Anaçlar, meyve verimi, kalitesi, abiyotik ve biyotik stres koşullarına karşı tolerans/direnç açısından turunçgil üreticiliğinde önemli bir rol oynamaktadır. Turunçgil üretimini sınırlandıran faktörlerden biri de Tylenchulus semipenetrans (Cobb, 1913) (Tylenchida, Tylenchulidae)’dır. Dayanıklı anaçlar, T. semipenetrans’ın mücadelesinde en iyi seçeneklerden birisi olmuştur. Bu çalışmada Adana ili...

Chilling temperatures (below 10' but above the freezing point of the tissue) injure fruits of coldsensitive crops native to tropical and subtropical areas (1,4, 5). Sweet orange (Citrus sinensis Osb.) fruits, even though mature internally, may not lose their chlorophyll on the trees when grown in tropical climates. However, oranges grown on the northern fringes of the sutbtropical regions of Fl...

Two distinct Phytophthora taxa were found to be associated with brown rot of pomelo (Citrus grandis), a new disease of this ancestral Citrus species, in the Vinh Long province, Mekong River Delta area, southern Vietnam. On the basis of morphological characters and using the ITS1-5.8S-ITS2 region of the rDNA and the cytochrome oxidase subunit 1 (COI) as barcode genes, one of the two taxa was pro...

In situ hybridization of 18S-5.8S-25S rDNA probes labeled with biotin or rhodamine and 5S rDNA probes labeled with digoxigenin was used to locate rDNA sites on root-tip metaphase chromosomes of Citrus sinensis L. (2n = 2x = 18), Poncirus trifoliata L. Raf. (2n = 2x = 18), and Citrus x Poncirus hybrids (2n = 2x = 18). Counterstaining with the fluorochromes chromomycin A3 and DAPI uniquely identi...

Citrus rootstock breeding is important to improve their resistance diseases, pests and adverse environmental conditions. The majority of citrus species have nuceller embryony. Although Clementine mandarin monoembryonic, in some cases (intercrossing etc.) abortive seed formation can be seen frequently. In this study, × Carrizo citrange were crossed. the interspecies hybridization (Citrus Ponciru...

ABSTRACT Xanthomonas axonopodis pv. allii is phenotypically and genetically diverse and its relationship to other X. axonopodis pathovars within DNA homology group 9.2 is unknown. In growth chamber experiments, disease symptoms were produced on onion only by inoculation with X. axonopodis pv. allii. Citrus bacterial spot symptoms were induced by X. axonopodis pvs. alfalfae, itrumelo, and allii ...

Morphological observation of arbuscular mycorrhizal fungi (AMF) species in rhizospheric soil could not accurately reflect the actual AMF colonizing status in roots, while molecular identification of indigenous AMF colonizing citrus rootstocks at present was rare in China. In our study, community of AMF colonizing trifoliate orange (Poncirus trifoliata L. Raf.) and red tangerine (Citrus reticula...

DNA methylation plays an essential role in regulating plant development. Here, we described an early flowering trifoliate orange (precocious trifoliate orange, Poncirus trifoliata L. Raf) was treated with 5-azacytidine and displayed a number of phenotypic and developmental abnormalities. These observations suggested that DNA methylation might play an important role in regulating many developmen...

Blood orange (Citrus sinensis L. Osbeck) is a rare commercial citrus fruit containing abundant anthocyanins and has numerous health benefits. rootstock determines the yield quality. This study evaluated effect of three most commonly used rootstocks on features, color index, physicochemical parameters, anthocyanin accumulation, biosynthetic gene expression, associated enzymes during development ...