אסיף מאגר המחקר החקלאי

Clonal variability among Rosa indica rootstocks: morphology, horticultural traits and productivity of scions

Year:

1993

Source of publication :

Authors :

Volume :

53

Co-Authors:

Raviv, M., Agricultural Research Organisation, Department of Ornamental Horticulture, Newe Ya'ar Research Station, P.O. Haifa 31999, Israel
Medina, S., Agricultural Research Organisation, Department of Ornamental Horticulture, Newe Ya'ar Research Station, P.O. Haifa 31999, Israel
Shamir, Y., Agricultural Research Organisation, Department of Ornamental Horticulture, Newe Ya'ar Research Station, P.O. Haifa 31999, Israel
Gil'ad, Sh., Agricultural Research Organisation, Department of Ornamental Horticulture, Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Duvdevani, O., Ministry of Agriculture, Extension Service, P.O. Box 55, Afula, 18 100, Israel
Shor, Y., Ministry of Agriculture, Extension Service, P.O. Box 55, Afula, 18 100, Israel
Schayer, R., Ministry of Agriculture, Extension Service, P.O. Box 55, Afula, 18 100, Israel

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Abstract:

Rosa indica Major is the predominant rootstock for roses grown in greenhouses for cut flower production under Mediterranean conditions. Seventeen clones of R. indica were collected from various locations in Israel and abroad and were grown for 3 years during which various traits were studied. The plants were routinely pruned and their yield was counted as the number of cuttings per plant. Shoots were sampled and checked for thorniness. Damage caused by powdery mildew and spider mites was visually assessed. Cuttings were rooted under mist either on their own or as grafted plantlets. Rooting capability and graft-take were determined. Large variability was found among clones for all the parameters studied. Five clones were randomly chosen and grafted with three commercial cultivars. The 2-year cumulative flower yields differed greatly among the combinations suggesting that rootstock clonal selection for each cultivar should be conducted in order to ensure highest productivity. © 1993.

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