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Na2CO3胁迫对绿豆种子萌发的影响

2021-11-25袁典方兴宇贾逸清吴文超刘宏权韩会玲

安徽农业科学 2021年20期

袁典 方兴宇 贾逸清 吴文超 刘宏权 韩会玲

摘要 为研究绿豆种子萌发对Na2CO3胁迫响应情况,分别采用0、20、40、60、80 mmol/L Na2CO3溶液对吉绿10号、HN1023-7-2、同111411、保绿201323-3和辽绿PB-02共5个品种的绿豆进行胁迫萌发试验。结果表明,随着Na2CO3溶液浓度的升高,5个绿豆品种的发芽率、发芽势、发芽指数、胚根鲜重、胚根干重、胚芽鲜重、胚芽干重、活力指数、根冠比均有降低的趋势,但低浓度(Na2CO3浓度≤20 mmol/L)盐胁迫不会对种子萌发造成显著性迫害。随着Na2CO3处理浓度的升高,低浓度盐处理与CK的胚芽鲜重无显著差异,其余生长指标均显著降低。综合分析可知,HN1023-7-2耐盐性最强,辽绿PB-02最差。该研究结果可为盐碱地绿豆种植提供一定理论依据。

关键词 绿豆;Na2CO3胁迫;种子萌发;耐盐性

中图分类号 S 522  文献标识码 A  文章编号 0517-6611(2021)20-0032-04

doi:10.3969/j.issn.0517-6611.2021.20.009

开放科学(资源服务)标识码(OSID):

Effects of Na2CO3 Stress on Seed Germination of Mung Beans

YUAN Dian, FANG Xing-yu, JIA Yi-qing et al

(Urban and Rural Construction Institute, Hebei Agricultural University, Baoding, Hebei 071000)

Abstract In order to study the response of mung bean seed germination to Na2CO3 salt stress, 0, 20, 40, 60, 80 mmol/L Na2CO3 solutions were used to compare Jilu No. 10, HN1023-7-  Tong 111411 , Baolu 201323-3 and Liaolu PB-0  and other five varieties of mung beans were used for stress germination experiments. The results showed that with the increase of Na2CO3 solution concentration, the five types of mung bean germination rate, germination potential, germination index, radicle fresh weight, embryo fresh weight, embryo dry weight, vigor index and radicle-to-shoot ratio all tended to decrease, but low concentration (Na2CO3 concentration ≤20 mmol/L) salt stress could not cause significant persecution to seed germination. With the increase of the concentration of Na2CO3 treatment, the fresh weight of germ-excepted germ was not significantly different from that of CK under the low-concentration salt treatment, and the other growth indexes were significantly reduced. Comprehensive analysis showed that HN1023-7-2 had the strongest salt tolerance and Liaolu PB-02 was the worst. The research results provided a certain theoretical basis for mung bean planting in saline-alkali land.

Key words Mung bean;Na2CO3 salt stress;Seed germination;Salt tolerance

基金項目 财政部和农业农村部:国家现代产业技术体系-食用豆(CARS-08-G-22);河北省水利科研与推广计划项目(2017-5 2018-35);河北省节水灌溉装备产业技术研究院基金支持(SC2018005)。

作者简介 袁典(1996—),女,河北邯郸人,硕士研究生,研究方向:咸水灌溉理论与技术。*通信作者:刘宏权,副教授,硕士生导师,博士,从事农田水肥调控及农业水土资源优化利用研究;韩会玲,教授,博士生导师,博士,从事水资源高效利用方面的研究。刘宏权和韩会玲为共同通信作者。

收稿日期 2021-03-12;修回日期 2021-04-08

土壤盐渍化是由自然或人类活动引起的一种环境危害,全世界大约有8.31×108 hm2的土壤受到盐渍化的威胁[1]。盐胁迫和碱胁迫是妨碍植物生长、降低产量的主要逆境因子之一。……

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