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All Journal Agroplantae: Jurnal Ilmiah Budidaya dan Pengelolaan Tanaman Perkebunan Warta Pusat Penelitian Kelapa Sawit
Supena, Nanang
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Social Sciences

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SELF INCOMPATIBILITY PADA TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) Nurhermawati, Renica; Supena, Nanang; Arif, Mohamad
Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian dan Perkebunan Vol 13 No 2 (2024): Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian da
Publisher : Jurusan Budidaya Tanaman Perkebunan, Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/agro.v13i2.824

Abstract

Self-incompatibility (SI) is a genetic mechanism which prevents self-pollination and encourages plant cross-pollination, but the mechanism has not been studied on oil palm. The article examines possibilities of SI mechanisms on oil palm which cause pollination failure. References which were published nationally (S2-S3) and internationally (Q1-Q4) were utilized. In general, plants have two types of SI: heteromorphic self-incompatibility (HetSI) and homomorphic self-incompatibility (HomSI). HetSI is caused by plants having morphologically different flower types, while HomSI occurs when plants have morphologically similar flowers. However, an SI mechanism is still regulated at the genetic level. Homomorphic SI can also be divided into two types based on the genetic determinants of pollen incompatibility: Gametophytic Self Incompatibility (GSI) and Sporophytic Self Incompatibility (SSI). In GSI, the SI mechanism is controlled by the genotype of the pollen itself, which is haploid, while in SSI, it is determined by the genotype of the plant tissue (sporophyte) that produces the pollen and is diploid. The S-locus regulates both types of SI with different mechanisms. In seedless oil palm plants, S-RNAse was found to play a role in the degradation of pollen tubes, SRK (S-receptor kinase), and SLG (S-locus glycoprotein), which are genes that regulate the HomSI mechanism in several plants. The presence of S-RNAse and genes in the S-locus raises the possibility of an SI mechanism in oil palms that produce seedless fruit. In addition, a mechanism of stenospermy and endosperm tissue abnormalities is thought to produce fruit with sterile seeds (without embryos) in oil palms. However, it is still being determined whether both are part of the SI response or not. So, further studies are needed to confirm this and give the new perspectives
IMPLEMENTASI APLIKASI QR-CODE SCANNER BERBASIS WEB UNTUK PENELUSURAN RIWAYAT PRODUKSI BENIH PADA POHON INDUK KELAPA SAWIT Supena, Nanang; Azzahra S, Indah; Kusuma Prasetyo, Kayla; Kiasaty, Khara; Salsabila Batubara, Sarah; Anggara, Julyant
WARTA Pusat Penelitian Kelapa Sawit Vol. 30 No. 3 (2025): Warta Pusat Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.war.warta.v30i3.221

Abstract

Aplikasi IOPRI Palm Scanner berbasis web dikembangkan untuk meningkatkan efisiensi penelusuran riwayat produksi benih kelapa sawit melalui pemindaian QR-Code yang terpasang pada pohon induk. Aplikasi ini dirancang untuk memudahkan akses data pohon induk, monitoring proses persilangan, dan pelacakan produksi benih di Pusat Penelitian Kelapa Sawit (PPKS). Dengan memanfaatkan teknologi frontend (HTML, CSS, JavaScript) dan backend (Laravel, PHP), sistem terintegrasi dengan database SIMSUS yang telah ada. Hasil pengujian menunjukkan aplikasi mampu mempercepat identifikasi pohon, mengurangi kesalahan input manual, dan menyajikan data secara akurat. Kendala seperti ketergantungan pada koneksi internet dan kerusakan label QR-Code menjadi tantangan yang perlu diatasi. Untuk pengembangan selanjutnya, disarankan penambahan fitur offline mode guna meningkatkan fleksibilitas penggunaan di lapangan.
Co-Authors Anggara, Julyant Arif, Mohamad Azzahra S, Indah Kiasaty, Khara Kusuma Prasetyo, Kayla Nurhermawati, Renica Salsabila Batubara, Sarah