Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An abnormal development in the taproots of some plants, especially sugar beet, characterized by fine, hairy secondary roots; it is caused by the infection of the plant with a virus transmitted by a protozoan.

from The Century Dictionary and Cyclopedia

  • n. In botany, an abnormal development of adventitious roots peculiar to many plants, as ivy, screw-pines, and figs, which send out roots from various parts, just as trees produce adventitious buds.

Etymologies

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Examples

  • Almost immediately after that the Quenton Park estate's crop of sugar beet, almost a thousand acres in total, had been hit by rhizomania, the mad root disease.

    The Seventh Scroll

  • All of them have rhizomania tolerance, while two are also tolerant to beet cyst nematode

    FWi - All News

  • Rosalinda combines rhizomania tolerance with a nine rating for powdery mildew resistance and the highest RL score for rust resistance.

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  • Part of the problem is that rhizomania-resistant varieties don't always offer enough to the grower, he explains.

    FWi - All News

  • Even so, experts believe that a great deal of rhizomania is still going undetected, resulting in further spread of the virus and damage to both yield and income.

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  • Aimanta is an early-maturing rhizomania resistant variety, he claims.

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  • Syngenta, there are huge regional differences in the uptake of resistant varieties, with growers in East Anglia leading the way with almost 60% of the sugar beet area down to rhizomania-resistant types.

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  • Elsoms believes many more growers should be switching to rhizomania-resistant varieties to help prevent inoculum building up and reaching levels which could threaten resistance.

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  • KWS has introduced multi-resistance to both beet cyst nematode and rhizomania in a variety.

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  • He said those producers will probably stick with conventional beets until the rhizomania problem is worked out in the Roundup Ready varieties.

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