Majid Esmaeilizade; Ali Reza Talaie; Hossein Lesani; Amanollah Javanshah; Hossein Hokmabadi
Abstract
In order to prevent of inflorescence bud abscission and reduce of alternate bearing in pistachio cv. ‘Ohadi’ an experiment with 12 treatments including of girdling, fruit thinning, application of urea (0.5%), sucrose (3 and 5%) and their combination with urea, zinc sulfate (0.05 and 0.1% of pure ...
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In order to prevent of inflorescence bud abscission and reduce of alternate bearing in pistachio cv. ‘Ohadi’ an experiment with 12 treatments including of girdling, fruit thinning, application of urea (0.5%), sucrose (3 and 5%) and their combination with urea, zinc sulfate (0.05 and 0.1% of pure zinc) and also their combination with urea in 3 replication and during 2 stages, was conducted in 2007 and 2008. The treatments were applied in two different stages of fruit growth and development including: 1- Initiation of rapid growth of nut endosperm and 2- Endosperm completion and initiation of rapid nut embryo growth. The results showed that girdling reduced inflorescence bud abscission, leaf chlorophyll content and photosynthesis rate significantly, but it didn't have any effect on qualitative and quantitative nut characteristics. The other treatments increased kernel weight and nut dehiscent and reduced ounce (No. of nuts per ounce), blankness, nut deformity and inflorescence bud abscission, but they didn't have any effect on early splitting. With the exception of zinc sulfate treatments, the others increased leaf chlorophyll content, meanwhile sucrose or combination of sucrose with urea reduced photosynthesis rate, but the other treatments increased it.
Mahdiyeh Siahkoohi; Majid Rahemi; Amanollah Javanshah
Abstract
Abstract
The present research was conducted in a commercial orchard of pistachio during 2006-2007 in Rafsanjan, Iran. Gibberellic acid (GA3) were applied at 0, 25, 50 and 75 mgL-1 and at three time of spray (the first of June, July and August) on “Ahmad-aghai” pistachio cultivar. Two branches of ...
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Abstract
The present research was conducted in a commercial orchard of pistachio during 2006-2007 in Rafsanjan, Iran. Gibberellic acid (GA3) were applied at 0, 25, 50 and 75 mgL-1 and at three time of spray (the first of June, July and August) on “Ahmad-aghai” pistachio cultivar. Two branches of each tree was sprayed during two years of study. Spraying at June had least of early splitting. GA3 at 50 and 75 mgL-1 significantly reduced early splitting and cracking. Time of application had no significant effect on in dehiscent of pistachio nut. Percentage of indehiscent pistachio nut was increased by increasing the concentration of GA3. Spraying in August increased fat and protein content of kernel of pistachio nut. Treatments of GA3 had no significant effect on fat and protein content of kernel. GA3 was increased chlorophyll content of kernel of pistachio nut at 75 mgL-1.
Key words: “Ahmad-aghai”, Indehiscent pistachio, Protein content of kernel, Chlorophyll content of kernel
