蘭陽地區夏季短期葉菜類種子預措、播種密度及覆蓋材料之研究

Influence of Seed Pretreatment, Sowing Density and Cover Materials on Growth of Summer Leafy Vegetable in Yilan Area

楊宏瑛(Hung-Ying Yang)

《花蓮區農業改良場研究彙報》 15期 (1998/03) Pp. 38-46

https://doi.org/10.6957/RBHDAIS.199803.0038

摘要

蘭陽地區夏季短期葉菜類主要為小白菜、莧菜及萵苣三種，本研究擬探討種子預措對發芽之效果、適當之播種密度以減少疏苗之人工，配合利用覆蓋材料降低害蟲為害之機會，以提高品質。結果顯示播種四日後小白菜（黃金或新嘉坡二品種）及葉萵苣種子預措處理在室溫（25℃）下浸種12小時的發芽係數可達98以上，莧菜則以5℃下浸種8小時發芽係數即達91以上。夏季種植小白菜以黃金白菜及新嘉坡白菜較佳，播種密度為4kg/ha，產量達12.7m.t./ha以上。莧菜以白莧菜或屏東軟枝青骨二品種，播種密度5kg/ha，產量達13.4m.t./ha。覆蓋物以不織布效果最佳，白莧菜產量為17.7m.t./ha，黃金白菜則為16.5m.t./ha，對品質提升效果最明顯，約減少2/3蟲孔數。

關鍵字

蔬菜 ； 種子預措 ； 播種密度 ； 覆蓋 ； 發芽係數 ； 小白菜 ； 莧菜 ； 葉萵苣

並列摘要

Experimental results showed that the germination coefficience of Pok Choi and Lettuce were higher than 98 after 4 days of soaked at room temperature for 12 hours. Amaranthus had germination coefficience more than 91 on 5℃ for 8 hours treatment. Pok Choi Golden and Chiguapo showed optimum growth in summer and the highest yield were more than 12.7 m.t./ha with the planting density of 4 kg/ha. The best varieties of Amaranthus were White and Pendon in summer and produced the highest yield of 13.4 m.t./ha with 5 kg/ha sowing density. The quantity and quality of Amaranthus and Pak Choi were highly improved when covered with non-woven fabric which produced 17.7 and 16.5 m.t./ha yield respectively, and the numher of insect bite was reduce to two-third.

並列關鍵字

Vegetable ； Seed pretreatment ； Sowing density ； Cover materials ； Germination coefficience ； Pok Choi (Brassica pekinensis) ； Amaranthus (Amaranthus mangostanus L.) ； Lettuce (Lactuca sativa L.)