Non-destructive phenotyping for early seedling vigor in direct-seeded rice

Anandan, Annamalai; Mahender, Anumalla; Sah, Rameswar Prasad; Bose, Lotan Kumar; Subudhi, Hatanath; Meher, Jitendra; Reddy, Janga Nagi; Ali, Jauhar

doi:10.1186/s13007-020-00666-6

Plant Methods

Table 2 Growth parameters observed by manual sampling and ANOVA for seven rice genotypes at 28 days after sowing

From: Non-destructive phenotyping for early seedling vigor in direct-seeded rice

Traits	LB-46	GM-217	AC38399	ARC10656	Vandana	Sabita	Varshadhan	ANOVA
Shoot length (cm)	41.48 ± 2.76	49.52 ± 2.4	42.92 ± 1.76	43.68 ± 0.37	43.88 ± 2.05	39.76 ± 0.81	39.00 ± 1.77	*
Root length (cm)	25.32 ± 1.46	25.40 ± 1.48	28.22 ± 1.18	26.72 ± 1.42	25.78 ± 2.21	32.28 ± 1.67	23.44 ± 1.63	*
Shoot dry weight (g)	0.396 ± 0.033	0.303 ± 0.10	0.188 ± 0.036	0.136 ± 0.011	0.180 ± 0.026	0.159 ± 0.009	0.269 ± 0.039	**
Root dry weight (g)	0.27 ± 0.025	0.169 ± 0.05	0.142 ± 0.03	0.073 ± 0.011	0.149 ± 0.015	0.088 ± 0.007	0.112 ± 0.013	**
Tiller number	3.40 ± 0.24	1.80 ± 0.58	1.20 ± 0.20	1.00 ± 0.001	1.00 ± 0.001	1.20 ± 0.20	2.20 ± 0.37	**
Stem weight (g)	0.38 ± 0.17	0.15 ± 0.04	0.07 ± 0.01	0.07 ± 0.003	0.09 ± 0.02	0.07 ± 0.01	0.11 ± 0.01	*
Stem thickness (mm)	3.48 ± 0.31	3.46 ± 0.20	3.05 ± 0.20	2.81 ± 0.12	3.13 ± 0.17	3.12 ± 0.18	2.70 ± 0.19	NS
Leaf number/plant	11.2 ± 1.16	7.40 ± 1.40	6.40 ± 0.68	6.40 ± 0.24	6.20 ± 0.20	6.20 ± 0.20	8.80 ± 1.24	**
First leaf weight (g)	0.002 ± 0.0001	0.003 ± 0.0004	0.003 ± 0.0002	0.003 ± 0.0004	0.003 ± 0.0002	0.005 ± 0.0006	0.003 ± 0.0002	NS
Second leaf weight (g)	0.008 ± 0.0009	0.006 ± 0.0008	0.004 ± 0.0006	0.006 ± 0.0009	0.006 ± 0.0008	0.010 ± 0.0002	0.007 ± 0.0009	NS
Third leaf weight (g)	0.010 ± 0.001	0.011 ± 0.002	0.005 ± 0.001	0.011 ± 0.001	0.012 ± 0.002	0.011 ± 0.001	0.014 ± 0.002	NS
Fourth leaf weight (g)	0.013 ± 0.002	0.017 ± 0.002	0.016 ± 0.002	0.018 ± 0.001	0.024 ± 0.002	0.017 ± 0.001	0.023 ± 0.002	NS
Fifth leaf weight (g)	0.024 ± 0.001	0.032 ± 0.002	0.023 ± 0.002	0.022 ± 0.001	0.032 ± 0.002	0.029 ± 0.002	0.027 ± 0.001	NS
Sixth leaf weight (g)	0.036 ± 0.002	0.036 ± 0.002	0.037 ± 0.002	0.027 ± 0.001	0.038 ± 0.002	0.027 ± 0.001	0.033 ± 0.002	NS
Seventh leaf weight (g)	0.009 ± 0.0008	0.009 ± 0.0007	0.005 ± 0.0002	0.006 ± 0.0002	0.005 ± 0.0003	0.005 ± 0.0005	0.003 ± 0.0006	NS

Mean ± standard error and significance of ANOVA are presented for each variety
NS non-significant
* p < 0.05; ** p < 0.001

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