Development and Utility of Storable Indica Restorer Line, Fuhui 7185
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摘要: 福恢7185(FH7185)是以优良恢复系福恢653为受体亲本, 以耐储藏品种云恢290为供体亲本, 采用连续回交与系统选育的方法, 育成的籼型杂交水稻新恢复系; 该恢复系集株叶形态好、农艺性状优良、配合力高、恢复力强、耐储藏性好等优点于一体, 具有较好的市场应用价值和潜力。对比FH7185与对照的颖壳和淀粉粒显微结构, 发现FH7185颖壳上麸毛最少, 人工老化处理20 d后淀粉粒结构相对整齐, 这与人工老化结果一致, 说明FH7185具有较高的耐储性, 可以利用其创制出更多的耐储藏材料。Abstract: A new variety of indica hybrid rice restoring line, Fuhui 7185, was developed by crossing and successive back-crossing with systemic selection between the strong restoring line, Fuhui 653, and a storable variety, Yunhui 290.The obtained Fuhui 7185 had desirable leaf morphology, agronomic traits, combining ability, resilience and storability that would enjoy high value and commercial potential on the market.Under microscope, the testas of Fuhui 7185 showed fewer trichomes than those of control.And, the structure of starch granules remained relatively unaltered after artificial aging for 20 d, suggesting a high storability for the newly developed hybrid rice.
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Key words:
- hybrid rice /
- Fuhui 7185 /
- storable /
- back-crossing /
- development /
- utility
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图 2 FH7185与对照种子人工老化处理前后发芽率情况
Figure 2. Seed germination rates of Fuhui 7185 and control variety before and after artificial aging
图 3 FH7185所配杂交稻组合人工老化处理前后发芽率情况
注:图中A为YH290, B为FH653, C为FH7185, D为和6028/FH7185, E为云109A/FH7185, F为福龙A/FH7185, G为荃9311A/FH7185, H为内香10A/FH7185, I为长泰A/FH7185, J为广8A/FH7185, K为徽1892S/FH7185, L为明2A/FH7185, M为隆科638S/FH7185。
Figure 3. Seed germination rates of new hybrid rice combinations from Fuhui 7185 before and after artificial aging
图 4 扫描电镜观察不同水稻材料颖壳上麸毛的分布情况
注:A为YH290, B为FH7185, C为FH653, D为H2。Bar = 100 μm。
Figure 4. Scanning electron microscopy images of trichomes on testas of Yunhui 290, Fuhui 7185, Fuhui 653 and H2
图 5 扫描电镜观察不同水稻材料人工老化处理前后胚乳淀粉粒结构
注:Bar = 10 μm。
Figure 5. Scanning electron microscopy images of starch granules of Yunhui 290, Fuhui 7185 and H2 before and after artificial aging
表 1 FH7185所配组合的产量性状
Table 1. Yields of new hybrid rice combinations from Fuhui 7185
组合 穗数 平均穗长/cm 实粒数 总粒数 结实率/% 千粒重/g 株高/cm 每667 m2理论产量/kg 明优 7185 11.3±1.8 24.9±0.7 1634.3±269.3 2288.3±310.3 0.71±0.04 25.3±0.9 109.0±0.6 620.2 长泰优 7185 9.7±0.3 21.4±0.3 1901.7±19.4 2265.7±33.2 0.84±0.01 25.2±0.1 93.3±0.3 718.8 Ⅱ优明 86 11.3±1.2 23.0±0.5 1808.3±266.9 1907.3±273.6 0.95±0.005 25.8±0.1 110.7±1.8 699.8 广8优 7185 15.0±2.1 23.1±0.3 2981.7±280.7 3586.3±382.8 0.83±0.01 21.0±0.6 101.7±0.7 939.2 荃优 7185 9.7±0.9 22.5±0.1 1763.7±192.1 1873.7±205.1 0.94±0.005 29.2±0.3 104.3±0.7 772.5 隆两优 7185 8.7±0.3 22.7±0.1 1393.3±68.9 1469.0±66.4 0.95±0.006 28.2±0.3 107.3±1.2 589.4 深两优 7185 10.0±0.0 22.5±0.3 1170.3±20.4 1579.0±42.1 0.74±0.008 26.9±0.7 108.7±0.7 472.2 丰两优 4号 9.7±0.3 19.5±1.5 1237.7±20.2 1518.0±57.5 0.82±0.03 28.6±0.6 98.0±0.6 531.0 和两优 7185 11.7±2.2 23.8±0.3 1664.0±235.1 2011.0±367.8 0.84±0.03 23.8±0.2 98.3±0.3 594.0 
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表 2 杂交水稻新品种明优7185在广西区早造迟熟组预试表现
Table 2. Performance of new hybrid Mingyou 7185 in pretest for late-maturing rice from Guangxi regions
品种名称 每667 m2产量/kg 产量位次 比CK±/% 全生育期/d 比CK ±/d 每667 m2有效穗/万穗 株高/cm 穗长/cm 总粒/(粒·穗-1) 实粒/(粒·穗-1) 结实率/% 千粒重/g 明优 7185 572.2 1 11.94 125.4 3.6 16.6 125.4 26.5 155.4 131.1 84.3 29.7 特优 7118(CK) 511.1 11 0.00 121.8 0.0 16.9 118.0 21.8 155.1 135.6 87.3 26.2
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