Breeding an Aromatic, High-quality, High-yield Hybrid Rice Yexiangyou 669
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摘要:
目的 选育产量、米质和抗性相协调的香型优质水稻新品种。 方法 利用亲本间的遗传多样性和农艺性状的互补性,以高产、高配合力的父本福恢669与香型、优质、抗病的不育系野香A杂交,结合多生态点抗性鉴定、高温逼熟后品质分析、多年多点品比试验等相结合。 结果 选育出优质、高产、抗病,株叶态协调的杂交稻品种野香优669。 2019–2020年参加福建省中稻区域试验,全生育期两年平均139.8 d, 比对照II优3301早熟1.1 d,产量平均9363 kg·hm−2,比对照增产2.24%,未达显著水平。两年稻瘟病抗性鉴定综合评价为抗稻瘟病,稻米品质达部颁一等优质食用稻品种品质标准,2021年通过福建省农作物审定委员会审定(闽审稻20210014)。野香优669聚合了来自双亲的22个有利基因,其中6个为单方携带,16个为双亲均携带。 结论 野香优669产量高、抗性强、品质好、口感佳,在生产上大面积推广应用,是福建省农业主推品种之一。 Abstract:Objective An aromatic, high-quality, high-yield, disease-resistant rice variety was bred. Method Utilizing the genetic diversity and complementing agronomic traits between the male parent, Fuhui 669 with high yield and combining ability, and the female parent, the fragrant, high-quality, disease-resistant sterile line Yexiang A, a new breed of rice were generated. The hybrid was subjected to multiple ecological resistance identification, a quality analysis after high temperature maturation, and years of multi-point comparison test prior to final selection. Result The high-quality, high-yield, disease-resistant Yexiangyou 669 of a desirable plant type was obtained and submitted to the regional trial for mid-season rice in Fujian from 2019 to 2020. In the 2-year trial, it showed an average growth period of 139.8 d, which was 1.1 d shorter than the reference cultivar, II You 3301, and an average yield of 9 363 kg·hm−2, which was 2.24% higher than control but not statistically significant. It exhibited resistance to rice blast and up to the national Grade A quality. In 2021, it was certified by the Fujian Provincial Crop Approval Committee as the Min Approved Rice No. 20210014. Yexiangyou 669 had inherited 6 desirable genes from one parent and 16 common to both parents. Conclusion The new hybrid rice Yexiangyou 669 had high yield, strong disease resistance, and superb grain quality and was promoted as one of the main varieties in the province. -
Key words:
- Hybrid rice /
- aromatic rice /
- Yexiangyou 669 /
- high quality /
- disease resistance
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表 1 2019–2020年野香优669在福建省中稻区域试验及生产试验中的生育期与产量
Table 1. Yield and growth period of Yexiangyou 669 in 2019–2020 regional trial and production test for mid-season rice in Fujian
试验组别
Type of trial年份
Year品种
Varities生育期
Growth period/d比CK增加
Compare with CK/d产量
Yield/(kg·hm−2)增产率
Ratio compared with CK/%区域试验
Regional trial2019 野香优669
Yexiangyou 669141.1 −0.8 9241.5 2.40 II优3301(CK)
II You 3301(CK)141.9 — 9024.9 — 2020 野香优669
Yexiangyou 669138.5 −1.4 9484.4 2.08 II优3301(CK)
II You 3301(CK)139.9 — 9291.1 — 生产试验
Producting trial2020 野香优669
Yexiangyou 669138.4 −1.1 8642.9 1.59 II优3301(CK)
II You 3301(CK)139.5 — 8507.6 — 表 2 野香优669稻瘟病抗性鉴定结果
Table 2. Blast-resistance of Yexiangyou 669 certified at nurseries
年份
Year试验
地点
Location田间鉴定
Identification in field室内鉴定
Identification in greenhouse综合评价
Comprehensive
evaluation苗叶瘟
Leaf blast穗茎瘟
Panicle blast综合指数
Composite
index穗损失率
最高级别
Top grade of
loss rate抗感类型
Resistance
grade抗菌株率
Resistance rate/%抗感类型
Resistance
evaluation最高级
Top
grade平均病级
Average
grade发病率
Incidence
rate/%发病率级别
Grade of
Incidence
rate损失率
Loss
rate/%损失率级别
Grade of
loss rate2019 上杭
Shanghang4 3 10.50 5 3.53 1 2.50 1 R 94.12 R R 建阳
Jianyang3 2 23.50 5 3.95 1 2.25 R 将乐
Jiangle0 0 0.00 0 0.00 0 0.00 HR 宁化
Ninghua2 1 11.50 5 2.08 1 2.00 R 综合
Average4 1.5 11.38 3.75 2.39 0.75 1.69 R 2020 上杭
Shanghang5 4 3.00 1 0.45 1 1.75 1 R 90.91 R R 建阳
Jianyang3 2 17.00 5 3.10 1 2.25 R 将乐
Jiangle0 0 0.00 0 0.00 0 0.00 HR 宁化
Ninghua3 2 5.00 1 0.70 1 1.25 R 综合
Average5 2 6.25 1.75 1.06 1 1.31 R 表 3 野香优669及其亲本的有利基因检测
Table 3. Desirable genes identified in Yexiangyou 669 and its parents
序号
No.基因名称
Gene name探针类型
Probe type基因类型
Gene type染色体
Chromosome基因功能
Gene function检测品种
Test variety野香A
Yexiang A福恢669
Fuhui 669野香优669
Yexiangyou 6691 Gn1a SNP 产量 1 每穗粒数增加 √ √ √ 2 OsSPL16 INDEL 产量 8 高产 √ H 3 SKC1 SNP 抗非生物逆境 1 耐盐 √ √ √ 4 NRT1.1B SNP 抗非生物逆境 10 增强氮吸收 √ √ √ 5 Rymv1 SNP 抗生物逆境 4 抗病,抗黄色斑驳病毒病 √ √ √ 6 STV11 SNP 抗生物逆境 11 持久抗水稻条纹叶枯病毒 √ H 7 Pi5 单倍型 抗生物逆境 9 稻瘟病抗性 √ H 8 Pia 单倍型 抗生物逆境 11 稻瘟病抗性 √ H 9 Pid2 单倍型 抗生物逆境 6 稻瘟病抗性 √ √ √ 10 Pid3 单倍型 抗生物逆境 6 稻瘟病抗性 √ √ √ 11 Pita 单倍型 抗生物逆境 12 稻瘟病抗性 √ H 12 GW2 SNP 品质 2 大粒 √ √ √ 13 GS3 SNP 品质 3 长粒 √ √ √ 14 OsCYP704A3 SNP 品质 4 长粒 √ √ √ 15 Chalk5 SNP 品质 5 垩白度低,高质量 √ √ √ 16 Waxy SNP 品质 6 非糯的情况下,增加支连淀粉含量 √ √ √ 17 ALK SNP 品质 6 糊化温度升高 √ √ √ 18 Hd3a SNP 生育期 6 促进抽穗 √ √ √ 19 SaF SNP 育性 1 广亲和(粳稻亲和) √ H 20 S5 SNP 育性 6 广亲和(籼稻亲和) √ √ √ 21 Sd-1 INDEL 株型 1 半矮秆 √ √ √ 22 Sdt97 SNP 株型 6 半矮秆 √ √ √ “√”表示所检测品种的基因型与标准品种基因型一致;“H”表示品种中该基因为杂合型。
"√" indicates consistency between genotypes of tested and standard varieties; "H" indicates heterozygous genes.表 4 2021–2023年野香优669在福建省建立示范片的面积及产量
Table 4. Square footage and yield of cultivation demonstration on Yexiangyou 669 in 2021–2023
年份
Year示范地点
Demonstration
location示范面积
Demonstration area/
hm2测产产量
Test yield/
(kg·hm−2)2021 武夷山市吴屯乡 13.3 9043.8 2021 德化县杨梅乡 8.0 未测产 2022 尤溪县管前镇 7.41 13154.1 2022 明溪县城关乡 13.9 10945.2 2022 德化县杨梅乡 8.0 未测产 2022 光泽县鸾凤乡 13.3 10273.5 2023 上杭县泮境乡 8.0 9524.0 2023 德化县杨梅乡 8.0 未测产 平均 Average 10588.1 -
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