复合盐碱处理下烤烟品种发芽特性耐盐性评价,此文是一篇盐碱论文范文,为你的毕业论文写作提供有价值的参考。
盐碱论文参考文献：
摘 要：为探讨不同烤烟种子萌发期耐盐特性,以5个烟草品种为供试材料,在发芽期采用不同质量浓度的复合盐碱处理,研究其对烟草品种主要发芽特性的影响.结果表明,低浓度盐碱（0.2%、0.4%）不同程度提高了K326、红花大金元和云烟97的发芽率和发芽势,红花大金元和K326的发芽指数也较对照有所增高；中高浓度盐碱（≥0.6%）降低了各品种种子的发芽率、发芽势及发芽指数,而干重始终随盐碱浓度增大而减小,盐害率则随浓度增大而增大.低浓度的复合盐碱促进部分烤烟品种（K326、红花大金元、云烟97）萌发,而高浓度盐碱对供试品种的萌发有强烈的抑制作用.不同品种对盐碱的耐受力不同,低盐碱下红花大金元、云烟87和K326表现相似且良好,云烟97次之,中烟100较弱；中高盐碱处理下,K326和云煙87、云烟97表现较好,红花大金元次之,中烟100较弱.
关键词：复合盐碱；烤烟；品种；发芽特性；耐盐性
中图分类号：S572.01文章编号：1007-5119（2017）03-0037-07 DOI：10.13496/j.issn.1007-5119.2017.03.007
Germination Characteristics of Flue-cured Tobacco Varieties under Mixed Salt-alkali Stresses and Evaluations of Their Saline-alkali Tolerance
YE Xiefeng1, ZHANG Xiaofan1, ZHENG Xianbin2, MA Jing1, LIU Xiaohan1, ZHOU Hanjun1,FU Zhongyi1
（1. Tobacco Science College of Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research Centre, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou 450002, China； 2. Staff Development Institute of China National Tobacco Corporation, Zhengzhou 450002, China）
Abstract： The aim of the study was to evaluate the saline-alkali tolerance of different flue-cured tobacco varieties and screen for flue-cured tobacco varieties suitable for growing in saline-alkali soils. Five flue-cured tobacco varieties （Yunyan87, K326, Honghuadajinyuan, Yunyan97 and Zhongyan100） were treated with 0, 0.2%, 0.4%, 0.6%, 0.8% and 1% saline alkali withn （NaCl）：n（Na2SO4）：n（NaHCO3）等于1：1：1.Germination rate, germination potential, germination index, vigor index, salt injury index, fresh and dry weight per plant were recorded. The results showed that the low concentration（0.2%, 0.4%） saline-alkali treatments promoted the germination rate and viability of K326, Honghuadajinyuan and Yunyan97 in different degrees, and the germination indexes of Honghuadajinyuan and K326 were higher than CK. High concentrations（≥0.6%） of saline-alkali inhibited the germination rate, viability and index of all varieties.Dry weight decreased with the increase of saline-alkali concentration, and salt injury rate increased with salt concentration. The low concentration saline-alkali solutions could promote some varieties of flue-cured tobacco （Honghuadajinyuan, Yunyan97）, while high concentration saline-alkali solutions had strong inhibition effects on germination of testing varieties. Under low salinity （0.2%, 0.4%）, Honghuadajinyuan, Yunyan87 and K326 had similar tolerance to salinity-alkalinity stresseswith a good performance, while Yunyan97, Zhongyan100 had poor performance. Under high concentrations （≥0.6%） of saline-alkali, K326 and Yunyan97, Yunyan87 performed better, followed by Honghuadajinyuan, and Zhongyan100 had a bad performance.
结论：适合不知如何写盐碱方面的相关专业大学硕士和本科毕业论文以及关于盐碱地适合种植什么论文开题报告范文和相关职称论文写作参考文献资料下载。
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