

expressed significant differences due to their interaction effect on plant growth determinants,

yield attributing traits and yield. The tallest plant (161.3 cm), the maximum number of total tillers per hill (13.67), effective tillers per hill (11.33) and the longest pani- cle length (26.20 cm) were recorded from the combined treatment of V 1 S 1 (Chinigura + 20 cm x 20 cm). The highest number of spikelets per panicle (175.0), filled grains per panicle (131.0), the highest grain yield (4.3 t/ha) and straw yield (10.7 t/ha) were recorded from the treatment combination of V 5 S 2 (BRRI dhan38 + 25 cm x 15 cm) while the highest 1000 grain weight (19.07 g) was recorded from (V 5 S 2 ) (Kalijira + 25 cm x 15 cm). However, the highest number of non-filled grains per panicle (59.67) and the highest harvest index (31.76%) were recorded from V 2 S 1 (Kalijira + 20 cm x 20 cm). The shortest plant (130.3 cm) was obtained from V 5 S 3 (BRRI dhan38 + 20 cm x 10 cm) while the lowest number of total tillers per hill (5.67), effective tillers per hill (4.0) and non-filled grains per panicle (17.0) was obtained from V 3 S 1 (Kataribhog + 20 cm x 20 cm). The shortest panicle length (19.33 cm) was obtained from V 1 S 3 (Chinigura + 20 cm x 10 cm) whereas the lowest number of spikelets per panicle (76.00) and filled grains per panicle (53.0) were obtained from

V 1 S 2 (Chinigura + 25 cm x 15 cm). The lowest 1000 grain weight (9.5 g) and straw yield (5.8 t ha -1 ) were found from V 2 S 1 (Kalijira + 20 cm x 20 cm) while the lowest grain yield (2.5 t ha -1 ) and harvest index (22.73%) were resulted from V 5 S 2 (BRRI dhan37 + 25 cm x 15 cm). Therefore, the treatment combination of V 5 S 2 (BRRI dhan38 + 25 cm x 15 cm) produced the best results for grain yield and straw yield.