Agronomical performance of citrus scion cultivars grafted on Rangpur lime in north-eastern Brazil.
Year: 2016
Type: article
Abstract: The Brazilian north-eastern states of Bahia and Sergipe account for 10% of national citrus production. In this region, the majority of farmers cultivate the 'Pera' sweet orange grafted on Rangpur lime highlighting the need for new scion-rootstock combinations. Here, we evaluated vegetative, productive and phytosanitary parameters of twenty citrus scion cultivars (eight sweet oranges, four hybrids of mandarins and eight clones of 'Tahiti' acid limes) grafted on Rangpur lime, grown in the state of Sergipe. The 'Pera' scion was considered the control. The following parameters were evaluated in all scion cultivars: canopy volume, vigor, drought tolerance, nutrition, cumulative yield, yield efficiency as well as the number of mined leaves by the leaf miner 'Phyllocnistis citrella' and the number of adults of the rust mite 'Phylocoptruta oleivora'. The 'Kona' scion had the highest annual and cumulative fruit yields among sweet orange cultivars. Among the hybrids of mandarins, 'Piemonte' showed higher cumulative yield and similar production efficiency in comparison to 'Nova' and 'Page'. Soil fertility was similar among blocks of the experimental area, however leaf tissue contents of N, P and Mg differed among cultivars. Regarding the influence of pests, our results shown that all cultivars were equally susceptible to the leaf miner and the rust mite. Overall, the scion cultivars 'Kona', 'Piemonte' and 'Persian Lime 58' had higher vegetative and productive efficiency compared to the main cultivar grown in the region, the 'Pera CNPMF D6', which emphasizes their potential for orchards diversification in north-eastern Brazil.
Source: Americanae (AECID Library)
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W2582922707