Effect of Certain Plant Crude Extracts on the Growth of Upland Rice (Oryza sativa L.)

Abstract

A b s t r a c t A r t i c l e I n f oTest of crude extracts of several plant species was conducted in a screen house to determine the best plant species and the most effective concentration of extract for increasing growth of upland rice (Oryza sativa L.) cultivated in Ultisol. The test was done using Nested Design. First factor was sources of extracts: 1) leaves of cassava, 2) leaves of G. linearis, 3) C. asiatica, 4) stem bark of A. scholaris, and 5) fruit pericarp of mangosteen. Second factor was extract concentrations: 0 (control), 25, 50, and 100 mg/L. Applications of crude extract of mangosteen fruit pericarp at concentration 50 mg/L increased fresh weight of roots with the highest average weight 48.33 g, while the control was 13.33 g. However, plant height given extract of mangosteen (50 mg/L) was lower (74.90 cm) compared to the one in control (87.70 cm). On lower (25 mg/L) and higher (100 mg/L) concentrations of mangosteen pericarp extracts, fresh weight of roots tended to be lower than in control. Application of crude extract of C. asiatica at concentration 100 mg/L showed higher plant height with average 79.30 cm than in control 69.60 cm. Application of crude extract of mangosteen fruit pericarp showed the increasing of plant height from two to three weeks after planting, and crude extract of C. asiatica increased the plant height in third weeks after planting.

Effect of Biostimulant Formulation of Centella asiatica (L.) Urb. Crude Terpenoid Extract with Addition of Micronutrients on the Growth and Yield of Upland Rice (Oryza sativa L.)

“…As has been reported in previous research (Z Zakiah, Andalas University, Indonesia, Postgraduate Dissertation) that C. asiatica terpenoid extract can act as a biostimulant with physiological effects increasing the biosynthesis of gibberellin and auxin. Application of crude extract of C. asiatica at concentration 100 mg/L showed higher plant height with average 79.30 cm than in control 69.60 cm (11). These physiological effects can be enhanced by the addition of micronutrients.…”

“…Urea was applied three times at 10, 35 and 55 days after planting, respectively. Treatment of terpenoid extracts with the addition of micronutrients (25 ml per plant) was sprayed onto the leaf surface at 14 days after planting [11].…”

“…Application of crude extract of C. asiatica by spraying onto leaves at a concentration of 25 mg/l could increase the height and leaf area of soybean plants [10]. Application of crude extract of C. asiatica at a concentration of 100 mg/L was able to increase the growth of upland rice [11], and at a concentration of 25 mg/L could increase plant height, number of leaves and fresh weight of corn [12]. According [13], secondary metabolites from plants have potential as biostimulants.…”

Application of Centella asiatica extract as Biostimulant on Growth of Kale (Brassica oleracea var. acephala DC)

“…Hasil penelitian Zakiah et al, (2017), dari skrining lima jenis ekstrak tanaman membuktikan bahwa aplikasi ekstrak kasar pegagan berpengaruh positif dalam peningkatan luas daun dan tinggi tanaman kedelai dibanding ekstrak tanaman lain. Aplikasi ekstrak kasar dari pegagan juga mampu meningkatkan tinggi tanaman padi gogo (Ummah et al, 2017). Ekstrak kasar pegagan sangat efektif dalam meningkatkan tinggi tanaman, jumlah daun dan bobot basah tanaman jagung (Aulya, 2017).…”

Aklimatization Black Orchid Plantlets (Coelogyne pandurata Lindl.) with Biostimulant Moringa Leaf Extract (Moringa oleifera Lamk.)

“…Menurut Nardi et al (2015), biostimulan hanya akan bekerja pada konsentrasi yang sesuai, konsentrasi yang tidak tepat tidak akan memberikan pengaruh terhadap pertumbuhan tanaman atau bahkan dapat menghambat pertumbuhan tanaman. Penelitian Ummah et al (2017), pemberian ekstrak kulit buah manggis konsentrasi 50 mg/L menunjukkan hasil yang signifikan dalam meningkatkan pertumbuhan tanaman padi gogo pada parameter mata tunas, berat segar dan kering akar, serta berat segar dan kering tunas. Pada konsentrasi ekstrak kulit manggis yang lebih rendah (25 mg/L) dan lebih tinggi (100 mg/L), hasil pada parameter tersebut menjadi turun atau menjadi tidak signifikan.…”