| 刊名 | Agricultural Biotechnology |
| 作者 | Xinghai SHI1, Jiandong ZHAO2, Xiulian LI1, Wenliang CHEN1, Xiuzhen QIN1, Jun REN1 ,Xiaohuan YANG1, Jinhu MA1 |
| 作者单位 | 1. College of Agriculture, Shanxi Agricultural University, Taiyuan 030031, China; 2. Agricultural Genetic Resources Center, Shanxi Agricultural University, Taiyuan 030031, China |
| DOI | DOI:10.19759/j.cnki.2164-4993.2024.03.002 |
| 年份 | 2024 |
| 刊期 | 3 |
| 页码 | 5-7,13 |
| 关键词 | Tetraploid; Pintianqiao 3; Breeding; Characteristic; Breeding technique |
| 摘要 | [Objectives] This study was conducted to actively carry out the breeding of new tetraploid common buckwheat varieties and its supporting breeding techniques. [Methods] Pintianqiao 3 is a new tetraploid common buckwheat variety developed by College of Agriculture of Shanxi Agricultural University and Agricultural Genetic Resources Center of Shanxi Agricultural University, using 'Pintianqiao 1' as the parent, through mutation treatment with 0.2% colchicine aqueous solution, grain selection, plant selection, isolation and identification, variety comparison, regional test and field investigation. The variety has chromosomes 2n=4X=32, and shows a spring sowing period of 101 d and a summer sowing period of 80 d, large flowers and seeds (with a 1 000-grain weight of 41.4 g), and good resistance to lodging. [Results] From 2021 to 2022, Pintianqiao 3 participated in the independent joint regional test of common buckwheat varieties in Shanxi Province, and the average yield in 10 test positions was 1.8 kg, equivalent to 1 800 kg/hm2, which was 8.4% higher than the control. It passed the field investigation conducted by Shanxi provincial expert group for identification of non-major crop varieties in Dongyang and Kelan experimental sites on September 2-3, 2022. On January 4, 2024, it passed the preliminary examination of Shanxi Provincial Crop Variety Approval Committee. The seed reproduction technique of Pintianqiao 3 including land selection, preparation before sowing, sowing, field management and timely harvesting has been developed. [Conclusions] This study provides technical support for the demonstration and popularization of this new variety. |
