[[abstract]]三島柴胡臺農1號之親本源自日本之三島柴胡，為常異交作物，自交純化不易。本所自民國57年引入三島柴胡種子後，即利用混合選種法，淘汰生產力顯著低落及品質較劣植株，並選拔生長勢旺盛及高saponin含量之植株，混合其飽滿種子，共經七年選種而成。並依序進行品種觀察試驗、品種比較試驗、產量調查及三次區域試驗，綜合上述試驗結果可知，新品種具有產量穩定、品質優越及適應力大之優點。在乾根平均公頃產量方面，新品種高出三島柴胡約27.7％，在saponin含量方面，新品種為三島柴胡之1.12倍高，此外新品種之適應能力大增，已能在較高溫之平地栽培，且植株間之變異程度已經減小。因此獲得審查通過，命名為三島柴胡臺農1號。 三島柴胡臺農1號之植株生育強健，一年生株高可達80cm，莖直立質堅，葉互生，植株下半部葉形較大，葉長約15cm，寬約1.5cm，花為複繖形花序，果實為分裂果，種子長橢圓形，千粒重1.23─1.68g。由歷年各地區試驗根產量之綜合比較可知，栽培於中高海拔山坡地一年生根產量都在l , 000 kg/ha以上，平地一年生產量約為690 kg/ha，一年半生為1,168 kg/ha，根中saponin平均含量為2.75％，變域為1.05─7.43％。 Bupleurum falcatum L. cv. TARI No. 1 was developed through mass selection from three sources of Bupleurum falcatum L. imported from Japan in 1968. Stable yielding potential, high quality, and wide adaptability of the new cultivar were identified through preliminary observation, varietal comparison, yield investigation, and three regional trials. It was released as a new medicinal variety in 1989. Bupleurum falcatum L. cv. TARI No. 1 is a perennial herb with erect growth habit, about 80cm in height after one-year cultivation. Leaves are opposite and larger at the base of the plant which measures at l5cm in length and l.5cm in width. Flowers in compound umbels are yellow in color and small in shape. Fruit is dehiscent with two oval-oblong seeds with 1,000-seed-weight of l.23-1.68g. Experimental data indicated that root dry yield over 1,000 kg/ha was obtained after one-year cultivation on the slopes at medium to high altitudes. The yield was about 690 kg/ha and 1, l68 kg/ha in the lowland after one-year and one and half years of cultivation, respectively. The crude saponin content in the root averaged at 2.75%, with a range of 1.05-7.43%. The variety possesses wide adaptability and it can be grown well at low to high altitude with little variability among plants.