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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Djarwatiningsih Djarwatiningsih
Universitas Pembangunan Nasional "Veteran" Jawa Timur
Agriculture, Biological Sciences & Forestry Engineering

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Effect of Paclobutrazol Concentration and Urea Fertilizer Dosage on Plant Growth and Yield Long Beans (Vigna sinensis L.) Djarwatiningsih Djarwatiningsih; Agus Sulistyono; Novita Dyah Safitri
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.650-661

Abstract

Long bean is a well-known horticultural commodity in people's lives with quite high nutritional value. This study aims to determine the effect of paclobutrazol concentrations and doses of Urea fertilizer on the growth and yield of long bean plants. Long bean plants were planted on private cultivation land in Werungotok Village, Nganjuk District, Nganjuk Regency, East Java in January 2023 – April 2023. The study was structured using a Split Plot Design with 2 factors, including concentration of paclobutrazol and the dose of Urea fertilizer. Each factor consisted of 4 levels and was repeated 3 times. The results revealed that the concentration of paclobutrazol and the dose of urea fertilizer had an effect on plant length, number of leaves, age of flower emergence, number of flowers, number of fruits, fruit weight per plant, fruit weight per plot, fruit weight per hectare, fruit length and fruit set. The best results were obtained from the treatment with a concentration of 150 ppm paclobutrazol and a dose of 100 kg/ha of urea. Keywords:  Growth,  Paclobutrazol concentration,  Urea dose, Yield.   
The Effect of KNO3 Fertilizer Dosage and Paclobutrazol Concentration on The Growth and Yield of Long Bean (Vigna sinensis L.) Sintha Dayu Aringgani; Djarwatiningsih Djarwatiningsih; Agus Sulistyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.273-282

Abstract

Long bean production has decreased in Indonesia due to uncertain seasonal factors, such as long dry seasons and short rainy seasons. Long bean production has decreased due to inappropriate and optimal cultivation techniques. Several efforts can be made to overcome the problem of decreasing long bean productivity by fertilizing and applying growth regulators. The aim of this research is to understand the combined effect of KNO₃ fertilizer doses and paclobutrazol concentrations on the growth and yield of long bean plants. Thise research was conducted in Ketawang Village, Nganjuk, East Java. The research was a factorial experiment with Split Plot Design consisted of two treatment levels, namely KNO₃ fertilizer dose (0 g/plant, 8 g/plant, 10 g/plant and 12 g/plant) and paclobutrazol concentration (0 ppm, 150 ppm, 175 ppm and 200 ppm). The combination of 10 g/plant KNO₃ + 150 ppm paclobutrazol influences the growth and yield of long bean plants, however the application of KNO₃ fertilizer alone has no effect on the growth and yield of long bean plants. Keywords: Giberelin, Growth regulator, Harvest, Nutrient, Retardant.
Co-Authors Agus Sulistyono Novita Dyah Safitri Sintha Dayu Aringgani