Anatomical Characteristics of Roots and Stems of Citrus Rootstock as Parameter for Estimating of Rimau Gerga Lebong (RGL) Mandarin Citrus Vigor
| Main Authors: | Yulianti, Farida, Latif Adiredjo, Afifuddin, Soetopo, Lita, Ashari, Sumeru |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Indonesian Society for Horticulture / Department of Agronomy and Horticulture
, 2020
|
| Online Access: |
http://journal.ipb.ac.id/index.php/jhi/article/view/36264 http://journal.ipb.ac.id/index.php/jhi/article/view/36264/21924 |
Daftar Isi:
- Vigor tanaman jeruk dipengaruhi oleh batang bawah yang digunakan. Penelitian bertujuan untuk mendapatkan korelasi antara karakter anatomi akar dan batang terhadap tinggi tanaman jeruk batang bawah dan mendapatkan variabel prediksi vigor tanaman jeruk keprok RGL. Penelitian dilaksanakan di KP-Tlekung, Balitjestro mulai bulan Juni 2019 – Maret 2020. Penelitian menggunakan batang bawah JC, Citrumelo dan Kanci dengan batang atas jeruk keprok RGL. Percobaan dilaksanakan dengan rancangan acak kelompok, lima kali ulangan. Hasil penelitian menunjukkan bahwa pertumbuhan JC dan Citrumelo sama dan lebih tinggi dibandingkan Kanci. Ketiga jenis batang bawah memiliki karakter anatomi yang berbeda. Hasil analisis korelasi menunjukkan bahwa karakter persentase dan luas pembuluh xylem baik pada akar maupun batang berkorelasi positif terhadap tinggi tanaman batang bawah. Batang bawah kanci memiliki persentase dan luas pembuluh paling kecil. Batang bawah JC memiliki persentase xylem dan rata-rata luas pembuluh xylem tertinggi baik pada irisan melintang akar maupun batang. Batang bawah Citrumelo memiliki densitas pembuluh xylem/mm2 tertinggi. Hasil evaluasi pada tanaman jeruk keprok RGL umur tiga tahun menunjukkan bahwa batang bawah JC dan Citrumelo menyebabkan tinggi tanaman dan volume kanopi lebih tinggi dibandingkan pada batang bawah Kanci. Karakter persentase dan luas pembuluh xylem dapat digunakan sebagai parameter penduga vigor tanaman jeruk RGL. Kata kunci: Jeruk batang bawah, jeruk keprok RGL, karakter anatomi, xylem, vigor
- The citrus plant's vigor was affected by rootstock used. This study aims to obtain a correlation between the root and stem anatomical characters of citrus rootstock and to obtain predictor variables of RGL mandarin citrus vigor. The research was conducted at Tlekung Field Trial of ICISFRI from June 2019 to March 2020. The experiment used JC, Citrumelo and Kanci rootstocks with RGL mandarin as a scion. The experiment was carried out in a randomized block design with five replications. The results showed that the growth of JC and Citrumelo were the same, and higher than that of Kanci. The three types of rootstocks had different anatomical characters. The correlation analysis showed that characteristics of percentage and vessel area of xylem both at the roots and stems were positively correlated with rootstock plant height. The Kanci rootstock had the smallest percentage and vessel area of xylem. The JC had rootstock the highest percentage of xylem and vessel area of xylem both at the roots and the stems. The Citrumelo rootstock has the highest density of xylem / mm2 vessels. Citrumelo rootstock had the percentage of xylem, while JC rootstock has the largest vessel size of xylem. Evaluation results on three-year old RGL mandarins showed that JC and Citrumelo rootstocks caused higher plant height and canopy volume than Kanci one. The characters of percentage and vessel area of xylem can be used as a predictor of RGL mandarin citrus vigor. Keywords: citrus rootstock, RGL mandarin citrus, anatomical characters, xylem, vigor