|Title:||蘿蔔空心之研究||Other Titles:||Studies on the Pithiness of Radish Roots||Authors:||林秋雄
|Issue Date:||Jun-1982||Publisher:||臺灣省政府農林廳||Start page/Pages:||209-214||Source:||蔬菜作物試驗研究彙報(第一輯)||Abstract:||
The purpose of this study was to investigate the occurrence of pithiness of radish roots in the summer. Experiments involving 7 varieties. 5 planting dates and 4 harvest dates were conducted at Taichung, Taiwan from April to August in 1978. It was found that harvest date was the most important factor in causing the pithiness, followed by planting date and varietal difference. The degree of pithiness radish roots was mainly determined by the average temperature and temperature difference between day and night from 20 days after planting to harvest which was the corpalancy period of the growing roots. Radishes planted on April 15 showed the least degree of pithiness followed by those planted on Aug. 15. Maximum pithiness was observed when radish were sowed in May, June and July. Early harvest or short growth duration also tended to reduce pithiness. Cultivar “Green skin” showed almost no pithiness regardless of planting and harvest dates and could be used as breeding material for improving varieties suitable for growing in the summer season.
|Appears in Collections:||作物組|
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