行政院農業委員會台南區農業改良場  研究彙報第32號

麻豆白柚春梢與抽穗及結果習性之探討

陳溪潭

摘  要

陳溪潭.1995.麻豆白柚春梢與抽穗及結果習性之探討。台南區農業改良場研究彙報32:33~44。

麻豆白柚植株於果實生長期間,其枝梢葉片落葉率極小,於十月間果實採收時僅為10%左右,冬季期間落葉量亦不大,春梢萌發前之2月中旬為20%,春梢萌發後4月上旬達90%,顯示春梢萌發期間,枝梢有大量更換葉片之現象,其落葉率因不同生長環境而異。植株之春梢萌發率為86.3%,春梢萌發位置以頂梢為最多,倒數第二梢次之,倒數第三梢最少,分別為84.6%、11.5%及3.9%。春梢結果枝形成率為31.7%,其在結果母枝之著生位置,亦以頂梢為最多,倒數第二梢次之,倒數第三梢最少,分別為86.9%、12.5%及0.6%,且頂梢有較高比率之帶葉花序,植株春梢結果枝之最後結果率為3.4∼4.8%。

關鍵詞:麻豆白柚、春梢、花序、結果。

接受日期:1995年2月6日。


Studies on the Characteristics of Spring Flush on the Inflorescence Formation and Fruit-set of “Matou Peiyu” (Citrus Grandis)

Chen, H. T.

Summary

The less leaf drop was observed during the fruit growing period because leaf drop was accumulated only to 10% in October when the fruits were harvested.  Not much of leaf drop was also observed from October to early February of the next year.  Before the shooting of spring flush in middle February leaf drop increased to 20%.  Since then leaf drop increased greatly to 90% in early April.  The data showed that most leaf drop occurred in the growth period of spring flush.  Meanwhile, different amount of leaf drop varied in different growth environments.  Within a plant, 86.3% of the flushes were appeared in the spring and 84.6, 11.5, and 3.9% of them were the terminal, the last second and the last third shoot, respectively.  Of the spring flushes, 31.7% were able to produce inflorescence, and most of the inflorescence were developed from the terminal shoot, followed by the last second and the last third shoot, they were counted for 86.9, 12.5, and 0.6%, respectively.  More leafy inflorescence Percentage were observed in the terminal shoot.  Of the inflorescence shoots, only 3.4~4.8% were found with final fruit set.

Key words: matou peiyu, spring flush, inflorescence, final fruit-set.

Accepted for publication: February 6, 1995.



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