Compatibility and agronomic performance in organic systemof grafted sweet pepper

Abstract

The grafting is a technique often recommended alternative for growing peppers in areas infested with pathogens and for better production. This work was carried out to evaluate the compatibility and agronomic performance of grafted sweet pepper under organic production system. The experiment was conducted on site ecological Seridó in Rio Branco, Acre. The experimental design was a randomized complete block design, with nine treatments and four replications. The grafts sweet pepper were used to cultivate: Dulce All Big, Hybrid Satrapo and Samurai, grafted on three rootstocks hot peppers: Doce Comprida (Capsicum annuum), Doce Italiana (Capsicum annuum) and hot pepper of Cheiro (Capsicum chinense), and witnesses Dulce All Big and Samurai. The variables analyzed were: percentage of living grafts, percentage of survival after transplant, stem diameter, compatibility index, plant height, total fresh fruit weight and commercial, productivity total and commercial, number of fruits total and commercial, fruit length, fruit diameter and pulp thickness. Observed compatibility between the rootstock and grafting used. It was found that the hybrid Samurai said to be among the cultivars as well as witness and grafted in hot peppers Doce Comprida and Doce Italiana. The most productivity of fruit was obtained with treatments Doce Comprida x hybrid Samurai, Doce Italiana x hybrid Samurai, and Doce Italiana x hybrid Satrapo with average 2,75, 2,58 and 2,74 t ha-1 respectively, similar to witness Samurai with an average of 3,05 t ha-1. The hot pepper of Cheiro influenced positively the number and length of fruits. It was found that the grafting interfere in reducing the length of the hybrid fruit and no difference was observed in diameter