Observations On the Desiccation Survival of Second Stage Juveniles of the Rice Cyst Nematodes, Heterodera Sacchari, H. Oryzae and H. Oryzicola

Observations On the Desiccation Survival of Second Stage Juveniles of the Rice Cyst Nematodes,... OBSERVATIONS ON THE DESICCATION SURVIVAL OF SECOND STAGE JUVENILES OF THE RICE CYST NEMATODES, HETERODERA SACCHARI, H. ORYZAE AND H. ORYZICOLA BY S. K. IBRAHIM and R. N. PERRY Entomology and Nematology Department, AFRC IACR, Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ, UK The effects of different relative humidities (RH) on the survival of second stage juveniles (J2) of Heterodera sacchari, H. oryzae and H. oryzicola were examined. Hatched juveniles were able to withstand desiccation at all humidities tested for minutes only; H. oryzae was slightly better at surviving desiccation than the other two species. J2 were able to survive longer periods of desic- cation inside the egg-shell compared with free J2. An examination of the rate of water loss of hatched H. sacchari and H. oryzicola at different RHs showed that both species were unable to control their rate of drying, especially at low RH, and were dependent on high humidity (98% RH) for slow water loss. The results indicate that these nematodes have no intrinsic ability to control water loss and survive desiccation. Keywords: desiccation survival, water loss, hatching. Rice is traditionally and widely grown in tropical and subtropical regions. In India, Rao & Jayaprakash (1978) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Observations On the Desiccation Survival of Second Stage Juveniles of the Rice Cyst Nematodes, Heterodera Sacchari, H. Oryzae and H. Oryzicola

Nematologica , Volume 38 (1-4): 328 – Jan 1, 1992

Loading next page...
 
/lp/brill/observations-on-the-desiccation-survival-of-second-stage-juveniles-of-50ku0020dI
Publisher
BRILL
Copyright
© 1992 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
D.O.I.
10.1163/187529292X00298
Publisher site
See Article on Publisher Site

Abstract

OBSERVATIONS ON THE DESICCATION SURVIVAL OF SECOND STAGE JUVENILES OF THE RICE CYST NEMATODES, HETERODERA SACCHARI, H. ORYZAE AND H. ORYZICOLA BY S. K. IBRAHIM and R. N. PERRY Entomology and Nematology Department, AFRC IACR, Rothamsted Experimental Station, Harpenden, Herts, AL5 2JQ, UK The effects of different relative humidities (RH) on the survival of second stage juveniles (J2) of Heterodera sacchari, H. oryzae and H. oryzicola were examined. Hatched juveniles were able to withstand desiccation at all humidities tested for minutes only; H. oryzae was slightly better at surviving desiccation than the other two species. J2 were able to survive longer periods of desic- cation inside the egg-shell compared with free J2. An examination of the rate of water loss of hatched H. sacchari and H. oryzicola at different RHs showed that both species were unable to control their rate of drying, especially at low RH, and were dependent on high humidity (98% RH) for slow water loss. The results indicate that these nematodes have no intrinsic ability to control water loss and survive desiccation. Keywords: desiccation survival, water loss, hatching. Rice is traditionally and widely grown in tropical and subtropical regions. In India, Rao & Jayaprakash (1978)

Journal

NematologicaBrill

Published: Jan 1, 1992

Keywords: hatching; water loss; desiccation survival

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off