栽培畦向與施用微量元素對綠蘆筍嫩莖葉綠素形成之影響研究

Abstract

本文研究施用微量元素及不同畦向對葉綠素之形成研究，其結果為： (一)微量元素對嫩莖葉綠素之形成並無明顯效果(土壤pH6.2～6.5)。 (二)畦向對嫩莖葉綠素之形成有關而以南北畦向之含量高於東西畦向。 (三)依時期來說，則以11月份及4月份溫度較低時，葉綠素含量較高溫度較高之6月份，葉綠素含量則較低，此因溫度較高，生長較快之故。 The studies were on effect of minor elements application and different row direction in the chlorophyll formation in green asparagus. Results indicated that: (1) There was no significant efficiency for chlorophyll formation with minor elements application. (Soil pH value 6.2~6.5). (2) It was obvious that row direction was considered significantly in determining the chlorophyll formation, the chlorophyll content of spears harvested from the rows for north-south direction were higher than those from the rows of west-east direction. (3) The chlorophyll content of spears harvested was higher in November (temperature 25~30℃) and April (temperature 20~28℃) than that of spears harvested in June (temperature above 30℃). Particularly, it was highest in November. The reason is due to the spears growing very rapidly during the high temperature (above 30℃), in this case the chlorophyll content would be low, and the period of spears harvested in November (temperature 25~30℃) were suitable for the chlorophyll formation so that the chlorophyll content would become high.