Table 5 Correlation analyses between 2AP content in brown rice and the investigated parameters

 grain

0.2147 ns

0.2812^a

0.5429^b

0.7498^b

 leaf

0.3890^b

0.6964^b

0.1884 ns

0.1342 ns

0.2631 ns

 Stem-sheath

− 0.6084^b

− 0.3214^a

− 0.6450^b

0.6214^b

0.2021 ns

 Grain

0.3932^b

0.1677 ns

−0.223 ns

− 0.2222 ns

 Leaf

0.1045

0.5046^b

−0.0224

−0.6608^b

− 0.4014^b

 Stem-sheath

0.4646^b

0.5116^b

0.6379^b

0.4770^b

−0.1290 ns

 Root

0.5538^b

0.2828^a

0.1685 ns

0.2453 ns

0.0726 ns

 Grain

−0.0523 ns

0.2554 ns

0.2870^a

0.3595^b

 Leaf

0.2937 ns

0.4995^b

0.4389^b

0.1976 ns

0.0345 ns

 Stem-sheath

0.3997^b

0.4860^b

0.4826^b

0.4271^b

0.4858^b

 Root

0.4400^b

0.5269^b

0.3002^a

0.4625^b

0.4085^b

 Grain

0.1834 ns

0.0236 ns

0.1666 ns

−0.2187 ns

 Leaf

−0.0700 ns

0.3822^b

0.0587 ns

0.2778^a

−0.1782 ns

 Stem-sheath

0.5317^b

0.3289^a

−0.1446 ns

0.4552^b

0.0974 ns

 Root

0.5641^b

0.1983 ns

0.0040 ns

0.2589 ns

0.2439 ns

 Grain

0.1147 ns

0.3975^b

0.5407^b

0.3103^a

 Leaf

0.2743 ns

0.3494^b

0.0739 ns

−0.0577 ns

−0.2724^a

 Stem-sheath

0.3929^b

0.7658^b

0.2302 ns

0.5854^b

0.1644 ns

 Root

0.2960^a

0.5961^b

0.4466^b

0.5879^b

0.1445 ns

 Grain

−0.0112 ns

−0.1510 ns

−0.5052^b

− 0.3963^b

 Leaf

−0.0805 ns

− 0.3096^a

0.1360 ns

0.0167 ns

−0.2337 ns

 Stem-sheath

0.0397 ns

−0.3492^b

0.1060 ns

−0.0642 ns

−0.6041^b

 Root

0.2525 ns

−0.4732^b

−0.0649 ns

− 0.2147 ns

−0.1632 ns

 Grain

−0.6194^b

−0.3658^b

− 0.4099^b

−0.1367 ns

 Leaf

−0.0063 ns

0.0322 ns

−0.0834 ns

0.0025 ns

0.2044 ns

 Stem-sheath

0.4662^b

0.1237 ns

−0.3382^a

−0.2943^a

0.3043^a

 Root

0.2406 ns

−0.0471 ns

−0.4170^b

− 0.2384 ns

−0.0278 ns