PERAN SELULER ETILEN EKSOGENUS TERHADAP PENINGKATAN PRODUKSI LATEKS PADA TANAMAN KARET (Hevea brasiliensis L)

Tistama, Radite

doi:10.22302/ppk.wp.v32i1.33

Cited by 8 publications

(7 citation statements)

References 14 publications

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“…Namun secara umum, peningkatan konsentrasi stimulan mengakibatkan sedikit kenaikan pH pada beberapa klon tetapi diyakini metabolisme sel dalam pembuluh lateks sudah berubah. Sejalan dengan hasil penelitian Tistama (2013) perubahan pH sedikit saja dapat mengubah aktivitas suatu enzim menjadi lebih kuat atau menjadi lebih rendah, bahkan terhenti sama sekali. Stimulan etepon dapat menyebabkan sitosol menjadi alkalin dan berpengaruh terhadap stabilitas karet sehingga karet tidak cepat menggumpal jika dikombinasikan suplai air yang memadai menyebabkan aliran lateks lebih lama.…”

Section: Derajat Keasaman (Ph) Lateksunclassified

“…Semakin tinggi tingkat stimulansia maka semakin panjang panel sadap yang memiliki metabolisme lateks aktif. Masuknya etilen eksogenus yang berasal dari stimulan etepon ke dalam sel menginduksi dengan cepat dan menandai perubahan adenilat ( A d e n o s i n M o n o p o s p h a t , A d e n o s i n Dwiposphat, dan Adenosin Triposphat) dalam lateks (Tistama, 2013).…”

Section: Kadar Fosfat Anorganik (Pi)unclassified

“…Aliran lateks ditentukan oleh besarnya tekanan turgor, transfer air dari floem ke pembuluh lateks, dan proses koagulasi lateks (Jacob, Prevot, & Kekweh, 1989). Stimulan etepon dapat menyebabkan sitosol menjadi alkalin dan berpengaruh terhadap stabilitas karet sehingga karet t i d a k c e p a t m e n g g u m p a l , j i k a dikombinasikan suplai air yang memadai menyebabkan aliran lateks lebih lama (Tistama, 2013).…”

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Pengaruh Konsentrasi Stimulan Terhadap Fisiologi Lateks Beberapa Klon Tanaman Karet (Hevea Brasiliensis Muell Arg)

Atminingsih

Napitupulu

Siregar

2016

JPK

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Stimulan merupakan salah satu upaya meningkatkan produksi lateks pada tanaman karet. Penggunaan stimulan tanpa memperhatikan karakteristik klon menyebabkan kelelahan fisiologi. Penelitian ini bertujuan mengetahui pengaruh konsentrasi stimulan terhadap fisiologi lateks pada beberapa klon. Penelitian ini dilakukan di Kebun Percobaan Balai Penelitian Sungei Putih di areal plot promosi (PP/07/03) Tahun Tanam 2004. Rancangan Petak Tersarang digunakan dalam penelitian ini dengan perlakuan pertama adalah jenis klon (IRR 412, IRR 417, IRR 420, IRR 406, PB 260 dan BPM 24). Perlakuan kedua adalah konsentrasi stimulan terdiri dari tiga taraf yaitu S0 (tanpa stimulan), S1 (ethepon 2,5%), dan S2 (ethepon 5%). Hasil penelitian menunjukkan peningkatan konsentrasi stimulan dapat meningkatkan produksi, kadar thiol dan kadar fosfat anorganik, tetapi menurunkan kadar karet kering, dan kadar sukrosa. Indeks penyumbatan sangat nyata dipengaruhi oleh konsentrasi stimulan dan interaksi antara klon dan stimulan. Dari keenam klon yang diuji, klon IRR 412, IRR 406, dan BPM 24 tergolong responsif terhadap stimulan, sementara klon IRR 417, IRR 420 dan PB 260 kurang responsif. Diterima : 23 Desember 2015 / Direvisi : 3 Maret 2016 / Disetujui : 4 April 2016 How to Cite : Atminingsih, A., Napitupulu, J., & Siregar, T. (2016). Pengaruh konsentrasi stimulan terhadap fisiologi lateks beberapa klon tanaman karet (Hevea brasiliensis Muell Arg). Jurnal Penelitian Karet, 34(1), 13-24. Retrieved from http://ejournal.puslitkaret.co.id/index.php/jpk/article/view/219

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Section: Derajat Keasaman (Ph) Lateksunclassified

Section: Kadar Fosfat Anorganik (Pi)unclassified

unclassified

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Pengaruh Konsentrasi Stimulan Terhadap Fisiologi Lateks Beberapa Klon Tanaman Karet (Hevea Brasiliensis Muell Arg)

Atminingsih

Napitupulu

Siregar

2016

JPK

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“…clones, plant age, and seasonal variations; each clone has a different exploitation system (Boerhendhy and Amypalupy, 2011). Stimulants are commonly used to extend the latex flow period and increase yield and labor efficiency (Tistama, 2013). According to Krishnakumar et al (2011), stimulant application can be an alternative to reduce tapping costs caused by higher labor costs and the lack of skilled workers.…”

Section: Introductionmentioning

confidence: 99%

Latex quality and yield parameters of Hevea brasiliensis (Willd. ex A. Juss.) Müll. Arg. clone PB 260 for different tapping and stimulant application frequencies

Purwaningrum

Asbur

Junaidi³

2019

Chil. j. agric. res.

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Tapping and stimulant applications are an attempt to increase latex yield. A combination of stimulants with low intensity tapping systems was expected to reduce tapping costs. In addition, it was necessary to regulate the stimulant application frequency based on type and potential clone production. The objective was to determine the effect on physiological parameters and latex yield of Hevea brasiliensis (Willd. ex A. Juss.) Müll. Arg. clone PB 260 for different tapping and stimulant application frequencies. The study design was split block in randomized complete block plots with three replicates and two factors. The main plot was the tapping system consisting of four levels: quarter-spiral downward tapping (S/4 d3), quarter-spiral upward tapping (S/4U d3), half-spiral downward tapping (S/2 d3), and half-spiral upward tapping (S/2U d3). The subplots were four stimulant application frequencies consisting of ethephon 2.5% applied once every 15 d (ET 15d) and gas stimulant (equal to ± 100% ethylene) applied once every 9 d (ETG 9d), once every 18 d (ETG 18d), and once every 27 d (ETG 27d). The highest sucrose levels (3.62 mM) were obtained in S/2 d3 and ET/15d combination. The highest inorganic P content (27.68 mM) was in S/2 d3 and ETG/18d. The highest yield (2418.53 kg ha-1 yr-1) was in S/4d3 and ETG/18d. The tapping system S/4d3 and ETG/18d combination was able to increase production by 102.26% compared with the conventional tapping system (S/2 d3 and ET/15d). After the 1-yr trial, all treatments showed 0.47 to 0.54 mM thiol content, which indicated that plants did not experience over-exploitation stress.

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“…The use of ethepon can lead to increased production by delaying the occurrence of coagulation causing plugging in latex vessels which resulting longer latex flowing [5]. In addition to stabilizing lutoid, the use of ethepon stimulant will increase pH in cytosol or known as alkalinization which affects latex stability and prevent (delay) coagulation, and when combined with adequate water supply causes longer latex flow [6]. However, long term use of these stimulants can decline plant health and may trigger physiological stress due to excessive stimulation and not suitable with the clone characters.…”

Section: Introductionmentioning

confidence: 99%

PEG Based Alternative Stimulants and the Effect on Latex Production and Physiology of 6 Years Old of Clone PB 260

Rahayu¹,

Nurhayati²,

Tistama³

et al. 2018

IJET

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The objectives of this study is to study formulation of PEG based alternative stimulant to increase latex production and physiologically safe for clones PB 260. This research was conducted at Sungei Putih Research Center, Rubber Research Center, Deli Serdang Regency, Province of North Sumatera and PTPD Paya Pinang, Tebing Tinggi, North Sumatera. The study uses 6 year-old of rubber clone PB 260 to determine differences in some parameter such as production (g/p/s), inorganic phosphate, sucrose and thiol levels. The results showed that stimulants have significant effect on production (g/p/s) and inorganic phosphate. PEG applications can encourage increased production (g/p/s) and inorganic phosphate. The combination of stimulant and PEG has very significant effect on production (g/p/s) and inorganic phosphate.

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PERAN SELULER ETILEN EKSOGENUS TERHADAP PENINGKATAN PRODUKSI LATEKS PADA TANAMAN KARET (Hevea brasiliensis L)

Cited by 8 publications

References 14 publications

Pengaruh Konsentrasi Stimulan Terhadap Fisiologi Lateks Beberapa Klon Tanaman Karet (Hevea Brasiliensis Muell Arg)

Pengaruh Konsentrasi Stimulan Terhadap Fisiologi Lateks Beberapa Klon Tanaman Karet (Hevea Brasiliensis Muell Arg)

Latex quality and yield parameters of Hevea brasiliensis (Willd. ex A. Juss.) Müll. Arg. clone PB 260 for different tapping and stimulant application frequencies

PEG Based Alternative Stimulants and the Effect on Latex Production and Physiology of 6 Years Old of Clone PB 260

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