套袋與環剝對紅龍果果實生長之影響
Other Title
E ects of bagging and girding of fruit growth of the Hylocereus undatus
Start Page
101
End Page
107
ISBN
978-986-04-7219-6
Date Issued
2015-12
Author(s)
黃琇亭
林慧玲
Shiou-Tng Huang
Huey-Ling Lin
Abstract
套袋可減少光線透過率，導致葉綠素葉含量下降而能增進果實轉色；環剝主要影響韌皮部的運輸及葉片光合產物之分配。紅龍果果實轉色前果肉酸度會有一短暫高峰出現，為釐清此現象與果皮轉色之相關性，進行果實的套袋與環剝處理。期能了解果肉酸之變化是否為提供果皮轉色之主要物質與光合產物運移是否具相關性。紅龍果果實套袋後增加果皮亮度，並且套袋對果實內部成份皆無顯著影響。開花後16天進行紅龍果肉質莖環剝處理則會提早果實轉色促進果實的後熟，此外，環剝顯著減少果實大小、果肉可滴定酸、有機酸、可溶性醣、葡萄糖和果糖等成分，並延緩有機酸之高峰出現，主要因此階段為澱粉合成旺盛時期，環剝處理減少光合產物碳水化合物的供給所致。由上述結果顯示，果實有機酸之合成與代謝是否提供果皮轉色之重要成分有待進一步之研究。
Bagging practice reduces the transparent rate of light and causes the decrease in chlorophyll content which increases color turning of pitaya fruits. Girdling treatment mainly in uences the phloem transport and the partitioning of leaf photosynthetic assimilates. Fruit acidity of pitaya reaches to a peak temporarily right before the fruit color turning. To gure out the relation of fruit acidity and color turning, and whether the change in fruit acidity is due to photosynthetic assimilate transportation as the substance for color turning, bagging and girdling treatments were applied. Bagging increased peel lightness
of pitaya fruit, and has no signi cant in uence to fruit quality. Girdling treatment at 16 days after anthesis caused early color turning and induced fruit ripening. Besides, Girdling also signi cantly decreased fruit size, titratable acidity, organic acid content, soluble sugar, glucose, fructose content, and delays the peak of organic acid assimilation. This may due to the reduced supplement of photosynthetic assimilate by girdling in this stage, which underwent vigorousstarch synthesis. According to our data, whether the synthesis of organic acid in fruit provide critical substance for peel color turning was unclear, further
research will perform.
Event(s)
台灣紅龍果生產技術改進研討會
Subjects
紅龍果
套袋
環剝
Publisher
農業試驗所
Type
book part
File(s)![Thumbnail Image]()
Loading...
Name
no187-9.pdf
Size
763.9 KB
Format
Adobe PDF
Checksum
(MD5):8ad797e5435674a28ec1c8021fa285c9