Acceleration of productive age through candlenut [Reutealis trisperma (blanco) airy shaw] grafting method

Abstract

The main constraints in toxic candlenut [Reutealis trisperma (Blanco) Airy Shaw] cultivation is late harvest time initiation, naturally begin to fruit at the age of 5-6 years after planting, so the crop management research is directed to more quickly harvest time (less than 5 years) through grafting. The study was carried out to determine grafting technique supporting high compatibility by studying aspects of scion sources and method of grafting, on grafting success and morphological performance during early process of graft formation and seedling stage, further plant growth. The treatment design used was Randomized Block Design (RBD) with four replications, consisting of five grafting treatments: 1) KS1/KS1 cleft grafting, 2) KS1/KS2 cleft grafting, 3) KS1/KS1 whip grafting, 4) KS1/KS2 whip grafting, and 5) KS1 plants from seed (ungrafted plant). The best grafting technique was treatment combination of scion of KS2 and top cleft or V-shaped grafting. Observation of 3 years old showed that the productive age of grafted plants faster than ungrafted plants. The highest percentage of flowering plants could be seen in the KS1/KS1 cleft grafting followed by KS1/KS1 whip grafting, KS1/KS2 cleft grafting and KS1/KS2 whip grafting. Whereas in plants that come from seeds had not entered the reproductive phase.