【作者】 卢炜丽；

【导师】 李跃进；

【作者基本信息】 内蒙古农业大学 ， 土壤学， 2006， 硕士

【摘要】 本文通过采用盆栽试验和溶液试验相结合的方式,对内蒙古地区的主栽小麦品种永良4号的芽期及幼苗期的耐盐性进行研究。试验共设置了6种盐分、7个浓度的42个处理,再加1个对照,共计43个处理。这6种盐分分别为:NaCl、Na2SO4、Na2CO3、NaCl+Na2SO4、NaCl+Na2CO3、Na2SO4+Na2CO3,7个浓度分别为0.1%、0.2%、0.3%、0.4%、0.5%、0.6%、0.7%。采用的指标有:发芽率、胚根重、胚芽重、出苗率、株高、种子根数、种子根总长度、苗干重。通过对这些指标的统计分析,结果表明:发芽率与盐分种类、浓度差异显著,但与盐分种类及浓度的交互效应差异不显著。胚根重、胚芽重、出苗率、株高、种子根数、种子根总长度,这几个指标与盐分种类、浓度、盐分种类及浓度的交互效应差异显著。各盐分对各指标的影响顺序不完全一致。胚根重、胚芽重、出苗率、株高、苗干重,这几个指标随着盐分浓度的增加,值要减少;种子根数、种子根总长度,在低浓度时,这两个指标的值会增加,高浓度时,这两个指标的值会降低。更多还原

【Abstract】 The salt-tolerance of Yongliang 4 wheat which is the mainly growth Inner Mongolia was studied via pot culture and solution culture. In this paper the salt-tolerance of the wheat was studied in germination stage and seedling stage. There were six kinds of salt and seven gradient concentration, then added up one contrast, the total were forty-three treatments. These six salts were NaCl、Na2SO4、Na2CO3、NaCl+Na2SO4、NaCl+Na2CO3、Na2SO4+Na2CO3.Seven concentration was 0.1%、0.2%、0.3%、0.4%、0.5%、0.6%、0.7%.The index had germination rate、the weight of radicle、the weight of embryo、seedling rate、plant height、the number of seminal root、the total length of seminal root and dry weight of seedling. The results showed by statistics that germination rate was significant different to the salt、the concentration, but not different to the alternately of salt and concentration . The weight of radicle、the weight of embryo、seedling rate、plant height、the number of seminal root and the total length of seminal root were significant to the salt、the concentration, the alternately of salt and concentration. Salts had different orders to these index. The weight of radicle、the weight of embryo、seedling rate、plant height and dry weight of seedling, as salt contents increasing, the value of these index was dropped. The number of seminal root and the total length of seminal root were increased in lower contents, and reduced in higher contents.更多还原