Plant growth, yield and fruit quality of ‘Piemonte’ tangor grafted onto 14 rootstocks on the northern coast of the state of Bahia, Brazil

Abstract

In the state of Bahia, Brazil, citrus production is mainly on the Northern Coast region, with major cultivation of ‘Pera’ sweet orange grafted onto ‘Rangpur’ lime. The production of mandarins and mandarin-like fruits is very low in spite of the increasing regional consumption. Varieties that are adapted to tropical sub humid conditions should be evaluated on different rootstocks for cultivation recommendation. This study assessed the performance of ‘Piemonte’ tangor over 14 rootstocks in Rio Real, BA. Planting was performed in 2006 on a cohesive yellow argisol, at 6.0 m x 4.0 m spacing and with no irrigation. Plant growth, production, and physicochemical attributes of fruits in 2010-2014 were assessed, in addition to tree survival and drought tolerance based on leafroll. At nine years of age, rootstocks that induced greater cumulative production of ‘Piemonte’ were ‘Riverside’ and ‘Indio’ citrandarins, ‘Santa Cruz Rangpur’ lime, and ‘Cleopatra’, ‘Sunki Tropical’ and ‘Sunki Maravilha’ mandarins. Although four hybrid rootstocks were semidwarfing, their mean efficiency was equivalent to the other rootstocks (˜ 5.5 kg m-3), resulting in the lowest production. Drought tolerance and tree survival were similar among rootstocks with minimal loss, except for TSKFL x CTSW - 049 hybrid with only 33.33% of survival. ‘Piemonte’ tangor produced fruits with general good quality under the evaluated conditions, but only peel thickness and technological index (TI) were influenced by rootstocks, with the lowest TI averages recorded for fruits harvested from scions grafted onto TSKC x (LCR x TR) - 001 and ‘Volkamer’ lemon.

Fruit quality and nutritional analysis in ‘Pêra’ orange as affected by soil available water and different rootstocks

“…Increase in yield can be obtained by adopting a set of management practices that allow improvements in plant health, in the nutritional balance of plants, in the adequate water supply, in the choice of the appropriate combination between cultivars of scions and rootstocks and in the appropriate choice of planting density (Carvalho et al 2020;França et al 2018).…”

Evaluation of mandarin hybrids grafted on 'Rangpur' lime in the Coastal Tablelands, Brazil

“…In relation to the accumulated productivity, 'Piemonte' mandarin-tangor was the most productive, with production of 137,953 kg ha -1 . França et al (2018) 2016also demonstrated good production of 'Piemonte' mandarin-tangor in Sergipe on different rootstocks, such as 'Santa Cruz Rangpur' lime, 'Red' rough lemon (C. ×jambhiri Lush. ), 'Sunki Tropical' mandarin and 'Riverside' citrandarin.…”

“…Thus, they are alternatives with great potential for commercial recommendation, providing wider range of citrus portfolio, and opportunity for more income for growers in the region. It is important to highlight that the four hybrids under study are susceptible to Alternaria alternata brown spot (PERES;REIS et al, 2006;FRANÇA et al, 2018), requiring adequate control of this disease, even if it is favored in wetter climate conditions (TIMMER et al, 2000).…”