Impact of salicylic acid on the physiological and quality attributes of guava (Psidium guajava) fruits during storage at low temperature

oleh: J VENU MADHAV, SHRUTI SETHI, R R SHARMA, SHALINI G RUDRA

Format: Article
Diterbitkan: Indian Council of Agricultural Research 2016-09-01

Deskripsi

Guava (Psidium guajava L.) fruits of cv. Allahabad Safeda were treated with salicylic acid (SA) or 5-sulfosalicylic acid (SSA) at 1 mM and 2 mM concentration and stored at 10oC for 12 days. After storage, fruits were transferred to ambient conditions for 3 days shelf-life stimulation period and then observations were recorded up to 12+3 days. Results revealed that fruits treated with SA or SSA at 2 mM concentration showed minimum weight loss and colour change but maintained maximum firmness, total phenolics and ascorbic acid content. Fruits treated with SA or SSA @ 2 mM also showed suppressed and/or delayed the respiration and ethylene production and minimum increase in SSC as compared to untreated samples. Hence, SA or SSA 2 mM can be effectively used for maintenance of desired post-harvest quality and extending the market life of guava fruits during storage at 10oC followed by 3 days of stimulated shelf-life period.