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| Ruess, Franz. |
| 125 scab-resistant or scab-tolerant apple varieties are currently being tested concerning their suitabiltity lor commerciai apple production at the research-station in Heuchlingen, Southern Germany. Apart Irom the scab-resistant apple varielies .Topaz' and .GoldRush' which are already used lor ecological apple production lurther varieties also seem lo be suitable. The aim 01 Ihe study was lo lind suilable scab-resistanl subslitutes lor not scab-resistanl standard apple-varielies lor ali periods 01 harvest. A 101 01 new apple-varieties seem lo be goOO lor convenlional production according lo their high levels 01 vitamin C. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2002 |
URL: http://orgprints.org/14589/1/2_ruess_11.pdf |
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| Ruess, Franz. |
| Fireblight (Erwinia amylovora) was detected on rootstocks in several apple orchards in Baden-Württemberg. In Germany the mostly used rootstocks on apple ‘M9’ and ‘M26’ are known to be susceptible to fire blight. Therefore the LVWO Weinsberg participated in the “European Cornell-Geneva rootstocks trial” which is a common experiment of seven research institutes over whole Europe. Six fire blight resistant or tolerant rootstocks from the Geneva® breeding program were tested in comparison to ‘M9’ (Type T337 and Pajam 2). The variety was ‘Golden Delicious’ and the trees were planted in 2001 . An outstanding new rootstock was ‘Geneva® 11’. The tree size was similar to ‘M9’ (above 7% more growth in comparison to ‘T337’). Besides that the influence on the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/13855/1/ecofruit_12th_28.pdf |
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| Ruess, Franz. |
| 12 year old apple-trees 01 the varieties "Elstar" and "Jonagold" were treated with different root pruning techniques. Furthermore, the different root pruning varieties were combined with dillerenl cutting-techniques 01 the crown and different thinning measures 01 the Iruiting wood. It could be shown, that root pruning results in a decrease 01 yield depending 01 the distance to the treetrunk. However, the decrease in yield is compensated by better quality 01 lruit concerning lruit-size, Iruit-colouring, sugar-content and ability 01 storage. As a consequence 01 root pruning alternate bearing 01 Irees is stopped. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2002 |
URL: http://orgprints.org/14629/1/ruess_204.pdf |
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| Ruess, Franz. |
| ‘Topaz’ was the mostly planted apple variety with scab resistance in the recent years. It took only a few years for this variety to get that importance in organic orchards. New apple varieties always should be tested on different rootstocks, because there is an individual relationship between varieties and rootstocks. The apple varieties ‘Topaz’, ‘Rubinola’ and ‘Rosana’ were tested on the rootstocks ‘M 26’,‘M 9’, ‘JOHA’, ‘P 22’ and ‘M 27’. ‘Topaz’ showed the best results concerning yield and fruit size on ‘M 9’. ‘Rubinola’ which is a strongly growing variety was better on the rootstock ‘JOHA’. The decision which rootstock is the best also depends on soil and water conditions. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Fruit and berries. |
| Ano: 2004 |
URL: http://orgprints.org/14528/1/27_Ruess_144_149.pdf |
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| Ruess, Franz. |
| Fireblight (Erwinia amylovora) was detected on rootstocks in several apple orchards in Baden-Württemberg. In Germany the mostly used rootstocks on apple ‘M9’ and ‘M26’ are known to be susceptible to fire blight. Therefore the LVWO Weinsberg participated in the “European Cornell-Geneva rootstocks trial” which is a common experiment of seven research institutes over whole Europe. Six fire blight resistant or tolerant root-stocks from the Geneva® breeding program were tested in comparison to ‘M9’ (Type T337 and Pajam 2). The variety was ‘Golden Delicious’ and the trees were planted in 2001 . An outstanding new rootstock was ‘Geneva® 11’. The tree size was similar to ‘M9’ (above 7% more growth in comparison to ‘T337’). Besides that the influence on the fruit... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation Fruit and berries. |
| Ano: 2006 |
URL: http://orgprints.org/8930/1/ecofruit_12th_28.pdf |
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