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Margaretta , Margaretta Christita
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Earth & Planetary Sciences Environmental Science Physics Other

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Survival Rate, Growth and Seedling Quality Index of Baringtonia Asiatica Kurz Stump Due to Length Variation of Stems and Roots Suryawan, Ady Suryawan; Margaretta , Margaretta Christita; Endro , Endro Subiandono
Jurnal Wasian Vol. 3 No. 2 (2016): December
Publisher : Forestry Department, University of Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62142/yxeb4r20

Abstract

There are 14805.14 ha of North Sulawesi coastal ecosystems that has been damaged. Baringtonia asiatica Kurz (Keben) is one type of coastal plants that can be used to protect coastal areas . Unfortunately, the propagation technique of Keben was not widely studied. This study aims to determine the characters of seedlings produced from the stumps of seed germination. The research used Complete Random Design with nine treatments, consisting of combination betwen three levels of root length (0 cm, 5 cm and 10 cm), and three levels of the stems length (5 cm, 15 cm and 30 cm). Parameters for analysis include percent of success, growth and quality index. The results show that root length and stem length factors significantly affect the height and robustness value. Treatment of root length of 10 cm and 5 cm rods allegedly produces the most excellent quality with the survival rates 93%, height 10.3 cm, diameter 1.08 cm, robustness value 2.03 and index of seed quality 1.35. Based on regulation of land rehabilitation, the height of 10 weeks stump have not qualified yet.
The Effectiveness of Papaya Leaves and Chili Pepper (Capsium fructescens) as Bioinsecticide for White Oyster Mushroom (Pleuroutus ostreatus) Cultivation Margaretta , Margaretta Christita; Suryawan, Ady Suryawan
Jurnal Wasian Vol. 5 No. 2 (2018): December
Publisher : Forestry Department, University of Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62142/486z7v56

Abstract

This study purposes to compare the effectiveness of bio-insecticides made from papaya leaf extract, and chilli pepper in several different doses to reduce pest attack on white oyster mushroom (Pleurotus ostreatus). Experiments conducted on oyster mushrooms that are fruitful with 3 formula are formula 1 (papaya and water), Formula 2 (papaya leaves, chili pepper, and water), and the formula 3 (chili pepper and water). Parameters observed were the fallen fruit, harvest weight, fruit diameter, the number of dead pests. The results concluded that the formula has a significant effect on all parameters. Formula 2 has the highest level of effectiveness of insecticides can reduce the fallen fruit to 84 %, have twice yields and 1.3 times bigger diameter than control crop yields. Formula 2 has the composition of papaya leaf extract and chili pepper (1:1:2)
Co-Authors Endro , Endro Subiandono Suryawan, Ady Suryawan