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American Journal of Plant Nutrition and Fertilization Technology
  Year: 2012 | Volume: 2 | Issue: 2 | Page No.: 32-44
DOI: 10.3923/ajpnft.2012.32.44
 
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Effect of Different Forms and Levels of Nitrogen on Vegetative Growth and Leaf Nutrient Status of Nursery Seedling Rootstocks of Peach

Mitra Mirabdulbaghi and Marjan Pishbeen

Abstract:
A field experiment was carried out in nursery of Seed and Plant Institute of Karaj (Iran) to determine the effect of various forms and levels of nitrogen application on vegetative growth and leaf nutrient status of two peach seedling rootstocks (Missouri and Yazdi). The study was carried out in two experimental years, 2009 and 2010. Seedlings were planted per plot at the end of January 2009. In addition, Dixiered cultivar as scion was grafted on studied seedlings rootstocks at the end of August 2009, respectively. For each experimental year, soil application of nitrogen fertilizers were added once at the beginning of April and repeated every 14 days. Each treatment was replied 7 times. The results of first experimental year (2009) showed that the application of 600 kg sulfate ammonium ha-1 had highest dry weight of shoot and root production and leaf N concentration of Missouri and Yazdi seedling rootstocks. However, the result of second experimental year (2010) showed that the application of 200 kg sulfate ammonium ha-1 for Missouri and Yazdi rootstocks with Dixiered as peach scion cultivar showed highest shoot length, shoot diameter and leaf surface. Furthermore, The DOP and to ΣDOP index were estimated for the diagnosis of the leaf mineral status of the trees. According to ΣDOP index (for 2009+2010), application of 400 kg sulfate ammonium ha-1 for Missouri rootstock with Dixiered as peach scion cultivar showed better balanced nutritional values, the weakest balanced nutritional values belonged to the Yazdi rootstock (with Dixiered as peach scion cultivar) by application of 600 kg urea ha-1.
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How to cite this article:

Mitra Mirabdulbaghi and Marjan Pishbeen, 2012. Effect of Different Forms and Levels of Nitrogen on Vegetative Growth and Leaf Nutrient Status of Nursery Seedling Rootstocks of Peach. American Journal of Plant Nutrition and Fertilization Technology, 2: 32-44.

DOI: 10.3923/ajpnft.2012.32.44

URL: https://scialert.net/abstract/?doi=ajpnft.2012.32.44

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