บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Influence of ethephon (2-choloroethyl phosphonic acid) plus K2SO4 on the process of ripening and internal browning in pineapple (Ananas comosus (L) Merr. cv mauritius) under cold storage

K.P.G.A. Nanayakkara, H.M.W. Herath, Y.D.A. Senanayake

ISHS Acta Horticulturae 666:315-319

2005

บทคัดย่อ

Influence of ethephon (2-choloroethyl phosphonic acid) plus K2SO4 on the process of ripening and internal browning in pineapple (Ananas comosus (L) Merr. cv mauritius) under cold storage

Effects of preharvest treatments during 1- 4 weeks before estimated harvest with 5% K2SO4, 5% K2SO4 + ethephon (10ppm), and ethephon (50ppm and 100ppm) sprays o­n ripening and internal browning were studied in "Mauritius" pineapple. At a five percent level of K2SO4 + ethephon (100ppm) spray, four weeks before harvest, the fruit quality such as TSS, K content, and flavour increased and the harvest period was shortened by 5-7 days. The time of application, i.e. spraying with K plus ethephon (50-100ppm) 4 weeks before harvest had an influence o­n the fruit maturity. Thus, interaction between time of application and the levels of concentration of K2SO4 + ethephon influenced TSS%, internal browning and harvest period. At 5% K2SO4 + ethephon (10ppm) spray four weeks before harvesting fruit size and yield were not affected. However, titratable acidity (TA), total soluble solids (TSS%) and TSS/TA ratio increased with the application of K plus ethephon (100ppm) spray four weeks before harvest.