Plant growth regulators and shade on emergence in macadamia nut tree

Garbelini, Renata Cristina Berchol da Silva; Ono, Elizabeth Orika; Rodrigues, João Domingos; Camili, Elisângela Clarete; Silva, Antonio Renan Berchol da

doi:10.14393/bj-v32n5a2016-33076

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Menurut Hamilton, (1957a;1957b) dan Storey & Kemper (1960) cited in Hong et al (1996, perkecambahan pertama dapat muncul dalam waktu 3-4 minggu, bahkan hingga 6 bulan. Hasil penelitian Garbelini, Ono, Domingos, Camili, & da Silva (2016) menunjukkan proses perkecambahan M. integrifolia membutuhkan waktu 45-140 hari. Lamanya proses perkecambahan tersebut disebabkan karena benih makadamia mempunyai kulit biji atau tempurung yang cukup keras.…”

Section: Pendahuluanunclassified

Skarifikasi Benih Makadamia (Macadamia Integrifolia Maiden & Betche) Menggunakan Suhu Perendaman dan Pengeringan Secara Bergilir

Putra

Sumadi

Nuraini

2019

J. tanam. industri dan penyegar

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Macadamia can be propagated using seeds. However, the seed is difficult to germinate due to shell hardness. This study aimed to determine the proper combination of seed scarification needed to break the seed coat using rotational soaking and drying at varied temperatures. The experiment was conducted at Manoko Experimental Station and BPTP of West Java from December 2018 to April 2019, used a Randomized Complete Block Design in 15 treatments and 3 replications. The treatments were: (1) water soak (WS) 24oC+drying 35oC; (2) WS 35oC (first day)+WS 24oC+drying 35oC; (3) WS 50oC ( first day)+WS 24oC+drying 35oC; (4) WS 35oC everyday+drying 35oC; (5) WS 50oC everyday+drying 35oC; (6) WS 24oC+drying 40oC; (7) WS 35oC (first day)+WS 24oC+drying 40oC; (8) WS 50oC (first day)+WS 24oC+drying 40oC; (9) WS 35oC everyday+drying 40oC; (10) WS 50oC every day+drying 40oC; (11) WS 24oC+drying 45oC; (12) WS 35oC (first day)+WS 24oC+drying 45oC; (13) WS 50oC (first day)+WS 24oC+drying 45oC; (14) WS 35oC everyday+drying 45oC; and (15) WS 50oC everyday+drying 45oC. Variable observed were moisture content of seeds, rate and percentage of seeds cracking, and length of seeds radicle. The results showed that alternating temperature during soaking and drying affected seed scarification. The fastest seed breaking rate is 3.27 days in soaking at 50oC everyday for 18 hours, with 45oC drying temperature for 6 hours, the percentage of seed breaking reached 87.67%.

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Section: Pendahuluanunclassified

Skarifikasi Benih Makadamia (Macadamia Integrifolia Maiden & Betche) Menggunakan Suhu Perendaman dan Pengeringan Secara Bergilir

Putra

Sumadi

Nuraini

2019

J. tanam. industri dan penyegar

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“…Panjang benih juga dapat dikelaskan berdasarkan dimensi benihnya. Benih-benih berukuran besar memiliki panjang rata-rata 27,77 mm, benih sedang menunjukan panjang (Garbelini et al, 2016). Pengamatan dan pengukuran tinggi, diameter dan jumlah daun pada kecambah makadamia selama 6 bulan berturut-turut mempunyai tinggi rata-rata 13,7 cm, 0,32 mm dengan jumlah daun 4 helai.…”

Section: Analisis Dataunclassified

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Aswandi

Kholibrina

Lumbantobing³

2018

JPKS

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Salah satu jenis potensial untuk rehabilitasi hutan dan lahan di DTA Danau Toba yang saat ini dalam kondisi kritis adalah makadamia (Macadamia integrifolia). Jenis ini selain adaptif pada lahan kritis, juga menghasilkan buah yang dapat dikonsumsi manusia dan bernilai ekonomi tinggi. Permintaan pasar yang semakin meningkat dari tahun ke tahun dan belum tersedia sumber benihnya, maka diperlukan upaya pembangunan sumber benih makadamia di kawasan ini, termasuk memahami karakter buah dan benih yang diproduksi. Tujuan kegiatan ini adalah untuk pengetahui karakteristik buah, benih dan teknik persemaian macadamia (Macadamia integrifolia) yang berasal dari Hutan Penelitian Sipisopiso, Danau Toba Sumatera Utara. Penelitian yang dilakukan meliputi penanganan buah; benih dan perkecambahan benih. Hasil penelitian menunjukkan rata-rata berat buah basah adalah 7,51 g atau terdapat 141 buah per 1 kg. Berat rata-rata biji adalah 5,83 g atau 181 biji dalam satu kilogramnya. Benih mulai berkecambah pada hari ke 26 dengan masa kecambah benih selama 70 hari. Daya kecambah tertinggi dihasilkan oleh benih-benih yang tidak mendapat perlakuan perendaman (kontrol). Perlakuan peretakan benih dapat mempercepat perkecambahan benih. Benih yang direndam dengan air dingin selama 24 jam mampu meningkatkan daya kecambah hingga 78%. Berdasarkan pertumbuhan awal selama 6 bulan di persemaian, kecambah memiliki tinggi rata-rata 13,7 cm dengan diameter 3,2 mm.

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Seed morphology and germination of Macadamia (Macadamia integrifolia) from North Sumatra

Susilowati

Kusuma

Kholibrina

2019

IOP Conf. Ser.: Earth Environ. Sci.

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Macadamia is an endemic species in Queensland’s rainforest and known as one of high economical nut producer. In Indonesia, makadamia cultivated in some research garden in West Java and East Java also can be found in Aeknauli Forest Research in Sipiso-piso. As valuable nut producer, macadamia can be adopted as one of targeted species for restoring Lake Toba through agroforestry scheme. For supporting the successfulness of restoring program using macadamia trees, information on species and seed character was needed, especially about its propagation strategy. But this information still very limited in Indonesia. Therefore, our research was conducted to get information on seed morphology of makadamia and it seed germination process. For seed morphology, data on seed part was quantified through direct observation and measurement. The germination process was quantified through direct observation and its occurrence process. The result on seed morphology showed that macadamia fruit was round shape on ripe condition. The fruit has 2.20 cm diameter average and 8.58 of fruit weight. The seed and endosperm thickness were 0.38cm and 1.54 cm respectively. Makadamia has hypogeal germination type and takes 5-6 months for germinating.

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Plant growth regulators and shade on emergence in macadamia nut tree

Cited by 4 publications

References 6 publications

Skarifikasi Benih Makadamia (Macadamia Integrifolia Maiden & Betche) Menggunakan Suhu Perendaman dan Pengeringan Secara Bergilir

Skarifikasi Benih Makadamia (Macadamia Integrifolia Maiden & Betche) Menggunakan Suhu Perendaman dan Pengeringan Secara Bergilir

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Seed morphology and germination of Macadamia (Macadamia integrifolia) from North Sumatra

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