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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (4): 208-211.

所属专题： 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

低氮胁迫对不同甘蔗基因型的影响初报

李 翔 王伦旺 方锋学 杨荣仲 李廷化 黄家雍 黎焕光 谭 芳 唐仕云 黄海荣   

  • 收稿日期:2010-11-30 修回日期:2010-12-31 出版日期:2011-02-10 发布日期:2011-02-10
  • 基金资助:

    广西农业科学院科技发展基金项目;广西甘蔗研究所基本科研业务专项;广西应用基础研究专项

The effects of Low Nitrogen Stress on Different Sugarcane Genotypes

  • Received:2010-11-30 Revised:2010-12-31 Online:2011-02-10 Published:2011-02-10

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摘要：

为研究不同甘蔗基因型在低氮胁迫下的主要农艺性状、产量和品质性状等方面的表现，以‘新台糖22号’为对照，对04系列6个甘蔗新品系进行新植品比试验。试验结果表明：04/1028、04/1531、04/522、04/539、04/2299、04/109在出苗率、茎径、有效茎、产蔗量及含糖量方面均明显超过CK。其中04/539耐低氮胁迫能力较强，产蔗量及含糖量分别为104.81 t/hm2、15.04 t/hm2，比CK增加17.46%和15.04%。低氮胁迫对各参试甘蔗品系的分蘖率、蔗茎伸长有明显的不利影响。试验结果可为进一步筛选固氮甘蔗优良品种提供参考。

关键词: 垂直分布, 垂直分布

Abstract:

The aim was to know the manifestations of different sugarcane genotypes in low nitrogen stress. ROC22 was used as control in the comparative planting experiment, and six Guitang strains from seeding in 2004 were studied. The results indicated that germination rate, stalk diameter, millable stalks, the cane yield and sucrose content of 04/1028, 04/1531, 04/522, 04/539, 04/2299 and 04/109 were higher than those of CK. The ability of Guitang 04/539 in low nitrogen stress was strongest. Its cane yield and sucrose contents were 104.81 t/hm2 and 15.04 t/hm2, which increased 17.46% and 15.04%, respectively, compared with CK. The tillering rate and internode elongation of the sugarcane strains were influenced badly by low nitrogen stress. The result could be given reference for further nitrogen efficiency sugarcane breeding.