Teleki 8 B

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The Teleki 8 B is a rootstock by the intersection of American Vitis - species Vitis riparia and Vitis berlandieri has arisen and as a rootstock for biotechnical fighting the root phylloxera for phylloxera-susceptible varieties ( Vitis vinifera is used).

origin

In 1896, the Hungarian winery owner Sigmund Teleki in Villány obtained about 10 kg of seeds of the wild grape Vitis berlandieri from the French nursery specialist Euryale Rességuier. Because of the special quarantine regulations at the time, traffic with green or woody parts of the vine was prohibited because of the possibility of the further spread of phylloxera ( Daktulosphaira vitifoliae, syn. Viteus vitifoliae ), so Teleki obtained grape seeds . He planted the seedlings of the approximately 40,000 kernels in his test fields. He then divided the different populations into three different groups and further divided them into series.

The first group included pure Berlandieri types with the sub-series 1, 2 and 3. He soon rejected these because of their insufficient rooting. In the second and largest group he put the Berlandieri x Riparia types together with the sub-series 4, 5, 6, 7, 8 and 9. This group seemed to him the most promising for further breeding work. The third group was made up of Berlandieri x Rupestris types with only one sub-series 10. He did not consider this to be of any further interest because of its poor suitability for the Hungarian climate.

Teleki then divided his extensive and for him most promising Berlandieri x Riparia populations into two main groups and three subgroups each according to their phenotype . Phenotype group Riparia with subgroups 4, 5, 6 and the group Phenotype Berlandieri with subgroups 7, 8, 9. For further differentiation by means of ampelographic features, he added the letter identifiers A and B to the respective subgroup numbers. He used the letter A to identify types with smooth shoots, the letter B for hairy shoots. Plants in group 8 B had hairy shoots and leaf shapes that were more likely to be assigned to Berlandieri types. Plants in group 5 A, on the other hand, had smooth shoots and leaves that were more like Riparia.

In 1902 it fell particularly two groups because of their vigor, early maturity of the wood, higher lime tolerance and good affinity with the scion promise to: 8 B and Teleki 5C . Teleki soon put both series on the market. He passed on several breeding lines of each type - often even mixed - so that several selections arose from this. With 8 B there were even five different ones, which is why the various selections can also differ in their properties.

Ampelographic features

  • Shoot tip: half-open to open, whitish green with a slightly reddish-brown hint, carmine-red edged, downy-woolly and hairy with bristles.
  • Young leaves: brownish-green glossy, heavily cobweby on top, densely bristly and downy, woolly hairy on the underside.
  • Full-grown leaf: stocky, wedge-shaped with short obtuse-angled lateral lobes, wide teeth of the leaf margin, surface slightly blistered, petiole V-shaped, leaf veins bristly below, leaf stalk bristly.
  • Drive axis: internodes with velvety bristles, ripe wood, hazelnut-colored to dark brown.
  • Tendrils: three-part.
  • Flower: male to pseudo-hermaphrodite.

properties

The Teleki 8 B rootstock is tolerant of the root aphid. The Teleki 8 B gives the noble rice a medium to strong growth power depending on the soil fertility. The rootstock has good rooting capacity with half-deep to deep roots. This results in a good drought tolerance. It can withstand high levels of lime on dry and warm soils. The active lime tolerance goes up to 22%. On very heavy soils, growth is delayed in the first few years. The end of vegetation is medium late. The rootstock has a good to medium affinity for most of the premium rice varieties grown in Germany. Incompatibilities could not be observed with the clones registered in Germany . Its good resistance to chlorosis , drought tolerance and higher vigor compared to selection Oppenheim 4SO4 make it currently one of the best supports for heavy soils. Nevertheless, it is hardly used in German viticulture . However, your drought tolerance could be increasingly important.

Synonyms

literature

  • Joachim Schmid, Frank Manty, Bettina Lindner: Geisenheimer grape varieties and clones (= Geisenheimer reports. 67). Geisenheim University - Institute for Vine Breeding, Geisenheim 3rd edition 2019, ISBN 978-3-934742-56-7 .

Individual proof

  1. ↑ documents. Retrieved August 16, 2019 .
  2. ↑ Download BSL in PDF format. Retrieved August 16, 2019 .
  3. ↑ Teleki 8 B. In: Geisenheimer grape varieties and clones. www.hs-geisenheim.de, accessed on August 16, 2019 .