Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Influence of Feeding Duration On Moulting and Sex Determination of Meloidogyne Incognita

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Nematologica
For more content, see Nematology.

Second stage Meloidogyne incognita larvae of different sizes were dissected from plant roots and placed in water agar to observe their development. The same population was tested in 1968 and again in 1970. Larvae that had fed for less than 9 days at 22° C were unable to moult, but depending on how long they had fed, older larvae moulted to the third, fourth or fifth stage. Larvae moulted to the third stage at approximately the same age irrespective of feeding duration. Most larvae dissected from roots 10, 11 or 12 days after inoculation in 1968 became male, whereas older larvae became female. There was a strong correlation between mean width of larvae at the time of dissection and their subsequent development. The same population retested in 1970, gave different results. Fully fed second stage larvae were smaller than in 1968 and sex was no longer labile. Larvae that had fed for more than 10 days were female, if they became sexually differentiated at all. As the population had been kept in isolation and was morphologically unchanged, the change in behaviour of the population was probably caused by selection between tests of a line able to become female in poor environmental conditions.

Affiliations: 1: Rothamsted Experimental Station, Harpenden, Herts., England

Loading

Full text loading...

/content/journals/10.1163/187529272x00089
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/187529272x00089
Loading

Article metrics loading...

/content/journals/10.1163/187529272x00089
1972-01-01
2016-12-06

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Nematologica — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation