Effect of treatments on budwood and rootstock before budding to the growth of citrus stock of tangerine cv. Tejakula (C. reticulata Blanco)

English. The aim of the study was to find out method of treating budwood and rootstock before budding that was able to eliminate dorman buds and accelerate the growth of seedling of tangerine cv. Tejakula. The experiment was conducted at Horticulture Nursery of Buleleng, Bali, from April 1993 to March 1994. This experiment was arranged in Randomized Block Design with three replications and 20 plants per treatment. The result showed that budwood kept in refrigerator (4 degree - 7 degree C) for two weeks before budding reduced number of dormant buds, and later budbreak time. Leaf defoliation following by tip pruning of budwood a week before budding had no effect on all growth parameters observed. Leaf defoliation around budding site following by tip pruning of rootstock a week before budding enhanced the growth of stocks

Indonesian. Tujuan penelitian ini adalah untuk memperoleh cara perlakuan ranting mata tempel dan batang bawah jeruk Japansche Citroen yang mampu mengurangi mata tempel dorman dan mempercepat pertumbuhan bibit jeruk keprok Tejakula. Penelitian dilaksanakan dari bulan April 1993 sampai Maret 1994 di BBU Hortikultura Sukasada, Buleleng, Bali, berdasarkan percobaan faktorial dalam Rancangan Acak Lengkap, diulang tiga kali dengan masing-masing perlakuan terdiri dari 20 tanaman. Ranting mata tempel yang disimpan dalam refrigerator bersuhu 4 derajat C - 7 derajat C selama dua minggu sebelum penempelan dapat menurunkan jumlah mata tempel dorman dan saat pecah tunas. Perompesan daun yang diikuti pemangkasan pucuk ranting mata tempel seminggu sebelum penempelan tidak berpengaruh terhadap seluruh parameter pertumbuhan yang diamati. Perompesan daun batang bawah pada bidang penempelan yang diikuti pemangkasan pucuknya seminggu sebelum penempelan dapat mempercepat pertumbuhan bibit