Effect of some nutrients pre-harvest spray on growth and flowering in Alestromeria cv. fuji
In order to study the effect of foliar application of iron nanochelate, potassium nano-chelate, zinc nano-chelate and calcium nano-chelate on Alstromeria flower, a completely randomized design with 13 treatments, 3 replicates and each replicate containing 5 plants and a total of 195 pots was conducted. Treatments included iron nano-chelate, potassium nano-chelate, zinc nano-chelate and calcium nano-chelate each with three levels of 10, 20, 40 mg/L and pot without spraying as control. Foliar application was carried out three Times in ten day in same base. Quantitative and qualitative traits of the plant such as fresh and dry weight of flower, anthocyanin of petals, total leaf chlorophyll, iron, potassium, zinc and calcium content of leaves and longevity of flower per plant, one week after the last foliar application that is, when one or two flower were opened on the cluster, was evaluated. The results showed that the treatment of iron nano-chelate 40 mg/L had the greatest effect on the evaluation of traits such as fresh and dry weight of flower, anthocyanin of petals, total chlorophyll of leaves, iron content of leaf and longevity of flower on plant, and treatment with calcium nano-chealte 40 mg/L had the greatest effect on the improvement of calcium content leaf and potassium nanochelate 40 mg/L had the greatest effect on potassium content of leaf and zinc nano-chelate at 40 mg/L improve the attribute on zinc content of leaf. Also, Nano Ch Ca 40ppm treatment with 15.9 days was highest and control treatment with 9.2 days had the lowest flower longevity per plant. The results showed that the most of traits were statistically significant at 1% level and anthocyanin of petals and total chlorophyll of leaves at 5% level. Therefore, according to the results of this study, it can be stated that pretreatment of iron nano-chelate, potassium nanochelate, zinc nano-chelate and calcium nano-chelate improved morphological, physiological, enzyme and longevity of flowers on the plant in Alstroemeria spp . cv. Fuji.
Alestromeria , Zinc , Iron , Potassium , Calcium
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