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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2007 , Volume 17 , Number 1; Page(s) 31 To 37.
 
Paper: 

EFFECT OF TRAINING SYSTEM AND RATE OF PRUNING ON YIELD AND QUALITY OF PEACH FRUIT

 
 
Author(s):  HASANI GH.*, REZAEI R.
 
* RESEARCH CENTER OF AGRICULTURE AND NATURAL RESOURCES OF WEST AZARBAIJAN, ORUMIYEH, IRAN
 
Abstract: 

In order to study the effects of training system (number of main limb) and bearing pruning (severity of pruning) on yield and quality of peach fruit, an experimental design was carried out as factorial combination of three factores including, two peach cultivar (Anjiri and Mahalli), three number of limbs (3,4, and 5 limbs), and three severity of pruning (1/2, 1/3, and 1/4 cutting back of bearing shoots) based on randomized complete blocks with three replications. Results indicated that effect of year on yield per tree and per hectare was highly significant (p£0.01). Effect of cultivar was only significant on fruit weight and canopy extention rate. Fruits obtained from the local cultivar (mahalli) with average weight of 107.79 gr was heavier compared to the Anjiri cultivar (71.20 gr), but total soluble solids( TSS) of Anjiri (%19.28) was higher than local cultivar (%16.28). Effect of severity of pruning on weight of fruits, TSS and length of shoots was significant (p£0.01).The highest rate of TSS (%18.70), fruit weight (96.97 gr), and vegetative growth (68.06 cm) was obtained from more severe pruning. Effect of limb number was significant on all of traits except for TSS and shoot growth. The best quality fruit was obtained with the lowest number of limbs. The highest fruit weight (116.07gr) and vegetative growth of shoots was obtained from the local cuttivar in 1/2 severity pruning. The highest TSS was observed in Anjiri cultivar for both years. In conclusion, we recommend a relatively heavy pruning for both regulation of productivity and better fruit quality.

 
Keyword(s): PEACH FRUIT, PRUNING, QUALITY, TRAINING, YIELD
 
References: 
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