Influence of Grapevine leafroll associated virus-Z on the growth and development of the grapevine (Vitis vinifera L.) in conditions of in vitro cultivation

摘要

In 2014/2015 in IVE-Pleven was conducted a comparative study to determine the impact of Grapevine leafroll virus-3 on some indicators of growth and development of the vine. The presence of GLRaV-3 was proven by DAS-ELISA protocol. Biometric measurementswere made of vine in vitro plants of variety Chardonnay.The results showed significant differences between the average values of indicators: number of roots, number of internodes, shoot length, total length of roots, shoot weight and root weight. The differences were in favor of variants with healthy plants.Despite the lack of visible symptoms of the disease in terms of in vitro cultivation, the results demonstrate the impact of the virus on the growth and development of the vines of Chardonnay.