effects of pre-storage application of salicylic acid (sa) and storage periods were investigated on phenylalanine ammonia lyase (pal) activity, chilling index (ci) and quality of pomegranate (punica granatum) cv. malase saveh. the results showed that with increase in sa concentration up to 2mm, ci and ion leakage (il) were reduced while pal activity being increased. the lower il and ci vc the hi...

the pomegranate fruits of cvs. malas yazdi and malas ashkezar were immersed in sa (1 and 2 mm from source of acytyl salicylic acid) for five minutes, in ja (0.3 and 0.4 mm from source of n-propyl dihydrojasmonate) for fifteen minutes, in cacl2 (1 and 2%) for five minutes, and in distilled water for five minutes as control. then, the fruits were stored in cold storage at 1.5±0.5ºc and 85±5% rela...

The succinate oxidation capacities of mitochondria isolated from mango fruits (Mangifera indica L.) stored at 4, 8, 12, and 20 C were investigated during storage. In normally ripening fruits (at 12 and 20 C) the oxidative capacities increased during the first 10 days and then decreased slowly. At lower temperatures (4 and 8 C), the fruits showed chilling injury symptoms, after about 10 days of ...

The degree of tubulin polymerization in cotton (Gossypium hirsutum L. cv Acala) cotyledonary tissue was estimated by radioimmunoassay which measured the amount of a tubulin-like factor. It was assumed that the release of this tubulin-like factor indicated depolymerization of microtubules. Exposure to chilling resulted in complete release of the tubulin-like factor. Pretreatment with abscisic ac...

Salicylic acid (SA) was sprayed on “Seddik” mango transplants at concentrations of 0, 0.5, 1, and 1.5 mM. Then, the were subjected to 72 h chilling stress 4 ± 1 °C, followed by a six-day recovery under greenhouse conditions. Untreated exposed represented positive control, while those not negative control. SA-pretreated compared controls, evaluating physiological biochemical changes. The SA conc...

Fresh fruits have good flavor and high nutritional value, but in the postharvest stage they will age decay rapidly, so we need to find green fruit preservatives. And natural organic acids are promising preservatives due their safety effectiveness. The present work reviews recent applications of quality management discussed its potential biochemical mechanisms. This indicates that numerous effec...