Nectarine Fruit Ripening and Quality Assessed Using the Index of Absorbance Difference (𝐼_AD)

Table 1

Fruit maturity stage, 𝐼_AD value and corresponding ethylene production (nl L⁻¹ h⁻¹ g⁻¹ FW) of the two nectarine varieties SF34 and SF26.

Variety	Maturity; stage	𝐼AD; value	Ethylene emission; (nl L^−1 h^−1 g^−1 FW)
SF34	PM^z	0.3–0.6	2.13	a^y
	CM	0.6–1.3	0.26	b
	I	1.3–1.6	0.06	b
SF26	PM	0.3–0.6	2.14	a
	CM	0.6–1.0	0.40	b
	I	1.0–1.3	0.01	b

zFruit maturity stages: physiological maturity (PM), commercial maturity (CM), and immature (I).
^yNumbers with different letters would be statistically significant at 𝑃<0.005; LSD = 0.05.