English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In recent years, the continuous use of herbicides effective against annual weeds has caused the spread of perennial weeds such as Sagittayia pygmaea MIQ., Cyperus serotinus RoTTB. and Sagittayia tyifolia L. in paddy fields in Japan. Various herbicides more effective against a wide spectrum of weeds are required. In order to avoid the undesirable succession of weeds, the development of new herbicides effective for a wide spectrum of weeds has been promoted. Through the efforts, the herbicide naproanilide was developed to control perennial weeds in paddy fields. Field and greenhouse studies by Takasawal' showed that naproanilide was effective to selectively control broad-leaf and cyperaceus weeds by both pre-and post-emergence treatments in rice fields. Takasawa et al. 2 also showed that naproanilide fey se. had no phytotoxicity but was activated through its conversion to 2-(2-naphthoxy)propionic acid (NOP). Furthermore, they reported that the selective herbicidal activity of NOP was similar to that of naproanilide. Oyamada and Kuwatsuka3) also studied the absorption, translocation and metabolism of 14C-naproanilide in rice seedlings. 14C-Naproanilide was absorbed through the root, but it was hardly translocated to the upper part. Studying the selectivity mechanism of naproanilide, Kobayashi et al.4,5) found that naproanilide remarkably stimulated RNA synthesis in Cyperus difformis L. (a susceptible species), and suggested that the disturbance of RNA metabolism might induce the observed abnormal growth and subsequent suppression of plant growth. On the other hand, RNA synthesis in rice plants (a tolerant species) was hardly stimulated. The objectives of this study are to define the selectivity of naproanilide in tolerant rice plants and some susceptible plants, and to * Portions of this paper were presented at the

nippon nōyaku gakkaishi

Selectivity and Absorption of the Herbicide Naproanilide in Rice Plants (&lt;i&gt;Oryza satiua&lt;/i&gt; L.) and &lt;i&gt;Sagittaria pygmaea&lt;/i&gt; MIQ.