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Dede Suhendra
UNIVERSITAS LABUHANBATU
Agriculture, Biological Sciences & Forestry

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PERTUMBUHAN BIJI KAKAO (Theobroma cacao L.) TERHADAP BEBERAPA LAMA PERENDAMAN DENGAN DAGING BUAH DAN TANPA DAGING BUAH Dede Suhendra
JURNAL AGROPLASMA Vol 4, No 2 (2017): AGROPLASMA VOL 4 NO 2
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.266 KB) | DOI: 10.36987/agr.v4i2.186

Abstract

The objective of testing some cocoa seed germination methods is to obtain information on growing ability based on sprout speed, sprout test, and vigilance. Seed germination is also influenced by the long immersion in water, the longer the soaking time germination will also be faster. The purpose of this research is to know the growth of cocoa beans to sometime soaking with fruit flesh and without meat. This research was conducted at the Laboratory of College of Agricultural Sciences of Labuhan Batu University Foundation, North Sumatera Province. This research started from March to May 2016, using factorial randomized block design with 2 factors of treatment that is the long factor of immersion and flesh factor. The old factors of immersion with 6 levels are: P1 = 2 hours, P2 = 4 hours, P3 = 6 hours, P4 = 8 hours, P5 = 10 hours, P6 = 12 hours. Factor of fruit with two levels, namely: using fruit and fruitless meat. Parameters observed included shoot number, shoot height (cm), root length (cm), wet weight of germination (g), and sprout dry weight (g). The results showed that the method of soaking the seeds was effective to increase the sprout growth rate without affecting the viability of the cocoa sprouts. Keywords: cocoa, long immersion.
PENGARUH STRATIFIKASI SUHU RENDAH DAN KRIOPROTEKTAN TERHADAP VIABILITAS BENIH ROSELA (Hibiscus sabdariffa L.) Dede Suhendra
JURNAL AGROPLASMA Vol 3, No 2 (2016): AGROPLASMA VOL 3 NO 2
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.645 KB) | DOI: 10.36987/agr.v3i2.151

Abstract

The objective of the research was to know effect of treatment low temperature and cryoprotectants, and combination to seed viability of rosele. The research was conducted at the Seed Technology Laboratory, Agriculture Faculty, University of Sumatera Utara, Medan with height ± 25 meters above sea level, in January to February 2014, using a randomized block design with 4 level low temperature stratification and cryoprotectants treatment as well combination and control. Parameters observed were moisture content seed (%), germination rate (day), germination normal (%), abnormal sprouts (%), seeds die (%), vigor index (%), wet weight of sprouts (g), dry weight of sprouts (g). The results showed that rosele seed viability using provision cryoprotectants and cooling rate -5°C the best result in treatments other. Keywords: seed rosele, low temperature stratification, cryoprotectans
EFEK PENYIMPANAN SECARA KRIOPRESERVASI PADA JENIS DAN LAMA PERENDAMAN KRIOPROTEKTAN DENGAN PERBEDAAN KONDISI BIJI TERHADAP VIABILITAS BENIH MANGGIS (Garcinia mangostana L.) Dede Suhendra
JURNAL AGROPLASMA Vol 5, No 2 (2018): AGROPLASMA VOL 5 NO 2
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.009 KB) | DOI: 10.36987/agr.v5i2.166

Abstract

Effect Storage In Criopreservasi On Type And Old South Crioprotektan Different Conditions Of Seeds Against Viability of Mangosteen Seeds (Garcinia mangostana L.). The aim of the study was to determine the type, duration of soaking and the different conditions of mangosteen seeds and their interaction with the viability of mangosteen seeds (Garcinia mangostana L.). This research was carried out at the Laboratory of Applied Sciences in Seed Technology of Labuhanbatu College of Agricultural Sciences (STIPER), starting March to July 2018, using factorial randomized block design with 3 treatment factors namely cryoprotectant type, cryoprotectant immersion and mangosteen fruit flesh. Parameters observed were normal sprouts (%), abnormal sprouts (%), dead seeds (%). The results showed that the highest application of the parameters was the use of non-fruit flesh with cryoprotectant PVS2 and 180 minutes soaking time. The results of the research were used to develop mangosteen seed storage for the needs of the community, especially mangosteen farmers in Indonesia. Keywords : crioprotektan, criopreservasi, mangosteen seeds
VIABILITAS BIJI KAKAO (Theobroma cacao L.) DENGAN BEBERAPA LAMA PERENDAMAN DENGAN DAGING BUAH DAN TANPA DAGING BUAH Dede Suhendra
JURNAL AGROPLASMA Vol 4, No 1 (2017): AGROPLASMA VOL 4 NO 1
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.382 KB) | DOI: 10.36987/agr.v4i1.181

Abstract

The objective of testing some cocoa seed germination methods is to obtain information on growing ability based on sprout speed, sprout test, and vigilance. Seed germination is also influenced by the long immersion in water, the longer the soaking time germination will also be faster. The purpose of this research is to know the viability of cocoa beans to sometime immersion using meat and fruit without fruit, this research was conducted at the Laboratory of College of Agricultural Sciences of Labuhan Batu University Foundation, North Sumatera Province. This research used factorial randomized block design with 2 factors of treatment that is the long factor of immersion and flesh factor. The old factors of immersion with 6 levels are: P1 = 2 hours, P2 = 4 hours, P3 = 6 hours, P4 = 8 hours, P5 = 10 hours, P6 = 12 hours. Factor of fruit with two levels, namely: using fruit and fruitless meat. Parameters observed included germination rate (day), normal sprouts (%), abnormal germination (%), dead seed (%), vigor index (%). The results showed that the method of soaking the seeds was effective to increase the sprout growth rate without affecting the viability of cocoa sprouts. Keywords: cocoa, long immersion
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