Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Hatching Behaviour of Six Successive Generations of the Pigeon-Pea Cyst Nematode, Heterodera Cajani, in Relation To Growth and Senescence of ...

Hatching Behaviour of Six Successive Generations of the Pigeon-Pea Cyst Nematode, Heterodera... HATCHING BEHAVIOUR OF SIX SUCCESSIVE GENERATIONS OF THE PIGEON-PEA CYST NEMATODE, HETERODERA CAJANI, IN RELATION TO GROWTH AND SENESCENCE OF COWPEA, VIGNA UNG UI C ULA TA BY H. S. GAUR1), R. N. PERRY2) and J. BEANE2) 1) Division of Nematology, Indian Agricultural Research Institute, New Delhi 110012, India and 2) Entomology and Nematology Department, AFRC IACR, Rothamsted Experimental Station, Harpenden, Herts., AL5 2JQ, U.K. Hatching from cysts and eggsacs of six successive generations of Heterodera cajani produced on cowpea during a single growing season in the glasshouse was compared in distilled water, soil leachate and host root diffusate from four week old plants. The majority of eggs in eggsacs hat- ched within 7 days in all treatments and there were no differences between generations. Hatch from cysts in all treatments was similar over the first four generations but the fifth and sixth generations, produced on senescing plants, showed a marked dependency on host root diffusate for hatch. The ratio of eggs in eggsacs to eggs in cysts decreased with each succeeding generation and a comparison between third and sixth generations indicated that, in the older generation, more lipid reserves are partitioned into the encysted J2 than into http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Hatching Behaviour of Six Successive Generations of the Pigeon-Pea Cyst Nematode, Heterodera Cajani, in Relation To Growth and Senescence of ...

Gaur, H.S.; Perry, R.N.; Beane, J.
Nematologica , Volume 38 (1-4): 13 – Jan 1, 1992
Download PDF
13 pages

Loading next page...
 
/lp/brill/hatching-behaviour-of-six-successive-generations-of-the-pigeon-pea-64g6efHmDe

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529292X00162
Publisher site
See Article on Publisher Site

Abstract

HATCHING BEHAVIOUR OF SIX SUCCESSIVE GENERATIONS OF THE PIGEON-PEA CYST NEMATODE, HETERODERA CAJANI, IN RELATION TO GROWTH AND SENESCENCE OF COWPEA, VIGNA UNG UI C ULA TA BY H. S. GAUR1), R. N. PERRY2) and J. BEANE2) 1) Division of Nematology, Indian Agricultural Research Institute, New Delhi 110012, India and 2) Entomology and Nematology Department, AFRC IACR, Rothamsted Experimental Station, Harpenden, Herts., AL5 2JQ, U.K. Hatching from cysts and eggsacs of six successive generations of Heterodera cajani produced on cowpea during a single growing season in the glasshouse was compared in distilled water, soil leachate and host root diffusate from four week old plants. The majority of eggs in eggsacs hat- ched within 7 days in all treatments and there were no differences between generations. Hatch from cysts in all treatments was similar over the first four generations but the fifth and sixth generations, produced on senescing plants, showed a marked dependency on host root diffusate for hatch. The ratio of eggs in eggsacs to eggs in cysts decreased with each succeeding generation and a comparison between third and sixth generations indicated that, in the older generation, more lipid reserves are partitioned into the encysted J2 than into

Journal

Nematologica – Brill

Published: Jan 1, 1992

Keywords: hatching; lipid reserves; eggsac; cyst

There are no references for this article.