不同低温贮藏对粳稻种子发芽及秧苗素质的影响
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摘要
探讨水稻种子在不同温度处理条件下的发芽和秧苗素质情况,为种质资源的长期保存提供参考。以津川1号、津原45、津稻417、和越光为供试材料,对不同温度处理下粳稻种子的发芽和秧苗素质情况进行了调查。结果表明,当年收获以及低温处理的隔年水稻种子和室温放置处理相比,发芽速度较快,发芽势和发芽指数明显较高,而品种间的差异并不明显。在秧苗素质方面,室温放置条件下的种子,经过发芽培养后,在苗高、叶色、单位苗高茎叶干重以及单苗总根长、表面积、体积和根尖数上明显较低,品种间除茎基部宽厚度、单位苗高茎叶干重和根尖数外,其余各项指标均存在显著差异。
In order to provide a reference for long-term preservation of germplasm resources,rice varieties of Jinchuan 1,Jinyuan 45,Tianjin rice 417 and Koshihikari were used as materials,the germination and seedling quality of Japonica rice seeds under different temperature treatment conditions were investigated.The results showed that the germination potential rate and the germination index of Japonica rice seeds in the same year after harvest or low temperature treatment were higher than that of room temperature treatment,but the difference among varieties were not obvious.In seedling quality,seeds placed under room temperature were significantly lower in seedling height,leaf color,dry weight of per centimeter and total root length,surface area,volume and root tip number of single seedlings.Among the varieties,there were significant differences in all indicators except for width and thickness of stem base,dry weight of per centimeter,number of root tips.
In order to provide a reference for long-term preservation of germplasm resources,rice varieties of Jinchuan 1,Jinyuan 45,Tianjin rice 417 and Koshihikari were used as materials,the germination and seedling quality of Japonica rice seeds under different temperature treatment conditions were investigated.The results showed that the germination potential rate and the germination index of Japonica rice seeds in the same year after harvest or low temperature treatment were higher than that of room temperature treatment,but the difference among varieties were not obvious.In seedling quality,seeds placed under room temperature were significantly lower in seedling height,leaf color,dry weight of per centimeter and total root length,surface area,volume and root tip number of single seedlings.Among the varieties,there were significant differences in all indicators except for width and thickness of stem base,dry weight of per centimeter,number of root tips.
引文
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[19]张来林,李岩,陈娟,等.不同储藏温度及储藏方法对稻谷品质的影响[J].粮食与饲料加工,2011(7):17-19.
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[22]朱世杨,郭媛,洪德林,等.水稻种子抗老化遗传分析[J].遗传,2008,30(2):217-224.
[23]潘圣刚.水稻超高产栽培及调控措施研究[D].华中农业大学,2010.
[24]张顶鹤.臭氧、秧苗素质和移栽密度对稻米品质的影响[D].扬州大学,2012.
[2]张其昌,蔡义忠.贮藏库温对杂交水稻种子活力和细胞膜系统超微结构的影响[J].种子,1995,14(2):8-12.
[3]LU X.X.,CHEN X.L..Characteristics and warning indexes of rice seeds viability loss during storage at 45℃constant temperature[J].Agriculture Sci.in China,2002,1(8):911-915.
[4]段永红,李小湘,李卫红.水稻种子贮藏过程中活力衰退规律及性状变化初探[J].种子,2009,28(1):101-104.
[5]张凤.低温贮藏对不同含水量种子活力的影响[D].山东农业大学,2014.
[6]Whitehouse K.J.,Hay F.R.,Ellis R.H..High-temperature stress during drying improves subsequent rice(Oryza sativa L.)seed longevity[J].Seed Science Research,2017,27(9):281-291.
[7]Wang W.Q.,He A.B.,Peng S.B,et al.The effect of storage condition and duration on the deterioration of primed rice seeds[J].Frontiers in plant Sci.,2018,9(2):1-17.
[8]黄上志,傅家瑞.贮藏温度和相对湿度对杂交水稻种子耐藏性的影响[J].植物生理学通讯,1986(6):35-42.
[9]张馨予.种子仓储除湿系统的试验与仿真研究[D].华南农业大学,2016.
[10]吴晓亮,辛萍萍,张志娥,等.水稻种子室温贮藏最适含水量及其热稳定蛋白的研究[J].中国农业科学,2006,39(11):2 214-2 219.
[11]胡群文,卢新雄,辛萍萍,等.水稻种子在不同气候区室温贮藏的适宜含水量及存活特性[J].中国水稻科学,2009,23(6):621-627.
[12]黄先晖,杨远柱,姜孝成,等.水稻种子脱水耐性的形成及其与贮藏特性的关系[J].种子,2010,29(7):25-29.
[13]胡群文,辛霞,陈晓玲,等.水稻种子室温贮藏的适宜含水量及其生理基础[J].作物学报,2012,38(9):1 665-1 671.
[14]周建明,林一波,朱正斌,等.粳稻种子干燥前存放时间对发芽活力及出苗的影响[J].种子,2013,32(4):86-92.
[15]朱丽伟.杂交水稻种子成熟过程活力、生理生化和耐藏力的变化及脱水剂应用效果的研究[D].浙江大学,2015.
[16]沈杭琪,胡伟民,林程,等.不同脱水剂对杂交水稻制种种子质量及基因表达的影响[J].作物学报,2017,43(9):1 308-1 318.
[17]成广雷.国内外种子科学与产业发展比较研究[D].山东农业大学,2009.
[18]张其昌,蔡义忠.贮藏库温对杂交水稻种子活力和细胞膜系统超微结构的影响[J].种子,1995,14(2):8-12.
[19]张来林,李岩,陈娟,等.不同储藏温度及储藏方法对稻谷品质的影响[J].粮食与饲料加工,2011(7):17-19.
[20]邱汉,吕恩利,段洁利,等.适宜水稻种子贮藏环境参数的研究现状与分析[J].江苏农业科学,2016,44(11):15-18.
[21]REN G.,PENG Min,TANG W.J.,et al.QTL associated with seed aging in rice[J].Acta Agronomica Sinica,2005,31:183-187.
[22]朱世杨,郭媛,洪德林,等.水稻种子抗老化遗传分析[J].遗传,2008,30(2):217-224.
[23]潘圣刚.水稻超高产栽培及调控措施研究[D].华中农业大学,2010.
[24]张顶鹤.臭氧、秧苗素质和移栽密度对稻米品质的影响[D].扬州大学,2012.