Plant Productions

Effects of Harvest Time and Storage Duration on Some Physical and Biochemical Indices in Pomegranate (Punica granatum L.) Fruits

F. Paimard; M. Heidari

Volume 41, Issue 1 , June 2018, , Pages 57-68

https://doi.org/10.22055/ppd.2018.13550

Abstract

Abstract Background and Objectives Preharvest and harvest conditions can affect quality and biochemical composition of fruit during storage. Pomegranate (Punica granatum L.) is a non-climactric ... Read More Abstract Background and Objectives Preharvest and harvest conditions can affect quality and biochemical composition of fruit during storage. Pomegranate (Punica granatum L.) is a non-climactric fruit and there is no clear physiological index to determine the proper harvest time. Lack of standard maturity index results in prolonged period of picking pomegranate fruit within the season. The effects of different physical or chemical treatments on postharvest quality of pomegranate fruit have been investigated in many studies, but our knowledge on the pre-harvest and harvest aspects that influence pomegranate fruit postharvest physiology is scarce. The objective of the present experiment was to determine how qualitative indices of pomegranate fruit in ‘Bagmalek’ (Khuzestan, southwest of Iran) are affected by maturity stages at harvest and storage duration. Materials and Methods A factorial design including three harvesting times and three storage durations with three replications was used for statistical analysis. Fruits of ‘Malas Post Zard’ as an important pomegranate cultivar were harvested from a commercial orchard in ‘Bagmalek’ (150 Km Ahwaz, Khuzestan, southwest of Iran). Fruits were harvested at three harvest times at 14-day intervals (14 September, 29 September and 13 October 2011) and stored for 40 and 80 days at +7 oC. Some physical (weight, surface color, decay and shriveling) and biochemical characteristics (ascorbic acid, total soluble solids, titratable acidity, pH, anthocyanin index and browning index) were evaluated. The factors were evaluated at harvest time and after 40 and 80 days. Results Regardless of storage durations, pomegranate fruit showed significant variations in total soluble solids, titratable acidity, pH and anthocyanins. Interactions of the harvest time and storage duration (for 40 and 80 days) were significant on gravity, surface color changes, shriveling, ascorbic, acid, pH, titratable acidity and fruit juice pigments (anthocyanin index and browning index). Results showed that the period 29 September until 13 October 2011 and storage duration for 40 days are the best treatments to maintaining postharvest quality of ‘Malas Post Zard’ fruits in ‘Bagmalek’ (Khuzestan, Iran). Discussion Results showed that quantity and quality indices of the pomegranate could be improved through the selection of proper harvesting time. Harvest of pomegranate fruit at different maturity stages altered fruit appearance quality indices and biochemical characteristics under ‘Bagmalek’ geographic condition, and at early harvest time (14 September), it reduced fruit quality but did not make its consumption unacceptable. More research needs to assess the effect of different climatic parameters such as temperature and light intensity on the postharvest quality of pomegranate fruits in Khuzestan.

Effect of salicylic acid and storage time on quality of mango fruits (Mangifera indica L.)

A.M. Dastjerdi; N. Moradi; E. Rezazadeh; M. Heidari

Volume 37, Issue 1 , June 2014, , Pages 27-36

Abstract

The effects of different levels of salicylic acid (0, 1000, 1500 and 2000 mg. l -1) and three time periods (7, 14 and 21 days) were studied on quality of mango fruits (total soluble ... Read More

Investigation the effect of pollen grain type on mango (Mangifera indica) fruit set and its quality

M. Shamili; R. Fatahi; A. Talaii

Volume 36, Issue 2 , September 2013, , Pages 1-12

Abstract

Mango is one of the tropical crops cultivated in the south of Iran, where it has fewer yields in comparison with other regions of its cultivation. According to reports, cross pollination ... Read More

An Investigation into Different Olive Cultivars Responses to Sarpole Zehab Environmental Condition

I. Arji; A.A. Zeinanloo; A. Hajiamiri; M. Najafi

Volume 35, Issue 4 , March 2013, , Pages 17-27

Abstract

This experiment was conducted to evaluate the adaptation ability of 14 olive cultivars in Dallaho olive research station under a completely randomized block design during 1383 till ... Read More

Preliminary Evaluation of Fruits Characteristics in Selected Mango (Mangifera indica L.) Trees in Minab, (Hormozgan Province), Iran

M. Abbasy; M. Heidari; M.H. Daneshvar

Volume 35, Issue 4 , March 2013, , Pages 117-129

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Keywords = Fruit

Effects of Harvest Time and Storage Duration on Some Physical and Biochemical Indices in Pomegranate (Punica granatum L.) Fruits

Abstract

Effect of salicylic acid and storage time on quality of mango fruits (Mangifera indica L.)

Abstract

Investigation the effect of pollen grain type on mango (Mangifera indica) fruit set and its quality

Abstract

An Investigation into Different Olive Cultivars Responses to Sarpole Zehab Environmental Condition

Abstract

Preliminary Evaluation of Fruits Characteristics in Selected Mango (Mangifera indica L.) Trees in Minab, (Hormozgan Province), Iran

Abstract