頁籤選單縮合
題名 | 不同穴格與苗齡對有機結球萵苣生育之影響=Effect of Plug Size and Seedling Age on the Seedling Growth of Organic Head Lettuce |
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作者姓名(中文) | 戴振洋; 蔡宜峰; | 書刊名 | 臺中區農業改良場研究彙報 |
卷期 | 128 2015.09[民104.09] |
頁次 | 頁53-63 |
分類號 | 435.252 |
關鍵詞 | 有機栽培; 結球萵苣; 穴格; 苗齡; Organic cultivation; Head lettuce; Plug size; Seedling age; |
語文 | 中文(Chinese) |
中文摘要 | 本研究目的在於探討不同穴格(60格、128格、288格)與苗齡(3週齡、5週齡、7週齡)對有機結球萵苣穴盤苗及田間定植後生育之影響。試驗結果顯示,在定植前結球萵苣穴盤苗以60格7週齡穴盤苗之園藝性狀表現較佳,不論是株高、莖粗、葉長、葉寬、地上部鮮重、地下部鮮重、葉數、地上部乾重、地下部乾重等均較他處理者佳。利用幼苗絕對生長速率G值作為評估結球萵苣穴盤苗品質指標,其與葉球重相關性達顯著水準。綜合本試驗結果使用較大的60格穴格培育萵苣穴盤苗,苗齡以3~5週齡為宜,採收時葉球重可達1公斤,而苗齡7週齡的萵苣穴盤苗,定植後會有15.6%發生抽苔的情形。如果考量育苗成本,使用介質容量較少的128格育苗,苗齡為3週齡,而288格3週齡穴盤苗則對結球萵苣生育等整體表現顯著較差,因此,在有機栽培時不建議使用。 |
英文摘要 | The objective of this study was to investigate the effects of different plug sizes (60, 128, and 288 cells) and seedlings age (3, 5, and 7 week-old) on the growth of seedling stage and after transplanting in organic head lettuce cultivation. The results indicated that the 7 week-old seedlings cultivated in 60 cell plug tray had better horticultural characteristics such as the plant height, stem diameter, leaf length, leaf width, shoo t fresh weight, root fresh weight, number of leaves, shoot dry weight as well as root dry weight than other treatments. Using absolute growth rate value (G value), which was an optimal index for evaluating quality of plug tray seedlings. The G value showed close relationship with its head weight at harvest. In conclusion, 3 to 5-week old seedling planting in the big plug tray (60 cells) was the most optimal treatment for nursing. The head weight could reach to 1 kg at harvest. Besides, 15.6% bolting would be occurred if the seedling age was older than 7-week. Although, 3 week-seedling planting in 128 cell plug tray had low production cost, however, their growth was significantly poorer. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。