不同品种小黑麦苗期耐低氮胁迫差异研究
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摘要
为研究不同品种小黑麦抗低氮胁迫能力,以7个品种小黑麦幼苗为试验材料,通过正常供氮和低氮胁迫两个处理来进行苗期水培试验。对所培养的7个品种的小黑麦在苗期时进行叶绿素含量、根长、干质量及含氮量的测定,计算氮累积量、氮利用效率及耐低氮指数。结果表明,在低氮胁迫下,7个品种的小黑麦生长均受到显著影响,叶绿素含量、生物量和氮累积量均有所降低,根长增大、根冠比均升高,氮素利用率提高,但品种间受影响程度不同。通过隶属函数综合评价分析,中新830和中饲828为耐低氮品种。
In order to study the ability of different varieties of triticale to resist low nitrogen stress, seven varieties of triticale seedlings were used as experimental materials, and the hydroponic experiment was carried out by two treatments: normal nitrogen supply and low nitrogen stress. The cultivar was tested for chlorophyll content, root length,dry weight and nitrogen content in the seedling stage, and the nitrogen accumulation, nitrogen use efficiency and low nitrogen tolerance index were calculated. The results showed that under low nitrogen stress, the growth of seven cultivars was significantly affected. The chlorophyll content, biomass and nitrogen accumulation decreased; the root length increased; the root-shoot ratio increased and nitrogen use efficiency increased. However, the degree of impact varies among varieties. Through the comprehensive evaluation and analysis of the membership function, Zhongxin 830 and Zhongsi 828 were low nitrogen tolerance varieties.
In order to study the ability of different varieties of triticale to resist low nitrogen stress, seven varieties of triticale seedlings were used as experimental materials, and the hydroponic experiment was carried out by two treatments: normal nitrogen supply and low nitrogen stress. The cultivar was tested for chlorophyll content, root length,dry weight and nitrogen content in the seedling stage, and the nitrogen accumulation, nitrogen use efficiency and low nitrogen tolerance index were calculated. The results showed that under low nitrogen stress, the growth of seven cultivars was significantly affected. The chlorophyll content, biomass and nitrogen accumulation decreased; the root length increased; the root-shoot ratio increased and nitrogen use efficiency increased. However, the degree of impact varies among varieties. Through the comprehensive evaluation and analysis of the membership function, Zhongxin 830 and Zhongsi 828 were low nitrogen tolerance varieties.
引文
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[16]张定一,张永清,杨武德,等.不同基因型小麦对低氮胁迫的生物学响应[J].小麦研究,2006,27(1):1-9.
[17]王艳朋,靳静晨,汤继华,等.作物氮素高效利用研究与现代农业[J].中国农学通报,2007,23(10):179-183.
[2]曹翠玲,李生秀,苗芳.氮素对植物某些生理生化过程影响的研究进展[J].西北农业大学学报,1999,27(4):96-101.
[3]吴巍,赵军.植物对氮素吸收利用的研究进展[J].中国农学通报,2010,26(13):75-78.
[4]朱铁霞,高凯,王国成.小黑麦研究进展[J].内蒙古民族大学学报,2011,26(4):433-437.
[5]孙敏,郭援.小黑麦生物学特性、营养价值及利用前景[J].山西农业大学学报(自然科学版),2003,20(4):200-203.
[6]张锡洲,吴沂珀,李廷轩.不同施氮水平下不同氮利用效率小黑麦植株氮素积累分配特性[J].中国生态农业学报,2014,22(2):151-158.
[7]匡艺,李廷轩,张锡洲,等.小黑麦氮利用效率基因型差异及评价[J].物营养与肥料学报,2011,17(4):845-851.
[8]匡艺,李廷轩,余海英.氮素对不同氮效率小黑麦基因型叶片保护酶活性和膜脂过氧化的影响[J].草业学报,2011,20(6):93-100.
[9]黄婷,董召荣.追施氮肥对小黑麦光合特性的影响[J].中国农学报,2009,25(09):152-156.
[10]赵化田,王瑞芳,许云峰,等.小麦苗期耐低氮基因型的筛选与评价[J].中国生态农业学报,2011,19(5):1199-1204.
[11]吕伟仙,葛滢,吴建之,等.植物中硝态氮、氨态氮、总氮测定方法的比较研究[J]光谱学与光谱分析,2004,24(2):204-206.
[12]郭程瑾,张立军,崔喜荣,等.氮胁迫条件下中国春-代换系小麦苗期耐低氮特征研究[J].植物营养与肥料学报,2011,17(1):29-37.
[13]张朝阳,许桂芳.利用隶属函数对4种地被植物的耐热性综合评价[J].草业科学,2009,26(2):57-60.
[14]冯云超,余志江,霍仕平,等.37个玉米品种耐低氮能力潜势分析[J].华北农学报,2014,29(增刊):310-317.
[15]裴雪霞,王姣爱,党建友,等.耐低氮小麦基因型筛选指标的研究[J].小麦研究,2007,28(2):1-6.
[16]张定一,张永清,杨武德,等.不同基因型小麦对低氮胁迫的生物学响应[J].小麦研究,2006,27(1):1-9.
[17]王艳朋,靳静晨,汤继华,等.作物氮素高效利用研究与现代农业[J].中国农学通报,2007,23(10):179-183.