Preliminary study on the convertion of Robusta to Arabica coffee by using grafting technique

A preliminary study to convert Robusta to Arabica coffee by grafting had been carried out at Kaliwining Experimental Station of Indonesian Coffee and Cocoa Research Institute in Jember. The soil type was Low Humic Gley and the rainfall type was C to D according to Schmidt-Ferguson classification. Three selected lines of Catimor (BP 448 A, BP 452 A, and BP 454 A) were used as scions. The robusta coffee plants converted were approximately 10 years old. The space was 2 x 2 m. Wedge-cleft grafting of single node scion (3-4 months old) with one pair of trimmed leaves on semi-ripe suckers (3-4 months old) with 1-2 pairs of leaves attached was used as a standard procedure of grafting. The canopy above graft should be pruned to achieve proper growth of the graft. The result revealed that grafting technique could be used as a method in converting Robusta to Arabica coffee. At 2 years old the percentage of the successful grafts was over 60 percent. The remaining canopy to be stumped may give approximately 55 percent of total crop of the intact Robusta. Planting Arabica coffee var. Catimor in low land area with dry weather would cause may star flowers, low coffee bean outturn (11.27 percent) and small bean size. In addition, it increased the percentage of round and triage beans.

Bibliographic Details

Main Authors:	99932 Nur, A.M., 122241 Sudjatmiko, D.A.
Format:	biblioteca
Published:	1994
Subjects:	COFFEA ARABICA, COFFEA CANEPHORA, CAFE ROBUSTA, INJERTO, RENDIMIENTO,
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