A.V. Zhuravleva
Siberian Research Institute of Agriculture, prosp. Korolyova, 26, Omsk, 644012, Russian Federation
Summary. In the garden of the Siberian Research Institute of Agriculture, located in the southern forest-steppe of Omsk region, the investigations were carried out in 2014-2015 in order to identify valuable forms of clonal stocks of apple trees for future use in the production. The soil of the experimental plot is meadow-chernozem, middle-loamy with expressed sand fraction. The reaction of the soil solution in the arable layer is close to neutral one. The object of research is clonal apple rootstocks 54-118 and 62-396. The rooting was carried out in a greenhouse with film cover with artificial misting plant. The substrate is a mixture of sand and peat (1:1). The scheme of cutting planting is 5 x 5 cm. The replication of the experiment is fourfold; the number of cuttings in every replication is 25 pcs. The arrangement is randomized. Kornevin was used as a rooting regulator (powdering of cuts). The samples of clonal rootstocks of apple tree wintered without damage. There were not losses of plants in the test. In 2014 the vegetation started on April 29-30, in 2015–on May 1-2. The height of 52-118 stools at the end of the vegetation on the average for the years of the research was 136 сm, of 62-396 rootstocks–72.5 cm. The number of shoots per plant at the clonal rootstock 54-118 on the average is 9.1 pcs, at the 62-396 rootstock–11.6 pcs; their length is 41.9 and 36 cm, respectively. Callus formation was observed in 8-12 days after planting, the mass formation of roots–in 3-4 weeks. We did not observe plentiful rotting of cuttings over the years of the study, the majority of nonrooted cuttings were with callus. Over the years of the research the rooting ability of the clonal apple rootstock 54-118 ranged from 60 to 98%, of the 62-396 rootstock–from 32 to 84%. On average, the growth of 54-118 was 7.8 cm, of 62-396–4.5сm. The rooted stock cuttings of apple tree require growing.
Keywords: reproduction, clonal rootstocks, apple tree, green cuttings, rooting ability.
Author Details: A.V. Zhuravleva, Cand. Sc. (Agr.), senior research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Zhuravleva A.V. Propagation of Clonal Stocks of Apple Trees by Green Cuttings. Dostizheniya nauki i tekhniki APK. 2015. Vol. 29. No. 10. Pp. 47-48 (In Russ)