三島柴胡育種指標性狀之篩選與利用
Other Title
Screening and utilization of breeding indicators in Bupleurum falcatum L.
Journal
臺灣地區藥用植物資源之開發與利用學術研討會專刊
Part Of
農業試驗所特刊第48號
Pages
69-84
Date Issued
1995-04
Date
1995-04
Author(s)
黃秋蘭
郭能成
Chiou-Lan Huang
Neng-Cheng Kuo
Abstract
一、柴胡育種指標性狀的篩選
為提高柴胡育種選拔效率，以三島柴胡及台農一號為材料，於1989年10月播種，在種子成熟之生育盛期（播種後8個月），逢機取樣調查各項農藝性狀、產量及有效成分Saikosaponin含量，分析各性狀間的相關程度，結果地上部各部位產量與根部產量成正相關，相關值最高者為莖粗，可作為選育高產之指標性狀；然而這些產量性狀與藥效成分Saikosaponin含量皆呈負相關，僅最低分枝節位的高度與Saikosaponin含量成正相關，可作為選育高成分之參考指標性狀。
二、利用指標性狀進行混合選種
本研究以離地基部10公分之莖粗作為選拔高產之指標性狀，進行混合選種，經過一年之選拔結果，在頻度分布圖上族群產量分布向右推進，減少了低產頻度，選拔後地上部產量平均為95公克／株，較原族群50.9公克／株，增加許多，但族群分散程度亦仍大為б=62.8；根部產量選拔後平均為3.29公克／株，亦較原族群2.n公克／株增加，惟族群分散程度亦仍大，б=2.19，表示族群產量仍有增進之空間。
1.The screening for selective indicators in buplever
This screening practice was employed for the purpose of the improvement in breeding efficiency. Both buplever populations, one introduced from Japan and the other Tailung No.1 variety, were sown in Oct. 1989 as materials for selection. The random sampling surveys for agronomic characteristics, including most yielding components and saikosaponin contents in roots were conducted during the growth stage ofluxuriant vegetation in the 8th month after sowing. Analyzing the data of measured characteristics, it was found that all evaluated yields of plant aerial parts were almost positively correlated with the counterpart root yields. Among them, the characteristic of main stem width was suggested to be a feasible selective indicator for high-yield root selection due to its highest correlation with the root yield. On the contrary, saikosaponin content, the identified medicinal effective ingredient in plant, showed negative correlation with those mentioned yielding components ,except the trait of height fromground to the lowest node in stem, having positive correationwith saikosapoin content, was determined to be the other alternative indicator for selectining high saponin plants.
2.Mass selection performance by selective indicator in high-yielding roots breeding program
Following the result of indicator screening, the recommended trait-main stem width was utilized to conduct in mass selection as selective indicator to improve root yield. As one year ran, determing from the statistical figures of frequence distribution, the selected population (Ml) yield moved rightward compared to the original population, means a positive root-yield improvement, and then reduced frequence of lower-yield plants concurrently.
The gains followed this experiment showed that the aerial-part weight per plant raised up to a average of 95g compared to the original population with 50.9g, and still had large dispersion with б=62.8. As to the crucial root yield, also somewhate increased in selected population with 3.29g per plant, more than the original one with 2.llg,the maintaining large dispersion due to б=2.19 implyed the potential for further improvement.
Event(s)
臺灣地區藥用植物資源之開發與利用學術研討會
Proceeding of A Symposium on Development and Utilization of Resources of Medicinal Plants in Taiwan
Subjects
柴胡
指標性狀
混合選種
buplever
indicator
mass selection
Publisher
農業試驗所
Type
conference paper
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