Gene action of yield and yield contributing traits of submergence tolerant rice (Oryza sativa L.) in Bangladesh

Bulletin of the National Research Centre

Table 1 Mean performance and standard error of yield-contributing traits in six populations of submergence rice

Traits	P₁	P₂	F₁	F₂	BC₁	BC₂
DTH	87.67 ± 0.15	78.83 ± 0.20	76.17 ± 0.08	75.83 ± 0.08	75.50 ± 0.13	78.50 ± 0.13
DTM	113.80 ± 0.05	106.77 ± 0.07	113.67 ± 0.15	95.33 ± 0.15	88.43 ± 0.13	88.83 ± 0.20
PH	127.10 ± 0.48	122.77 ± 0.23	139.74 ± 0.13	151.00 ± 0.09	142.13 ± 0.11	135.63 ± 0.25
INL	26.07 ± 0.11	25.93 ± 0.04	26.87 ± 0.11	25.73 ± 0.09	21.60 ± 0.29	24.83 ± 0.15
TH	6.27 ± 0.29	6.67 ± 0.17	9.87 ± 0.18	10.58 ± 0.07	7.53 ± 0.08	7.67 ± 0.08
PL	29.53 ± 0.10	26.61 ± 0.05	27.73 ± 0.07	28.58 ± 0.14	28.40 ± 0.11	28.37 ± 0.07
PBP	11.40 ± 0.05	10.00 ± 0.05	10.07 ± 0.03	11.93 ± 0.08	17.07 ± 0.08	10.03 ± 0.06
SBP	26.83 ± 0.16	22.13 ± 0.08	23.13 ± 0.08	25.50 ± 0.08	37.47 ± 0.08	29.07 ± 0.13
FGP	190.70 ± 0.14	132.90 ± 0.21	142.67 ± 0.18	147.37 ± 0.17	142.63 ± 0.09	123.27 ± 0.08
UFGP	82.00 ± 0.15	32.03 ± 0.17	30.13 ± 0.12	33.90 ± 0.16	21.40 ± 0.05	47.17 ± 0.09
GP	107.80 ± 0.15	101.63 ± 0.13	114.50 ± 0.13	83.70 ± 0.08	121.18 ± 0.09	75.97 ± 0.16
YH	7.17 ± 0.15	5.98 ± 0.18	10.30 ± 0.08	22.40 ± 0.18	41.20 ± 0.11	73.47 ± 0.25
YT	1.17 ± 0.03	1.02 ± 0.04	1.06 ± 0.06	2.06 ± 0.04	5.47 ± 0.05	9.59 ± 0.19
TGW	19.13 ± 0.08	29.80 ± 0.05	34.17 ± 0.04	20.60 ± 0.17	20.67 ± 0.09	30.23 ± 0.19

DTH days to heading, DTM days to maturity, FGP no. of filled grain per panicle, GP no. of grain per panicle, INL internode length, P parents, BC backcross, PBP no. of primary branch per panicle, PH plant height, PL panicle length(cm), SBP no. of secondary branches per panicle, TGW thousand grain weight, TH no. of tiller per hill, UFGP no. of unfilled grain per panicle, YH yield per hill, YT yield per tiller