ISHS Acta Horticulturae 367: VI International Symposium on Pear Growing
INFLUENCE OF SOURCES OF ZINC ON GROWTH AND NUTRIENT STATUS OF SAND PEAR (PYRUS PYRIFOLIA (BURM) NAKAI) |
| Authors: | A.S. Sandhu, K. Singh, S.S. Mann, G.P.S. Grewal |
| Abstract:
Investigations on the influence of foliar and soil application of zinc sulphate on growth and nutrient status of own-rooted sand pear (Pyrus pyrifolia (Burm) Nakai) were carried out in the New Orchard of the Department of Horticulture, Punjab Agricultural University, Ludhiana. The shoot length and internodal length were maximum with 1500 g zinc sulphate as compared to all other soil and foliar applications. However, the shoot diameter was more with 500 g zinc sulphate. The leaf size also increased under all the zinc sulphate applications as compared to control (the maximum being with 0.6% spray of zinc sulphate). Highest increase in chlorophyll content was recorded with highest dose of zinc sulphate (soil application). There was an increase in the nitrogen and potassium status of zinc treated trees but no definite trend was observed in phosphorus level. Both the sources increased the level of zinc in the foliage. However, the maximum increase was observed with 0.6% zinc sulphate spray. The foliar spray proved better in enhancing the zinc status of pear trees. There was also an increase in Fe, Mn and Cu content of foliage after the application of zinc sulphate either through soil or foliar application. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
