ZHANG Xirui,SUN Haizheng,SUN Shuhong,et al.Breeding and Cultivation Technology of A New Rice Variety Longgeng 2305 with High Yield in Cold Regions[J].HEILONGJIANG AGRICULTURAL SCIENCES,2023,(02):117-121.[doi:10.11942/j.issn1002-2767.2023.02.0117]
寒地高产水稻龙粳2305的选育及栽培技术
- Title:
- Breeding and Cultivation Technology of A New Rice Variety Longgeng 2305 with High Yield in Cold Regions
- 文章编号:
- 21
- Keywords:
- Longgeng2305; breeding process; cultivation measures
- 文献标志码:
- A
- 摘要:
- 为了促进寒地高产水稻品种推广，本文对龙粳2305的选育经过、亲缘关系、品种特征特性及配套的栽培措施进行了简要介绍。龙粳2305的母本为高产资源龙粳39，父本为优异材料龙盾204，通过人工杂交手段采用系谱法经多年选育而成。龙粳2305在2020年获得黑龙江农作物品种审定委员会的审定，审定编号：黑审稻20200027。2017－2018年区域试验结果显示平均产量达9 281.8 kg·hm-2，较对照品种龙粳31平均增产7.9%；2019年生产试验多点平均产量为8 563.2 kg·hm-2，较对照品种龙粳31平均增产8.2%。该品种为主茎11片叶早熟粳稻品种，全生育期日数130 d左右，适合种植于黑龙江省第三积温带≥10 ℃有效活动积温2 400 ℃以上的地区，该品种在多年多点鉴定中丰产性突出，株型紧凑，不早衰，抗倒、抗病性强。
- Abstract:
- In order to promote the popularization of high-yield rice variety in cold areas， this paper briefly introduced the breeding process， genetic relationship， variety characteristics and matching cultivation measures of Longgeng 2305. Longgeng 2305 is a new rice variety selected by the pedigree method with Longgeng 39 as the female parent and Longdun 204 as the male parent. Approved by the Approval Committee in 2020(Approval number: Heishendao 20200027). The regional test results showed that the average yield reached 9 281.8 kg·ha-1， an average increase of 7.9% compared with the control variety Longgeng 31 from 2017 to 2018. In 2019， the average yield at multiple points was 8 563.2 kg·ha-1， which was 8.2% higher than that of the control variety Longgeng 31. This variety was a precocity japonica rice with main stem 11 leaves， and the whole growth period was about 130 days. It was suitable for planting in the third accumulated temperature zone of Heilongjiang Province areas which effective accumulated temperature of 2 400 ℃ or more. This variety has the characteristics of outstanding yield， compact plant type， no premature senility， strong resistance to collapse and disease.
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备注/Memo
黑龙江省农业科学院应用研发类项目（2021YYYF033）；黑龙江省农业科学院非竞争性项目（2020FJZX036）。