花蓮地區落花生生長分析

Growth Analysis of Peanut in Hualien District

簡文憲(Wen-Hsien Chien)

《花蓮區農業改良場研究彙報》 2期 (1986/03) Pp. 7-8

摘要

為探討在花蓮地區不同期作、不同品種其產量構成因子之變化及利用淨同化速率（NAR），作物生長速率（CGR）及葉面積指數（LAI）等生長介量做為測定落花生之生長潛能。本試驗以台南選9號及台南10號兩品種分別在73年春、秋兩作進行生長分析，經試驗結果產量構成因子如成熟莢數、百莢重、百粒籽實重，剝實率及飽滿度參試兩品種，春作較秋作高。葉面積指數（LAI）兩參試品種春秋作均於始花期後急速上升，其變異在生長初期時差異不大、淨同化速率（NAR）之變異在充實期前兩品種在春秋二作均能維持一段的高NAR時期而後降低。作物生長速率（CGR）二參試品種生育初期皆以秋作較高，而後期皆以春作較高，由於LAI、NAR、CGR於生育後期皆以春作為高，導致春作產量高於秋作。

並列摘要

The purpose of this study was to compare the two cultivars with their growth pattern in the spring and fall crop seasons in Hualien area. Two spanish type cultivars; TP-9 and Tainan No. 10 were studied in the experiment that carried out at Chi An, Hualien prefecture. The results obtained were summarized as follows: The maximum leaf area indices observed wrer 5.75 (Spring) and 5.11 (fall) in TP-9; 4.86 (Spring) and 4.88 (fall) in Tainan NO. 10, respectively. In net assimilation rate, the two cultivars did not differ significantly, although TP 9 had higher crop growth rate (per day per m^2) than Tainan NO. 10. In general the spring crop showed higher LAI, NAR and CGR in late growth stage. As a result the spring crop was found to be more productive than the fall crop.