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頁籤選單縮合
題名 | 苗齡對辣椒穴盤苗生長特性之影響=Effect of Seedling Age on Growth Characteristics of Transplanted Chili Pepper (Capsicum annum L.) |
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作者 | 石郁琴; 曹幸之; 曾美倉; | 書刊名 | 植物種苗 |
卷期 | 1:2 民88.07 |
頁次 | 頁119-130 |
分類號 | 435.27 |
關鍵詞 | 苗齡; 辣椒; 壯苗指標; 穴盤育苗; Seedling age; Chili pepper; Capsicum annum L.; Seedling quality; Plug seedling; |
語文 | 中文(Chinese) |
英文摘要 | Various growth characteristics were evaluated on chili pepper (Capsicum annum L., ‘Ever-flavor’) seedlings of different ages at and after transplanting. The seedling age was counted as days after cotyledon unfolding, six seedling ages, i.e. 30, 34, 38, 42 and 46 days in spring and 24, 28, 32 and 36 days in fall were evaluated. The relative seedling index and average daily growth (G value) of spring and fall chili pepper were similar and ranged between 0.04-0.08 and 3.4-5.3 mg day-1, respectively. The seedlings over 42 days of age had a reduced G value in spring. The leaf area ratio was 300 for seedlings of 30 days of age and decreased for older seedlings. The relative growth rate (RGR) of plant dry weight was highest for seedlings of 30 days of age at the first week of transplanting (WAT). No significant difference was observed at 2 WAT for all ages of seedlings. Lower RGR was obtained in 46-day seedlings at 4 WAT. In fall, younger seedlings of 24 and 28 days of age had higher RGR than seedlings of 32 and 36 days of age. No significant difference was observed at 3 WAT for all ages of seedling. The younger seedlings flowered later than older seedlings of 32 and 36 days of age by 7 days. However, all seedlings had the same first flowering node, early yield and total yield. The best seedling age for chili pepper transplants was not beyond 42 days in spring and between 24-36 days in fall. |
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