Journal of Food Quality

Research Article

Effects of 1-Methylcyclopropene and Controlled Atmosphere on Ethylene Synthesis and Quality Attributes of Avocado cvs. Edranol and Fuerte

Table 3

Ethylene production and respiration rates immediately after 30 and 50 days storage at 5°C in “Edranol” avocado.


Harvest	Storage time (days)	Treatment	Ethylene production (μLC₂H₄kg⁻¹h⁻¹)	Respiration rates (mLCO₂kg⁻¹h⁻¹)
Harvest	Storage time (days)	Treatment	Mean ± s.d	Mean ± s.d

I	0	Control	0.00 ± 0.0	41.0 ± 5.30
	30 d	RA	8.82 ± 7.60^b	34.5 ± 7.70^c
		CA	0.00 ± 0.00^a	28.3 ± 2.60^b
		RA + 1-MCP	0.18 ± 0.36^a	19.1 ± 5.40^a
	50 d	RA	50.3 ± 22.0^b	70.9 ± 6.90^c
		CA	0.21 ± 0.33^a	37.5 ± 7.70^b
		RA + 1-MCP	0.53 ± 0.51^a	25.4 ± 4.70^a
II	0	Control	0.610 ± 1.050	24.6 ± 3.30
	30 d	RA	11.4 ± 5.02^b	55.8 ± 15.0^c
		CA	0.000 ± 0.000^a	41.3 ± 2.60^b
		RA + 1-MCP	0.230 ± 0.240^a	31.4 ± 4.20^a
	50 d	RA	29.5 ± 11.40^b	71.1 ± 14.0^c
		CA	0.000 ± 0.000^a	49.7 ± 7.30^b
		RA + 1-MCP	1.510 ± 0.850^a	36.8 ± 2.60^a
Interaction
Treatment (A)			<0.0001	<0.0001
Storage time (B)			<0.0001	<0.0001
Harvest (C)			0.0501	<0.0001
A × B			<0.0001	0.8698
A × C			0.0133	0.8698
B × C			0.0116	0.0118
A × B × C			0.0011	0.0075

RA: regular air (85% Relative humidity); CA: controlled atmosphere (4% O₂ + × 6% CO₂); 1-MCP: 1-methylcyclopropene (300 ppb); s.d: standard deviation. I: early maturity stage; II: advanced maturity stage. d: days at 5°C. Each value is the mean of ten fruits that were individually measured. Different letters within each storage time and harvest represents significant differences at as determined by the LSD test. Factor: treatment: RA, CA RA + 1-MCP. Storage time: fruits storage for 30 and 50 days at 5°C. Harvest: two harvest, early and advanced maturity stage. Factor significant, .