Effects of Phenylphthalamic Acid and Perfect Fertilizer on Vegetative and Reproductive Growth of Ornamental Pepper (Capsicum annuum L.)

Journal of Ornamental Plants

مقاله 1، دوره 8، شماره 4، بهمن 2018، صفحه 217-226   

نوع مقاله: Research Paper

نویسندگان

Samane Zahiri Barsari¹؛ Davood Hashemabadi^{* 2}؛ Fatemeh Zaredost¹

¹Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran

²Department of Horticulture, Rasht Branch, Islamic Azad University, Rasht, Iran

چکیده

The impact of phenylphthalamic acid (PPA) rates including 0 (PPA₀), 1000 (PPA₁₀₀₀), 2000 (PPA₂₀₀₀) or 3000 (PPA₃₀₀₀) mg L^-1 and perfect fertilizer rates including 0 (PF₀), 100 (PF₁₀₀), 200 (PF₂₀₀) and 300 (PF₃₀₀) mg L^-1 was studied on vegetative and reproductive growth of ornamental pepper plants. To realize this, a factorial experiment was conducted in a Completely Randomized Design with three replications. It was found that the interaction between ‘PPA × PF’ improved the measured traits; so that the shortest time to flower initiation (55.40 day), the shortest time to fruit set (62.93 day) and the highest fruit number (98.12 fruit) were related to the application of ‘PPA₂₀₀₀ × PF₂₀₀’. Plants treated with ‘PPA₂₀₀₀ × PF₃₀₀’ exhibited the most number of flowers (117.36), number of flowering stems (7.4), diameter of flowering stem (3.7 mm), plant height (45.83 cm), fruit fresh weight (6.71 g), fruit dry weight (3.79 g), plant fresh weight (21.96 g) and plant dry weight (15.17 g). Also, this treatment exhibited the highest fruit anthocyanin content and total chlorophyll. Conclusively, the application of ‘PPA₂₀₀₀×PF₂₀₀’ is recommended because of the lower consumption of perfect fertilizer and the greater effect on traits having a beautiful and economic value for ornamental peppers.

کلیدواژه‌ها

Flowering؛ Fruit bearing؛ Phenylphthalamate؛ Pollination

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