甜高粱品種秋植與宿根生育特性比較
Other Title
Performances of Agronomic Characters and Biomass Yield of Sweet Sorghum in Autumn and Ratoon Plantings
Journal
中華農業研究
Journal Volume
33
Journal Issue
4
Pages
372-376
Date Issued
1984-12-04
Date
1984-12-04
Author(s)
邱善美
胡敏夫
S.M. Chiu
M.F. Hu
Abstract
本試驗以28 個甜高粱品種在1982 年秋季（9 月14 日）種植，子實成熟收穫後即行宿根栽培，以探討不同耕作方式及生育環境對生質產量（biomass Production ）及錘度（brix ）等之影響。結果顯示生質平均產量，不論品種為何，秋作（37.6kg / 10m2 ）概較宿根（22.1kg / 10m2 ）為高，其主要原因乃由於在宿根之生長環境下導致莖長及葉數的下降。莖汁平均錘度也以秋作（8.3% ）高於宿根（7.4% ）。自性狀間相關獲知，生質產量（秋作或宿根）與莖高及種子收量呈極顯著正相關、與葉數呈顯著正相關。莖汁之平均錘度與下、中、上部莖錘度之相關極高（0.82-0.99），因此測定其中某一部位的錘度或即具代表性。
Twenty-eight sweet sorghum cultivars/lines were planted in the autumn season ( Sept. 14) of 1982 and their ratoon crop was followed after harvest. The purpose of this study was to compare the biomass yield and the agronomic characters between different cultural practices. Results showed that average biomass yield of the 28 entries was higher in the autumn crop (37.6kg/10 m2) than in the ratoon crop (22.lkg/l0m2). The low yield of ratoon crop was presumed to be related to the decreases in stem length and the number of leaves. Stem brix value was also higher for the autumn crop (8.3) than for the ratoon crop (7.4). For both crops, the yield of biomass was closely correlated with stem hight, seed yield and the number of leaves. The mean brix of the stem was found highly correlated with the brix values of the upper, middle or lower portions of the stem (0.82-0.99), indicating that any part of the stem can be used as material for the determination of stem brix.
Publisher
農業試驗所
Type
journal article
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