ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effect of bolting on postharvest chlorophyll degradation of Japanese radishes.

Fukushima, T.; Murayama, H.; Katoh, C.;

Journal of the Japanese Society for Horticultural Science Year: 1993 Vol: 61 Issue: 4 Pages: 933-939 Ref: 11 ref.

1993

บทคัดย่อ

The rapidity of postharvest chlorophyll degradation in Japanese radish cultivars Hayabutori-Tokinashi, Houryou and Soubutori-Miyashige was studied. Seeds were sown on 10 May and the first harvest occurred on 19 June when half of the Soubutori-Miyashige plants had bolted. The bolted plants and the non-bolted plants of Hayabutori-Tokinashi and Houryou were harvested and kept at 20 deg C. On 4 July when half of the Houryou plants began to bolt, both the bolted and non-bolted plants and non-bolted Hayabutori-tokinashi plants were harvested and stored at 20 deg . At harvest and 3 days later, leaves at different positions were analysed for chlorophyll content. Leaf chlorophyll level decreased more rapidly 3 days after storage in plants harvested on 4 July than it did in those harvested on 19 June. The degradation took place more rapidly in lower than in upper leaves and the rate was accelerated in bolted plants. The respiration rate of bolted plants in the dark was slightly higher than that of non-bolted ones. The rate of ethylene evolution of Hayabutori-Tokinashi plants was the fastest. There was no correlation between the rates of ethylene evolution and chlorophyll degradation.