查詢結果分析
來源資料
頁籤選單縮合
題名 | 栽培密度對大小粒型落花生植冠生產力的影響 |
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作 者 | 李瑞興; 侯金日; | 書刊名 | 中華農學會報 |
卷期 | 164 1993.12[民82.12] |
頁次 | 頁17-30 |
分類號 | 434.257 |
關鍵詞 | 大小粒型; 栽培密度; 植冠生產力; 落花生; |
語文 | 中文(Chinese) |
中文摘要 | 在1991年秋作及1992年春作以大粒型品種臺南11號及小粒型品種臺南選9選在行距35公分(二行畦,畦寬90公分),株距12、10及8公分三種密度下進行試驗,探討密植對落花生植冠發育與生產力的影響,結果如下: 1.臺南選9號在秋作之單位面積莢果產量及單位面積籽粒產量隨密度之提高而增加,但春作則不隨密度之提高而增加;臺南11號在春、秋兩期作之單位面積莢果產量及籽粒產量均不隨密度之提高而增加。兩型品種一般春作均有較高之HI,產量春作亦均高於秋作。 2.兩型品種,隨著植株密度提高,植冠的初期發育較快,較早達到最高CGR;在最高CGR、最大LAI期及最大PFR期均隨密度升高,有較大之LAI。兩型品種之ULR不同期作下與密度之反應不一致。 3.節莢前預貯於營養器官內之可移性物質對莢果充實具有稍許貢獻。臺南11號(大粒型)於秋、春作,在始莢前所蓄積的乾物質轉移到莢果的比例隨密度之提高而增加,臺南選9號對密度無明顯之反應。臺南11號現行同化物貢獻於莢果生長的量,於秋、春兩期作較高在87~95%;臺南選9號在秋作較低70~80%,春作較高80~92%。 |
英文摘要 | In the fall crop of 1991 and the spring crop of 1992, two peanut cultivars differing in seed size were seeded with different intra-row spacings to determine the effect of plant density on the development and productivity of peanut canopy. Generally, the pod yield and harvest index of both cultivars in the spring crop was higher than those in the fall crop. Pod and kernel yield of Tainan S.9 (small seed type cultivar) per unit land increased with increasing plant density in fall crop, but was not changed when plant density was increased in the spring crop. Pod and kernel yield of Tainan 11 (large seed type cultivar) per unit land was not increased with increasing plant density in the spring and the fall crop. In both cultivars, early canopy development was hastened and maximum crop growth rate was reached earlier when plant density increased. Leaf area index (LAI) of both cultivars at the stage of maximum CGR. At the stage of maximum LAI, and the stage of maximum PFR increased with increasing plant density. But, the relationship of ULR and plant density of two cultivars was different. Pre-podding assimilates which stored in vegetative organs had some contributions to final pod yield. The proportion of pre-podding assimilates translocated to pod in Tainan 11 (large seed type cultivar) was higher when plant density was increased. Contradictory, the proportion of pre-podding assimilates translocated to pod in Tainan S.9 (small seed type cultivar) was not chaneged when plant density was increased. Current assimilates fixed during pod filling stage of Tainan 11 contributed 87-95% to final pod yield in both the spring and the fall seasons. In Tainan S.9, 94-92% and 70-80% of current assimilates fixed during pod filling stage contributed to the final pod yield in the spring and the fall crop, respectively. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。