Finding the superior allele of japonica-type for increasing stem lodging resistance in indica rice varieties using chromosome segment substitution lines

Rice

Table 1 Breaking and bending type lodging resistance of Koshikari and Takanari in 2015 and 2016

Variety	Breaking type lodging resistance			Bending type lodging resistance
Variety	Bending moment at breaking gf·cm	Section modulus mm³	Bending Stress gf·mm⁻²	Flexural rigidity gf·mm²	Secondary moment of inertia mm⁴	Young’s modulus gf·mm⁻²
2015
Takanari	1607	19.2	839.5	996.2	61.0	16.3
Koshihikari	1151	7.9	1462.3	226.4	18.2	12.4
	**	***	**	***	***	**
2016
Takanari	1498	16.9	888.3	653.3	53.6	12.2
Koshihikari	953	6.8	1419.7	137.5	14.4	9.2
	**	***	**	**	***	ns

Note: ns, ** and *** indicated non-significant difference, significant at the level, 1 and 0.1% respectively