EXPERIMENTS ON THE MECHANICAL HARVESTING OF LITCHI AND ITS EFFECTS ON LITCHI STORAGE
EXPERIMENTS ON THE MECHANICAL HARVESTING OF LITCHI AND ITS EFFECTS ON LITCHI STORAGE
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DOI：
10.13031/trans.12185
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发表时间：
2017-01-01
影响因子：
1.5
通讯作者：
Qiu, G.
中科院分区：
文献类型：
--
作者：
Wang, W.;Lu, H.;Qiu, G.
本文介绍了一种为荔枝(Litchi chinensis Sonn.)机械振动筛脱层化学处理收获及现场试验结果。在荔枝成熟期，对妃子笑荔枝进行了机械采收试验和不喷施脱落药剂(2-氯乙基磷酸)的试验。测定了果实脱落力(FDF)和果重(W)，以确定化学处理对FDF/W比值的影响。将不同采收方法采收的荔枝果实运输到广州市的实验室，在6℃下贮藏。结果表明，在26或32赫兹的频率下，未经该药剂处理的荔枝果实有88%以上被去除，采收率约为手工采收的3.5倍。脱落剂的使用可使荔枝果实脱落率和采收率提高10%左右，同时降低了果实的损伤率。贮藏试验也表明，未经处理的水果在摇床和手工收获的水果之间没有明显的差异。但处理果实的褐变指数和总可溶性固形物含量与未处理果实存在显著差异。
This article presents a fruiting branch shaker designed for litchi (Litchi chinensis Sonn.) harvesting and field testing results of the mechanical shaker with abscission chemical treatment. During the mature litchi season, mechanical harvesting experiments were conducted on Feizixiao litchi trees with and without applying the abscission chemical (Ethrel, 2-chloroethyl phosphoric acid). Fruit detachment force (FDF) and fruit weight (W) were measured to determine the effect of chemical treatment on the FDF/W ratio. Fruits harvested by different methods were transported to the laboratory in Guangzhou city and stored at 6 degrees C. Testing results showed that more than 88% of litchi fruits untreated with the chemical were removed at a frequency of 26 or 32 Hz and that the harvesting rate was roughly 3.5 times greater than that of hand harvesting. Application of the abscission chemical increased the removal percentage and harvesting rate of litchi fruits by about 10% while showing a decreased damage rate. Storage tests also indicated no significantly different characteristics between untreated fruits harvested by the shaker and by hand. However, there were significant differences between treated fruits and untreated fruit in browning index and total soluble solids content.