Growth, yield, and fruit quality of ‘Rhode red Valencia’ and ‘Valencia Late’ sweet oranges grown on three rootstocks in eastern Mediterranean

Abstract

The plant growth, yield, yield efficiency, and fruit quality of 'Rhode Red Valencia' and 'Valencia Late' sweet oranges (Citrus sinensis (L.) Osbeck) on three rootstocks were evaluated under Eastern Mediterranean climatic conditions of Dörtyol-Hatay, which is one of the oldest and largest citrus and mandarin (Citrus reticulata Blanco) production regions in Turkey. The fruit yield was affected by rootstock in both scion cultivars from 2007 through 2010. Trees on 'Troyer' citrange had lower yield than those budded on the other rootstocks. The yield of 'Rhode Red Valencia' and 'Valencia Late' orange trees on 'Carrizo' citrange were about 9% and 19% more than those on 'Troyer' citrange, respectively. But trees on 'Troyer' citrange had significant higher yield efficiency than trees on sour orange and 'Carrizo' citrange, because of canopy volume of 'Troyer' citrange was lower than the other rootstocks. The heaviest fruits of 'Valencia Late' orange trees were harvested from 'Carrizo' citrange (214.69 g), while 'Rhode Red Valencia' orange trees did not show differences regarding the rootstock. The rootstocks had no significant effects on juice content of 'Rhode Red Valencia' and 'Valencia Late' oranges. The effects of the rootstocks in both scion cultivars on juice content, total acids (TA), Brix:TA ratio, and number of seeds per fruit were found to be insignificant.

Performance of 'Valência' sweet orange grafted onto rootstocks in the state of Acre, Brazil

“…The scion/rootstock ratio (SRR) was statistically similar in all treatments, although the most favorable rootstocks were the 'Cleópatra' mandarin, LVK x LCR-038, and the 'Santa Cruz' Rangpur lime (Table 1). Similar results were obtained for 'Valência Rhode Red' and 'Valência Late' (Yildiz et al, 2013). No symptoms associated with grafting incompatibility were observed during the evaluation period in the present study.…”

Hybrid Rootstocks for Valencia Sweet Orange in Rainfed Cultivation Under Tropical Savannah Climate

“…A similar behavior was observed in most selected rootstocks, which was interestingly not related to the tree size class. The rootstock influences on the alternate bearing of the scion variety under water deficit conditions, with variations higher than 50% in some late sweet orange varieties (Yildiz, Demirkeser, & Kaplankiran, 2013;Cantuarias-Avilés, Mourão Filho, Stuchi, Silva, & Espinoza-Núñez, 2011). Considering the scenario of constraining climate change and limited water supply for citrus irrigation in the major producing regions (Fares, Bayabil, Zekri, Mattos Junior, & Awal, 2017;Carr, 2012), the breeding of rootstocks that use water more efficiently or tolerate seasonal drought will become determinant for the sustainability of the citriculture on condition that high yield of high quality fruits will remain as main selection criteria.…”

Factors affecting citrus fruit quality: Emphasis on mineral nutrition

“…Cantuarias-Aviles et al (2010), when comparing 'Okitsu' tangerine fruits grafted on 12 rootstocks, found that 'Flying Dragon' induced higher TA and SS values, whereas 'Cravo Limeira' and 'Cravo FCAV' limes induced higher precocity and lower FQ. Yildiz et al (2013), while evaluating rootstock effect on 'Valencia Late' and 'Rhode Red Valencia' orange tree fruit quality in Dörtyol-Hatay, Turkey, obtained higher fresh fruit mass for 'Valencia Late' when it was grafted on 'Carrizo', and there were no fresh fruit mass differences for 'Rhode Red Valencia'. On the other hand, according to the authors, there was no rootstock effect on juice percentage, number of seeds per fruit, TA and SS/TA ratio.…”