Study the effects of different irrigation regimes and foliar application of fruit set on increment of perfect flowers and productivity of olive (Olea europaea L. cv." Shenge")
Subject Areas : Journal of Plant Ecophysiology
MOHAMMAD SAEED TADAYON
1
,
gholamreza moafpourian
2
1 - استادیار بخش تحقیقات خاک و آب، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، شیراز، ایران
2 - member of scientific board in agricultural and natural resource research center
Keywords: Quality, Yield, Olive, Perfect flower percentage,
Abstract :
Shenge (Olea europaea L) has unsuitable production in warm and dry regions. In this experiment the effect of nutritional factors on the increment of perfect flowers, and different irrigation regime on olive yield were investigated. Experiment was conducted in a randomized complete block design with three replication and 6 treatments contained - Irrigation at norm (drip irrigation based on 50 percent of allowable depletion) (I100), - Irrigation with 75 percent allowable depletion one month before and after flowering (I125), - treatment number two + continuing the irrigation with norm one month after harvest(I125+I100), 4- treatment number one + fruit set foliar application of two percent urea + zinc chelate(0.2%) and boric acid(0.2%) two weeks before and four weeks after flowering(I100+FS), - treatment number two + fruit set foliar application (I125+FS), - treatment number three + fruit set foliar application(I125+I100+FS). Results showed that I125+I100+FS and I125+FS had high significant effects on shoot fruitfulness ratio increment that indicate the number of perfect flower to total flower on the same branch. Also the highest fruit set belong to these treatments and the highest water use efficiency and leaf nitrogen concentration obtained by I100+FS. I125+I100+FS and I125+FS caused an increment in fruit water percentage, fruit oil percentage, fruit pulp to stone weight ratio and finally fruit yield and consequently oil yield and could be recommended especially in warm and dry regions.
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