Improvement of drought tolerance in rice using line X tester mating design and biochemical molecular markers

El-Mouhamady, Almoataz Bellah Ali; Gad, Abdul Aziz M.; Karim, Ghada S. A. Abdel

doi:10.1186/s42269-021-00656-1

Bulletin of the National Research Centre

Table 3 Mean performance of all rice accessions for all studied traits for the two experiments of normal and drought stress conditions

From: Improvement of drought tolerance in rice using line X tester mating design and biochemical molecular markers

Entries	Heading date (days)		Plant height (cm)		Number of filled grains/panicle		1000-grain weight (g)		Grain yield/ plant (g)
Entries	N	S	N	S	N	S	N	S	N	S
L1	115.34	118.07	105.22	93.74	128.48	117.63	20.04	13.72	27.13	18.66
L2	111.42	120.44	110.18	101.60	133.06	120.11	22.16	16.49	30.06	22.11
L3	108.73	114.28	107.78	98.12	141.17	128.08	19.63	11.14	34.15	26.82
L4	113.49	119.38	109.81	100.23	130.09	122.05	23.85	17.34	25.40	19.78
L5	106.82	113.52	113.25	104.08	129.42	113.82	18.94	12.15	31.17	24.33
T1	98.06	92.14	98.53	82.70	162.14	150.0	27.01	25.14	38.02	29.79
T2	102.08	96.24	96.78	85.33	153.27	144.18	25.03	23.74	46.92	33.57
T3	105.17	101.36	102.68	77.13	149.49	142.18	28.08	24.77	40.18	37.72
L1 x T1	93.04	86.14	97.0	75.28	210.81	187.13	33.18	29.05	68.12	57.03
L1 x T2	119.33	122.80	119.37	115.89	169.40	153.92	30.11	28.56	26.04	15.41
L1 x T3	123.05	127.11	121.24	113.73	203.72	159.01	25.26	19.45	43.28	39.11
L2 x T1	115.62	118.29	124.56	119.32	131.18	118.37	20.03	12.05	36.01	20.07
L2 x T2	118.38	125.02	118.84	112.72	124.59	115.20	21.07	14.95	41.27	30.06
L2 x T3	91.26	88.0	95.35	69.36	258.92	233.15	35.92	32.18	69.45	51.77
L3 x T1	120.09	123.94	114.33	105.04	147.03	134.07	28.03	26.51	39.76	33.84
L3 x T2	114.86	119.57	121.28	112.68	129.0	110.03	22.07	14.33	28.44	20.36
L3 x T3	100.07	92.14	94.22	63.71	307.19	273.03	37.88	34.19	57.18	48.03
L4 x T1	120.13	125.75	128.50	116.46	192.13	174.22	20.18	10.58	24.05	13.26
L4 x T2	106.04	102.84	108.11	97.60	118.32	110.84	30.01	28.49	23.08	17.45
L4 x T3	92.06	84.55	89.14	61.83	268.0	241.05	39.13	36.73	60.38	52.06
L5 x T1	88.35	79.45	91.06	74.0	281.04	263.17	36.02	33.79	77.14	63.27
L5 x T2	114.06	110.21	113.79	96.35	127.63	106.14	23.80	21.05	53.46	44.12
L5 x T3	110.26	117.15	117.02	110.77	121.05	112.02	27.34	19.78	27.83	17.87
LSD 0.05	3.38	3.19	2.31	1.73	3.18	3.72	3.03	1.96	1.78	1.63
0.01	4.86	4.59	3.32	2.49	4.58	5.35	4.37	2.83	2.56	2.35

Entries	Maximum root length (cm)		Number of roots/plant		Root volume		Root xylem vessel number		Osmotic adjustment
Entries	N	S	N	S	N	S	N	S	Osmotic adjustment
L1	25.14	17.33	116.42	100.04	29.18	22.55	6.92	4.11	1.54
L2	20.09	14.22	121.15	98.33	34.0	19.74	8.04	7.34	1.12
L3	24.06	19.34	110.78	103.25	25.13	17.33	5.33	3.17	1.36
L4	18.78	12.11	128.12	116.88	36.33	24.82	4.09	2.12	1.49
L5	23.77	15.79	105.03	88.39	27.62	20.03	7.45	5.64	1.58
T1	32.17	29.80	144.47	140.17	49.76	47.88	12.98	11.03	0.84
T2	36.05	32.55	159.0	152.09	54.06	51.37	14.78	13.12	0.77
T3	40.13	34.28	167.49	139.41	61.04	57.94	10.06	9.01	0.92
L1 x T1	62.86	59.04	325.33	292.84	122.14	115.07	20.94	18.86	0.55
L1 x T2	30.11	22.08	200.04	176.22	109.66	85.34	16.14	14.90	1.71
L1 x T3	50.07	44.13	149.07	128.25	78.43	72.0	14.05	13.88	1.94
L2 x T1	27.55	20.03	130.28	112.58	66.05	64.74	18.03	16.77	2.14
L2 x T2	38.04	28.55	290.24	273.08	73.02	69.55	15.01	14.32	2.25
L2 x T3	71.12	66.08	436.79	380.05	128.44	125.39	23.67	21.44	0.39
L3 x T1	18.73	13.08	183.16	146.04	83.66	79.34	17.12	15.79	1.89
L3 x T2	21.35	11.15	102.69	71.09	77.80	74.22	20.11	17.31	2.34
L3 x T3	83.19	72.06	422.19	303.74	113.05	100.77	21.97	20.44	0.42
L4 x T1	26.71	23.53	119.52	102.48	69.32	62.18	10.33	7.34	2.07
L4 x T2	40.19	26.23	184.96	163.15	101.23	97.22	11.15	9.03	1.83
L4 x T3	55.13	52.60	368.55	347.11	131.06	129.14	27.13	24.57	0.29
L5 x T1	69.80	64.32	501.39	477.92	116.02	112.44	25.03	23.12	0.61
L5 x T2	33.04	22.76	153.17	137.01	65.03	61.14	16.83	13.91	1.85
L5 x T3	20.44	12.88	100.02	64.79	91.08	80.13	10.93	7.43	2.01
LSD 0.05	3.67	3.11	1.42	1.46	1.54	1.59	2.29	2.42	0.23
0.01	5.29	4.47	2.05	2.01	2.22	2.29	3.30	3.48	0.34

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