浙江农业学报 ›› 2025, Vol. 37 ›› Issue (11): 2249-2257.DOI: 10.3969/j.issn.1004-1524.20231016

• 作物科学 • 上一篇    下一篇

紫心甘薯品种金薯20的选育与生长特性

杨志坚1,2(), 阮妙鸿3, 林珊珊3, 林世强1, 廖素凤1,2, 陈选阳1,2,4,*()   

  1. 1.福建农林大学 农业农村部海峡两岸农业技术合作中心,福建 福州 350002
    2.福建农林大学 闽台作物生物育种农业农村部重点实验室,福建 福州 350002
    3.福建省种子总站,福建 福州 350009
    4.福建省作物设计育种重点实验室,福建 福州 350002
  • 收稿日期:2023-08-28 出版日期:2025-11-25 发布日期:2025-12-08
  • 作者简介:杨志坚(1981—),男,福建泉州人,硕士,副教授,研究方向为甘薯新品种选育与开发利用。E-mail:yangzj41@163.com
  • 通讯作者: *陈选阳,E-mail:cxy@fafu.edu.cn
  • 基金资助:
    福建省科技厅高校产学研联合创新项目(2020N5013);福建省科技厅引导性项目(2020N0003);福建省种业工程项目(zycxny2021005);福建省财政厅项目(闽财指〔2021〕848号)

Breeding and growth characteristics of purple sweet potato cultivar Jinshu 20

YANG Zhijian1,2(), RUAN Miaohong3, LIN Shanshan3, LIN Shiqiang1, LIAO Sufeng1,2, CHEN Xuanyang1,2,4,*()   

  1. 1. Cross-Strait Agricultural Technology Cooperation Center, Ministry of Agriculture and Rural Affairs, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
    2. Key Laboratory of Biological Breeding for Fujian and Taiwan Crops, Ministry of Agriculture and Rural Affairs, Fujian Agriculture and Forestry University, Fuzhou 350002, China
    3. Seed Center of Fujian Province, Fuzhou 350009, China
    4. Fujian Key Laboratory for Crop Breeding by Design, Fuzhou 350002, China
  • Received:2023-08-28 Online:2025-11-25 Published:2025-12-08

摘要:

为选育花青素含量高、食味优、适应性强且商品性佳的鲜食型紫心甘薯新品种,本研究以产量高、花青素含量高的福宁紫3号为母本,以优质、薯形美观的金薯3号为父本,经人工杂交和系谱选择育成新品种金薯20,并通过国家品种登记[GPD甘薯(2020)350069]。2年区域试验表明,金薯20平均鲜薯产量33.28 t·hm-2,较对照福宁紫3号增产21.02%;花青素含量16.72 mg·kg-1,食味评分比对照福宁紫3号提高1.35分;单株结薯数为5.43,薯块大小均匀、商品性好;抗蔓割病。金薯20生育期为135~140 d,是相对早熟品种;叶面积指数前期增长较慢,后期缓慢下降;较耐肥,沙地栽培下,以N、P2O5、K2O质量比为2∶1∶3、每667 m2施纯氮15 kg时产量较高。研究结果可为金薯20在生产上推广应用提供技术依据。

关键词: 紫心甘薯, 金薯20, 品种选育, 产量, 抗病性, 花青素

Abstract:

To breed a fresh-market purple sweet potato cultivar combining high anthocyanin content, superior eating quality, wide adaptability and excellent marketability, we crossed the high-yielding, high-anthocyanin cultivar Funingzi No.3 (female parent) with the premium-quality, good-appearance cultivar Jinshu No.3 (male parent). After artificial hybridization and pedigree selection, the new cultivar Jinshu 20 was obtained and officially registered [GPD Sweetpotato (2020) 350069]. Two years of regional trials showed that Jinshu 20 produced an average fresh tuber yield of 33.28 t hm-2, 21.02% higher than that of the control (Funingzi No.3). Its anthocyanin content reached 167.2 mg kg-1, and its eating-quality score was 1.35 points above that of the control. The cultivar formed 5.43 tubers per plant with uniform size and high commercial value, and exhibited resistance to fusarium wilt. Jinshu 20 matures in 135-140 d and is therefore relatively early. Its leaf area index increased slowly at early stages and declined gradually later, indicating high fertilizer tolerance. In sandy soils, the highest yield was achieved with 15 kg pure nitrogen per 667 m2 applied at a N∶P2O5∶K2O mass ratio of 2∶1∶3. These results provided a technical basis for the popularization and application of Jinshu 20 in production.

Key words: purple sweet potato, Jinshu 20, variety breeding, yield, disease resistance, anthocyanin

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