Increasing Three Soybean Varieties’ Growth and Production by Soaking Using Paclobutrazol
Abstract
Soybeans represent an economically viable source of plant-based protein. This study aimed to assess the impact of paclobutrazol soaking on the growth and yield of three distinct soybean varieties. The investigation was conducted in Sampecita Village, located in the Kutalimbaru District of Deli Serdang Regency, North Sumatra, from January to May 2024. An experimental approach was employed, utilizing a factorial Randomized Block Design (RAK) that included two main treatments: soybean varieties (Dering 1, Dega 1, and Devon 1) and varying concentrations of paclobutrazol soaking (0 ppm, 25 ppm, 50 ppm, and 75 ppm), with each treatment replicated three times. The collected data were analyzed, followed by Duncan's Multiple Range Test (DMRT). The findings indicated that paclobutrazol soaking significantly influenced the growth and yield of soybean plants, particularly affecting plant height, the number of pods per plot, and the weight of 100 seeds. However, parameters such as root length, flowering age, number of productive branches, and number of pods per sample did not exhibit significant changes. The variety treatment had a notable effect on root length, number of productive branches, number of pods per sample, number of pods per plot, and weight of 100 seeds while flowering age and plant height remained unaffected. Notably, the 0 ppm concentration and the Devon 1 variety positively impacted the growth and yield of soybean plants.
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