Cutting propagation and acidifier effects inrabbiteye blueberries
Date Issued
2012
Date
2012
Author(s)
Hsu, Lung-Chun
Abstract
Rabbiteye blueberries have low chilling requirement and adapt to the hot and humid summer of Taiwan’s lowland, but propagation technology and fertilizer management has yet to investigate. The purpose of this thesis is to explore the effect of different seasons and spike parts on survival rate, root and shoot growth of rabbiteye blueberries and the effect of acid fertilizer to shoot growth, medium pH and conductivity of rabbiteye blueberries.
semi-hardwood cuttings taken in autumn had greater average root length, shoot number and shoot length than cuttings taken in summer. Shoot numbers of the second flush in autumn cuttings were more than those in summer cutting. Cutting taken from the base of shoots had longer shoot length, had the best performance. The effects of spike parts to shoot growth were no difference. Root ability were no significant difference among cultivars. ‘Tifblue’ had highest rooting rate when cutting was taken in autumn, but there was no difference among cultivars in the summer. Plant growth of ‘Blueshower’ was better than the other cultivars.
The use of acidifier decreased medium pH and increased electrical conductivity In the first fertilizer experiment, the effects of fertilizer to shoot length and leaf numbers of blueberry were no difference. ‘Woodard’ after application of ammonium sulfate and ammonium sulfate plus phosphate processing had maximum shoot length. In the second fertilizer experiment, ammonium sulfate treatments had the highest total shoot length in all tested cultivars.
Subjects
rabbiteye blueberry
softwood cutting
fertilizer management
SDGs
Type
thesis
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