Morphophysiological study in rice was conducted in split plot design with six nitrogen levels
(0, 30, 60, 90, 120 and 150 kglha) as main plot and five rice genotypes viz ':bdha-11, Radha-
17, Radha-82, BP-13-2 and Makwanpur as subplot. Leaf area index ofRadha-1 1 & Radha-
1 7 gave similar respond to application of more than 90 kg N/ha & gave similar LAI with 30
and 60 kg N/ha. at 30 DAS. Where as at 60 DAS, none of the varieties varied in LAI with
application of more than 60 kg N/ha. At 120 DAS, Radha-82 did not differ in leaf area index
up to application of 90 kg N/ha and rest varieties produce similar LAI with application of
30 to 120 kg N/ha. Varieties like Radha-11, Radha-17, BPI 3-2 and Makwanpur did not
respond to more than 90kg N/ha for TOM at 30 DAS. Where as Radha-82 gave response
up to 120 kg N/ha. At 60 DAS & rest of tested varieties were similar with the application of
150 kg N/ha. At 120 DAS, total dry matter production was increased up to 120 kg N/ha in
all the tested varieties except Radha-1 1 and BPI 3-2. Where as it was respond only use of
90 kg N/ha in Radha-17, 824 Makwanpur-1 at 30 DAS. Radha-17 and BPI 3-2 responded
up to 90-120 kg N/ha at 60 to 120 DAS. Higher CGR was found in Radha-1 1, Radha-17 &
BP-13-2 with increasing' dose of N application level. But Makwanpur-1 had highest CGR
with the application of 150 kg N/ha in 1 120 DAS. The yield ·was ·not found differ use of more
than 90 kg N/ha in all tested genotypes.

Morphophysiological study in rice was conducted in split plot design with six nitrogen levels
(0, 30, 60, 90, 120 and 150 kglha) as main plot and five rice genotypes viz ':bdha-11, Radha-
17, Radha-82, BP-13-2 and Makwanpur as subplot. Leaf area index ofRadha-1 1 & Radha-
1 7 gave similar respond to application of more than 90 kg N/ha & gave similar LAI with 30
and 60 kg N/ha. at 30 DAS. Where as at 60 DAS, none of the varieties varied in LAI with
application of more than 60 kg N/ha. At 120 DAS, Radha-82 did not differ in leaf area index
up to application of 90 kg N/ha and rest varieties produce similar LAI with application of
30 to 120 kg N/ha. Varieties like Radha-11, Radha-17, BPI 3-2 and Makwanpur did not
respond to more than 90kg N/ha for TOM at 30 DAS. Where as Radha-82 gave response
up to 120 kg N/ha. At 60 DAS & rest of tested varieties were similar with the application of
150 kg N/ha. At 120 DAS, total dry matter production was increased up to 120 kg N/ha in
all the tested varieties except Radha-1 1 and BPI 3-2. Where as it was respond only use of
90 kg N/ha in Radha-17, 824 Makwanpur-1 at 30 DAS. Radha-17 and BPI 3-2 responded
up to 90-120 kg N/ha at 60 to 120 DAS. Higher CGR was found in Radha-1 1, Radha-17 &
BP-13-2 with increasing' dose of N application level. But Makwanpur-1 had highest CGR
with the application of 150 kg N/ha in 1 120 DAS. The yield ·was ·not found differ use of more
than 90 kg N/ha in all tested genotypes.