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Breeding for resistance toHeteroderain white clover

โœ Scribed by J. Dijkstra

Publisher
Springer
Year
1971
Tongue
English
Weight
554 KB
Volume
20
Category
Article
ISSN
0014-2336

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โœฆ Synopsis

White clover resistant to cyst nematodes was selected as a contribution to the study of the importance of cyst nematodes in the disappearance of white clover from grassland. Resistance was obtained from different sources viz from clones of the Foundation for Agricultural Plant Breeding selected for persistence, from New Zealand white clover, from the Swedish variety Kiwi and from the Italian variety Lodigiano. Inheritance was found to be most likely determined by more than one gene.

The results of tests with three clover populations and seven Dutch sources of nematodes did not show clear differences in biotypes among the eelworms. Biotypes Will not so easily appear as with organisms reproducing sexually because reproduction is practically only mitotic parthenogenetic.

Resistance to cyst nematodes was not correlated with high glucoside contents.

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โœ J. Dijkstra ๐Ÿ“‚ Article ๐Ÿ“… 1956 ๐Ÿ› Springer ๐ŸŒ English โš– 720 KB

In the Netherlands, like in many other countries of the temperate regions, locally red clover is frequently attacked by the stem eelworm Ditylenchus dipsaci (KOHN) FILIPJEV . Farmers practise ample crop rotation to avoid damage, but it gives no adequate control of the disease . Figures 1 and2 show r