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題 名 | 種植密度對落花生植株乾物質生產與分配的影響=Effects of Planting Density on Dry Matter Production and Partition of Peanut |
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作 者 | 蔡秀隆; 朱德民; | 書刊名 | 國立屏東技術學院學報 |
卷 期 | 5:1 1996.03[民85.03] |
頁 次 | 頁1-8 |
分類號 | 434.257 |
關鍵詞 | 落花生; 種植密度; 乾物質生產; 分配; Peanut; Planting density; Dry matter production and partition; |
語 文 | 中文(Chinese) |
中文摘要 | 為探討種植密度對於落花生乾物質生產、分配及其對產量的影響,選用臺南選9號 (Spanish型)與NC.Acc.550(Virginia型)兩品種進行種植密度試驗。 臺南選9號以35×15cm 處理區的單位面積莢果產量最高,NC.Acc.550則以45×22cm 處理區最高,分別為3695 kg ha�笐覬P4362 kg ha�笐薄C最高種植密度,無論是臺南選9號 或 NC.Acc.550,其單株生長速率與單株莢果生長速率均降低,單株莢果產量亦減低。 兩型植株莢果著生情形對於種植密度的改變,反應不同。當種植密度增加時,臺南選 9號成熟莢的比例降低,第一分枝(子葉節分枝)的莢果對產量的貢獻逐漸降低,但增加 第二分枝莢果的貢獻比例,主莖的莢果對產量的貢獻亦增加。單位面積莢果生長速率亦隨 著種植密度的增加而降低,乾物質分配係數降低。至於NC.Acc.550卻相反,成熟莢的比例 隨著種植密度的增加而增加,第一分枝與第二分枝莢果對產量的貢獻亦隨著增加,單位面 積莢果生長速率增大,乾物質分配係數亦隨著增大。 |
英文摘要 | This study was initiated to determine the effect of planting density on dry matter production and partition in Taichung area. Two peanut cultivars, TNS9 (Spanish type) and NC.Acc.550 (Virginia type), were grown in four planting densities. Lower planting density increased pod yield per plant, but decreased pod yield per unit area. In terms of pod yield per unit area, the optimum planting density for TNS9 and NC.Acc.550 are 35 × 15cm and 45 × 22cm, respectively. For two tested varieties, increasing planting density tended to decrease crop growth rate per plant, pod growth rate per plant and to increase leaf area index and crop growth rate per unit area. Increasing planting density decreased partitioning coefficient of TNS9 and increased that of NC.Acc.550. The contributed percentage of pod number and pod yield in the first branch (cotyledonary branch) decreased and second branch increared in TNS9, in contrast, the contributed percentage of pod number and pod yield in the first and second branch increased in NC.Acc.550 as planting density increased. However, increased planting densithy decreased the contributed percentage of pods in upper branchs in TNS9 and NC.Acc.550. |
本系統中英文摘要資訊取自各篇刊載內容。