Genomics and Applied Biology 2016, Vol.7, No.1, 1-9
7
Figure 3 Mean grain yield differences between early and delayed transplanted rice of different genotypes from 2011 to 2014
4 Discussion
Interpretation of four year's data from 2011 to 2014 show that day to heading and maturity in delayed
transplanting was longer than early transplanting. On an average, 18.82% and 14.43% more days were taken by
delayed transplanted crop to head and mature than early transplanted crop from 2011 to 2014 respectively. More
days for maturity (26.66%) were taken in 2011 and less days (5.29%) in 2013. Mean difference in days to
flowering were 27, 14, 8 and 22; and mean days to maturity were 32, 14, 7 and 23 in 2011 to 2014 respectively
(Figure 1). This result is similar to the findings of Nahar et al (2009) and Shah (2001) who reported delayed
transplanting cause delay heading and maturity which might be due to low solar radiation during crop vegetative
stage.
On an average, 16.78% decrease in plant height was obtained from early to delayed transplanting from 2011 to
2014. Highest reduction in plant height (26.27%) were achieved in 2014 and lowest (8.96%) in 2011. The mean
difference in plant height were 13.4 cm, 23 cm, 18.8 cm and 36 cm from 2011 to 2014 respectively (Figure 4).
The decrease of plant height in all years of delayed transplanting might be due to improper development of roots
and short photoperiod duration. This result is similar to the findings of Vandana et al. (1994) who reported that dry
matter accumulation in leaves decreased with test cultivar with later transplanting dates.
Figure 4 Mean differences in plant height and panicle length of early and delayed transplanted rice from 2011 to 2014
This result is similar to the findings of Vandana et al. (1994) who reported that dry matter accumulation in leaves
