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Shoot and Root Growth of Rice (Oryza sativa) in Response to V-10029

机译：水稻对V-10029的芽生和根系生长

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摘要

Greenhouse studies were initiated in 2001 to evaluate the effect of V-10029 applications on shoot and root growth of rice cultivars. V-10029 applications did not affect the shoot and root weight or shoot-root ratio of Cocodrie. Tolerance of Bengal was less than that of Cocodrie and was growth stage dependent. V-10029 treatments at the one- to two-leaf rice growth stage reduced shoot growth but had no effect on root, resulting in a lower shoot-root ratio compared with that of the nontreated 1 wk after treatment (WAT). At 2 and 3 WAT, both shoot and root growth were reduced by V-10029, with shoot-root ratio being greater than that of the nontreated, indicating a greater inhibition of roots than of shoots. V-10029 treatments at the two- to three-leaf rice growth stage reduced both shoot and root growth of Bengal across all three sampling dates. V-10029 treatments at the three- to four-leaf rice growth stage did not affect shoot growth but reduced root growth 2 and 3 WAT with no difference in shoot-root ratio. There was no difference in shoot and root weight or shoot-root ratio between the propanil comparison treatment and the nontreated. These results indicate that rice cultivars may differ in their tolerance to V-10029 and tolerance may be growth stage dependent.
机译：温室研究于2001年启动，以评估V-10029施用对水稻品种芽和根生长的影响。 V-10029的施用不会影响Cocodrie的枝条和根重或枝根比。孟加拉的耐受性小于Cocodrie，并且取决于生长阶段。在单叶或两叶水稻生长期的V-10029处理降低了芽的生长，但对根没有影响，与未处理的1周后（WAT）相比，芽根的比率较低。在第2和第3个WAT时，V-10029降低了芽和根的生长，其芽根比大于未处理的根，这表明对芽的抑制作用要大于对芽的抑制作用。在两叶到三叶水稻生长期的V-10029处理在所有三个采样日期都减少了孟加拉的枝条和根部生长。在三叶到四叶水稻生长期的V-10029处理不影响芽生长，但降低了根生长2和3 WAT，茎根比没有差异。丙烷比较处理与未处理之间的枝条和根重或枝根比没有差异。这些结果表明，水稻品种对V-10029的耐受性可能不同，并且耐受性可能取决于生长阶段。

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  • 来源
    《Weed technology》 |2003年第4期|p.768-772|共5页
  • 作者

    WEI ZHANG; ERIC P. WEBSTER;

  • 作者单位

    Department of Agronomy, Louisiana State University AgCenter, Baton Rouge, LA 70803;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物保护;
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