溫水處理對臺農一號芒果採後炭疸病之防治效果

楊宏仁; 林瑩達; Yang, H.R.; Lin, Y.T.; 楊宏仁; 林瑩達; Yang, H.R.; Lin, Y.T.

溫水處理對臺農一號芒果採後炭疸病之防治效果

Other Title

Effect of hot water treatment for controlling anthracnose of mango fruits of Tainung No.1 variety

Journal

植物保護學會會刊

Journal Volume

39

Journal Issue

3

Pages

241-249

Date Issued

1997-05

Date

1997-05

Author(s)

楊宏仁

林瑩達

Yang, H.R.

Lin, Y.T.

URI

https://scholars.tari.gov.tw/handle/123456789/8836

https://tpl.ncl.edu.tw/NclService/JournalContentDetail?SysId=A97030223

Abstract

以不同溫度熱水處理生長在玻璃紙上的芒果炭疽病菌五分鐘，發現在49℃以上即能完全抑制其再生長之能力。臺農一號芒果果實以53℃溫水處理5分鐘後，取出降溫、催熟一天，置於28℃/RH 85％之生長箱中觀查發病狀況，三次重複試驗結果皆極穩定。處理後四天，每果實出現不超過三個病斑者，三次試驗之處理組分別為90％、100％、96.7%，而未處理者分別為34.5％、5％、43.3%；果實完全無病斑者，處理組分別為56.7％、85％、86.7%，未處理者分別為24.1％、0％、23.3％。處理後7天時，未超過三個病斑之果實三次試驗之處理者分別為53.3％、85％、63.3%，而對照組三次皆為0%；果實完全無病斑者，處理組分別為40％、25％和6.7%，但對照者皆為0％。處理七天後，對照組每果實之平均病斑數為23.4、26.7及15.2個，而處理組則分別為2.7、2.2及5.3個。溫水處理後果實外表無劣化；第三次試驗在第十二天後所測醣度，處理及對照分別為25.3及22.2brix。 Appressoria of Coiletotrichum gloeosporioides formed on cellophane were dipped into hot water with different temperature for 5 minutes. The ability of fungal regrowth on acidified PDA was completely inhibited by the hot water treatment with temperature higher than 49℃. The fruits of mango Tainung No.1 variety were dipped into the 53℃hot water for 5 minutes, then removed out from the hot water and dripped with tap water to cool down the temperature immediately and ripened for one day. The treated fruits were kept in 28℃ and RH 85 % growth chamber for monitoring anthracnose. All results were very consistent in 3 repeated trials. The percentage of treated fruits at 4th day after hot water treatment with < 3 lesions was 90 %, 100 % and 96.7 % in three trials, respectively, and 34.5 % , 5 % , 43.3 % in untreated fruits,respectively. The values were reduced to 53.3 % , 85 % , 63.3 % for treated fruits, and 0 % for all untreated fruits at 7 days after treatment in the 3 trials, respectively. The percentage of healthy fruits at the 4th day after treatment was 56.7 %, 85 % , 86.7 % in treated fruits and 24.1 % , 0 % , 23.3 % of untreated fruits in three trials, respectively. At the 7th day after ripening, the values were reduced to 40 %, 25 % , 6.7 % for the treated fruits and 0 % for the all untreated fruits. The average number of lesions per fruit was 23.4, 26.7, 15.2 for untreated fruits and 2.7, 2.2, 5.3 for the treated fruits at the 7th day after treatment in three trials. There was no heat damage on the appearance of fruits after 53℃/5 min hot water treatment. The average Brix of treated and untreated fruits were 25.3 and 22.2, respectively, at 12th day after ripening.

Subjects

芒果

台農一號芒果

炭疽病

溫水處理

mango

Tainung No.1 variety of mango

anthracnose

hotwater treatment

Publisher

植物保護學會

Type

journal article

File(s)

Name

39-3-241-249.pdf

Size

1.39 MB

Format

Adobe PDF

Checksum

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