科研之友
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摘要
The present study was conducted to determine the effects of different indole butyric acid concentrations (IBA, 0, 1000 and 2000 ppm) on root development and mineral uptake of cuttings of three different grapevine cultivars (Redglobe, Sultani and Superyol) and 41-b rootstock over soils with three different pH levels (5, 7 and 8). A pot experiment was conducted in a completely randomized block design with 3 replications. Cuttings were planted in pots and 150 mg kg(-1) N, 50 mg kg(-1) P and 100 mg kg(-1) K were supplied to each pot to support the growth of saplings. Fresh and dry root and leaf weights were measured and leaf nitrogen, phosphorus and potassium contents were analyzed. Compared to control (0 ppm IBA) treatment, significant increases were observed in root and leaf weights with increasing IBA concentrations. Increased N, P and K uptakes were also observed at 1000 and 2000 ppm IBA treatments. The results clearly demonstrated that IBA treatments improved biomass and mineral uptake of grapevine cuttings.
- 出版日期2018
