Able, A.Wong, L.Prasad, A.O'Hare, T.2007-07-052007-07-052002Postharvest Biology and Technology, 2002; 26(2):147-1550925-52141873-2356http://hdl.handle.net/2440/34613Florets of broccoli (Brassica oleracea var. italica L.) and the youngest fully expanded leaf detached from pak choy (Brassica rapa var. chinensis) were treated with 1-methylcyclopropene (1-MCP) overnight (16 h) and then stored at supermarket retail temperature (10 °C). A concentration of 12 μl l−1 was considered optimal for both pak choy leaves and broccoli florets. 1-MCP increased shelf life of broccoli florets by just greater than 20% but had little effect on pak choy shelf life (increases between 10 and 20%) in the absence of exogenously applied ethylene. Multiple applications had no further impact while 1-MCP needed to be applied as soon as possible after harvest to have maximal effect. If 1-MCP treatment was applied overnight at 20 °C prior to storage at 10 °C, its effect was slightly increased. However, 1-MCP did protect broccoli and pak choy from the effects of exogenously applied ethylene (0.1 or 1 μl l−1) suggesting it may be useful during retail or storage with ethylene-producing commodities. Differences between the efficacies of 1-MCP on florets compared with leaves are discussed.enEthylenePak choyBroccoliLeafy vegetable1-MethylcyclopropeneStorageJournal articleRQF000003510.1016/S0925-5214(02)00011-X0001780418000032-s2.0-003672922013955Able, A. [0000-0003-1135-6515]