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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Buletin Iptek Tanaman Pangan Journal of Tropical Crop Science Jurnal Bioindustri Journal of Bioindustry
Maryati Sari
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University)
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Energy Environmental Science

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Pengaruh Sarcotesta dan Pengeringan Benih serta Perlakuan Pendahuluan terhadap Viabilitas dan Dormansi Benih Pepaya (Carica papaya L.) Maryati Sari; Endang Murniati; M. Rahmad Suhartanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 33 No. 2 (2005): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.084 KB) | DOI: 10.24831/jai.v33i2.1517

Abstract

Improved seed longevity by seed drying and application of  phenolic compound as natural antioxidant is the topic of this research. In many cases the sensitivity of papaya seed to drying is being the limit factor because of desiccation injury or induced dormancy. There is phenolic compound on the sarcotesta surrounding papaya seed which may act either as antioxidant or as germination inhibitor. The effect of sarcotesta and seed drying on viabillity and dormancy was studied. The experiment was conducted in July - October 2004, located at Bogor Agricultural University, used papaya seed (IPB-1) which harvested from Pusat Kajian Buah Tropika (PKBT) farm in Bogor. In the last study, seed was dried in the absence and presence of sarcotesta until 11-12% and 6-7% moisture content (mc). After drying, seed viability was measured by tetrazolium test.  The hardness of seed was also measured using penetrometer.  Seed germination was tested by (1) soaking on 10% KNO3, (2) scarification on water using  electrical stirrer, (3) soaking on 10% KNO3  with scarification using electrical stirrer, (4) scarification on the  hot water (50oC) followed by soaking on 10% KNO3.   In the absence of sarcotesta, the viability of 6-7% mc seed was as high as 11-12% mc seed. There was neither viability reduction nor induced dormancy. Whereas in the presence of sarcotesta, there was also no viability reduction but the dormancy was induced. The dormancy of seed with 11-12% mc was longer than seed with 6-7% mc. Scanning electron microscopy images showed that sarcotesta was removed by cleaning treatment before drying. On the contrary, sarcotesta was not completely removed from the seed and became more impermeable when cleaning was done after drying.This research can not suggest the most effective  pre-treatment to break the dormancy. The mechanism of the dormancy is discused.   Key words: Carica papaya L., seed drying, sarcotesta, seed viability, seed dormancy
Pengaruh Pemeraman Buah dan Periode Simpan terhadap Viabilitas Benih Pepaya (Carica papaya L.) Endang Murniati; Maryati Sari; Ema Fatimah
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 2 (2008): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (62.55 KB) | DOI: 10.24831/jai.v36i2.20504

Abstract

The objective of this experiment was to study the influence of post-harvest storage and storage period to seed viability. The research was conducted in the Laboratory of Seed Science and Technology and the green house at Leuwikopo IPB Darmaga, from February until August 2007. The experiment used split-plot design with three replications. The main plot was seven periods of storage: 0, 3, 6, 9, 12, 15, and 18 weeks. The sub plot was the period of post-harvest maturation storage (use the fruits with 30-40% yellow coloured): 0, 2, 4, 6 days post-harvest storage, and control fruits that ripe on the tree (with 80-90% yellow coloured). The control fruits have the best seed viability and vigor. Viability of seed from fruits with 0, 2 and 6 days post-harvest storage was significantly less than that of control. Seed from four days post-harvest storage have same viability as control. Post-harvest storage can improve physiological seed quality on the seed that must be harvested before the time of physiological maturity, especially four days post-harvest storage
Co-Authors , Erinnovita Adolf Pieter Lontoh, Adolf Pieter Aisa Amanah Amalia Rosida Anggraini, Dwi Vista Ani Kurniawati Dani, Robi Rahmat Diaguna, Ridwan Didik Sucahyono Dwi Guntoro Edi Santosa Ema Fatimah ENDANG MURNIATI Endang Murniati Eni Widajati Eny Widajati Esty Putri Utami Esty Putri Utami Faiza Chairani Suwarno Fitriesa, Sophia Juang Gema Kartika M. R. Suhartanto M. R. Suhartanto Memen Surahman Miranda, Citra Mohamad Rahmad Suhartanto Permatasari, Arinda Ayu Permatasari, Okti Syah Isyani Pitri Ratna Asih Qadir, Abdul Raden Enen Rindi Manggung Rahman, Anita Rahmasari Ratri Tri Hapsari Satriyas Ilyas SATRIYAS ILYAS Selly Salma Sophia Fitriesa Supijatno Tiarlinda Situmorang