为了保障甘谷辣椒产业健康发展，选育出适宜当地栽培的辣椒新品种，天水市农业科学研究所对甘谷线辣椒生产田发现的制干优良单株采用网室选育和日光温室加代选育相结合的系谱选育方法，育成了制干线辣椒新品种天椒17号。在2015 — 2016年进行的甘肃省线辣椒新品种多点区域试验中，天椒17号2 a 12点(次)干椒平均折合产量为5 011.80 kg/hm2，较对照品种甘谷线椒增产14.71%。天椒17号为早中熟制干线辣椒，定植到红果成熟历时100 d左右。株高84.5 cm，生长势较强。果线型，果顶尖，果面皱，果长20.40 cm，果粗1.20 cm，果肉厚0.12 cm，单果重7.4 g，单株结果51个左右，青熟果深绿色，红熟果深红色，辣味强。椒果辣椒素含量为0.091 g/kg，二氢辣椒素含量为0.063 g/kg，可溶性固形物含量为148.300 g/kg，抗坏血酸含量为744 mg/kg，斯科维尔指数(SHU)为2 650，辣度为18度。中抗烟草花叶病毒病、疫病，高抗黄瓜花叶病毒病。适宜在甘肃省河西、陇中、陇东南地区及气候条件相近地区栽培。

In order to ensure the healthy development of the Gangu pepper industry and select new pepper varieties suitable for local cultivation, the Tianshui Institute of Agricultural Sciences adopted the pedigree selection method of combining net room selection and solar greenhouse with additional selection for the excellent dry single plant found in the Gangu line pepper production field, and bred the new dry line pepper variety Tianjiao 17. In the multi-point regional test of new pepper varieties in Gansu Province conducted in 2015 and 2016, the average yield of dry pepper of Tianjiao in 2 a(12 points) was 5 011.80 kg/ha, which was 14.71% higher than that of the control variety Gangu pepper. Tianjiao 17 is an early and medium ripening dried pepper, which takes about 100 days from planting to ripening of red fruits. The plant height is 84.5 cm and the growth potential is strong. The fruit is linear, top, wrinkled, 20.40 cm in length, 1.20 cm in thickness, 0.12 cm in flesh thickness, 7.4 g in weight per fruit, and about 51 fruits per plant. The green ripe fruit is dark green, the red ripe fruit is dark red, and the spicy taste is strong. Capsaicin content of pepper fruit is 0.091 g/kg, dihydrocapsaicin content is 0.063 g/kg, soluble solids content is 148.300 g/kg, scorbic acid content is 744 mg/kg, Scoville index(SHU) is 2 650, and spicy degree is 18 degrees. It is moderate resistant to tobacco mosaic virus and epidemic disease, andis highly resistant to cucumber mosaic virus. It is suitable for cultivation in Hexi, central and southeast Gansu and areas with similar climatic conditions.

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甘肃省重点研发项目(21YF5NE206)；天水市科技支撑项目“甘谷线椒种质资源材料创新与利用研究及产业化”。