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All Journal Jurnal MIPA Proceeding International Conference on Global Resource Conservation
Daniel Peter Mantilen Ludong
Universitas Sam Ratulangi Manado
Biochemistry, Genetics & Molecular Biology Chemistry Health Professions Mathematics Physics Other

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Comparing the Drought Tolerance of Local Rice Cultivar Superwin with Other Cultivars Cultivated in North Sulawesi Province Based on Dry Matter Partitioning Ai, Nio Song; Ludong, Daniel Peter Mantilen
Proceeding International Conference on Global Resource Conservation Vol 4, No 1: Proceeding of 4th ICGRC 2013
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

Abstract

This study evaluated the drought tolerance in local rice cultivar Superwin and some other rice cultivars that are cultivated in North Sulawesi based on the dry matter partitioning. This study aimed to compare the drought tolerance of the local rice cultivar Superwin with other cultivars that are cultivated in North Sulawesi Province and to examine morphological characters that are able to be used as the indicators of drought tolerance in rice. The experiment was conducted in the glasshouse using 6 rice cultivars (cv. Superwin, Sultan, Ciherang, Serayu, Cigeulis and IR 64) grown in the soil mixture at the vegetative stage. The treatments in this experiment were water deficit (without water for 4 weeks) and well-watered (watering until field capacity). The morphological characters consisted of root dry mass, shoot dry mass, total biomass, root: shoot ratio. Root: shoot ratio was a potential indicator for drought-tolerance in rice and Superwin was potential as a drought-tolerant rice cultivar. Keywords: glasshouse, morphological characters,  vegetative, water deficit
Potensi Metode Sonic Bloom untuk Meningkatkan Pertumbuhan Tanaman Nio, Song Ai; Rumbay, Julia Angel; Anggini, Putri Sri; Supit, Patrycia Saskia Laurita; Ludong, Daniel Peter Mantilen
Jurnal MIPA Vol 10, No 2 (2021)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jmuo.10.2.2021.34345

Abstract

Metode sonic bloom merupakan pengembangan ilmu pengetahuan dan teknologi di bidang pertanian yang memanfaatkan gelombang suara dengan frekuensi tinggi tanpa merusak lingkungan. Aplikasi sonic bloom berpotensi untuk meningkatkan pertumbuhan pada tanaman yang ditunjukkan dengan adanya peningkatan pembukaan stomata, perkecambahan, pertumbuhan (tinggi tanaman, tinggi dan diameter batang, panjang dan lebar daun, dan panjang akar) serta produktivitas. Metode sonic bloom yang efektif menggunakan bunyi dengan rata-rata intensitas bunyi 65-75 dB, frekuensi bunyi 3-5 kHz dan lama pemaparan 3 jam per hari serta variasi jenis musik.  Gelombang bunyi ini menginduksi pembukaan stomata yang berdampak pada peningkatan penyerapan CO2, H2O dan unsur-unsur hara oleh tanamanThe sonic bloom method is the development of science and technology in agriculture that utilizes high-frequency sound waves without damaging the environment. Sonic bloom application was potential to increase plant growth as indicated by an increase in stomata opening, germination, growth (plant height, height and diameter of stem, length and width of leaf, and root length) and productivity. An effective sonic bloom method used sound with an average sound intensity of 65-75 dB, a sound frequency of 3-5 kHz and an exposure time of 3 hours per day as well as a variety of types of music. This sound wave induced the opening of stomata which had an impact on increasing the absorption of CO2, H2O and nutrients by plants.
Co-Authors Anggini, Putri Sri Nio Song Ai Rumbay, Julia Angel Supit, Patrycia Saskia Laurita