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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (33): 65-70.

所属专题： 生物技术； 马铃薯

• 农学 农业基础科学 • 上一篇    下一篇

不同贮藏方式对木薯种茎发芽及其相关生理特性影响研究

樊吴静 罗兴录 阮榆   

  • 收稿日期:2012-02-23 修回日期:2012-03-21 出版日期:2012-11-25 发布日期:2012-11-25
  • 基金资助:

    广西自然科学基金重点项目；广西南宁市科科学研究与技术开发计划项目。

Effects of Different Storage Methods on Germination and Physiological Indexes of Seed-stem of Cassava

LUO Xing-LU   

  • Received:2012-02-23 Revised:2012-03-21 Online:2012-11-25 Published:2012-11-25

PDF (PC)

672

摘要：

为了探讨不同贮藏方式对木薯种茎发芽及其相关生理特性的影响，以‘新选048’和‘桂热3号’木薯品种为材料，采用露地堆放和室内堆放2种不同贮藏方式对种茎进行处理，观察测定种茎发芽情况、生理生化特性、幼苗茎叶生长情况等。结果表明，露地堆放贮藏种茎发芽较快、发芽整齐、发芽率较高，其中‘新选048’露地堆放种茎发芽率及发芽势均最大，分别为100%和98.89%，而‘桂热3号’室内堆放发芽势和发芽率最小，分别为94.44%和77.78%。‘新选048’和‘桂热3号’露地堆放丙二醛含量比室内堆放分别降低了42.41%和48.90%，游离脯氨酸含量分别增加了10.44%和14.41%，可溶性糖含量分别增加了7.91%和9.14%，可溶性蛋白质含量分别增加了4.88%和5.36%。幼苗株高分别增加了5.78%和8.30%；茎径分别增加了10.87%和11.60%。此外，该研究还表明，‘新选048’比‘桂热3号’发芽快，长势较好，抗逆性也较强。

关键词: 道地性, 道地性

Abstract:

This study investigated the effects of different storage methods on germination and physiological indexes of seed-stem of cassava. The cassava cultivar ‘Xinxuan 048’ and ‘Guire 3’ was used as materials, and the outdoor stockpiling and indoor stockpiling were compared in the studies. The germination, the physiological and biochemical characteristics, the growth of stem and leaf were analyzed during the experiment. The results showed that, not only the seed-stem germination of outdoor stockpiling storage was earlier, but also the germination rate was higher. Among them were ‘Xinxuan 048’ of the germination rate and the germination energy were the highest in outdoor stockpiling storage, they were 100% and 98.89%, and ‘Guire 3’ which the germination rate and the germinationenergy were the lowest in indoor stockpiling storage, they were 94.44% and 77.78%. ‘Xinxuan 048’ and ‘Guire 3’ which malondialdehyde content were outdoor stockpiling storage than indoor reduced respectively 42.41% and 48.90%, the content of free proline increased by 10.44% and 14.41%, soluble sugar increased by 7.91% and 9.14%, and soluble protein increased by 4.88% and 5.36%. The seedling height increased by 5.78% and 8.30%. Stem diameter increased by 10.87% and 11.60%. Also, the ‘Xinxuan 048’ seed-stem germination was earlier, the germination rate was higher, the resistance was stronger than ‘Guire 3’.

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