| 41. | Only the discovery of phylloxera-resistant rootstocks enabled the wine business to survive.
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| 42. | Carrizo is becoming a popular rootstock for citrus,
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| 43. | He grafted merlot and sauvignon blanc and chardonnay vines on to the old rootstocks.
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| 44. | Other small-fruited species are frequently used as rootstocks for the cultivated forms.
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| 45. | Note that nearly all the apple rootstocks in the industry are now virus free.
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| 46. | Another desirable characteristic of rootstocks is environmental adaptability.
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| 47. | The Mark rootstock was such a stock and has now fallen mostly into disfavor.
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| 48. | Some of these hazards can be managed with integrated pest management and rootstock selection.
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| 49. | The leaves, often densely covered in trichomes, spring directly from the rootstocks.
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| 50. | Because of this most of the vineyards in Argentina are planted on ungrafted rootstock.
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