نتایج جستجو برای: genus rubus
تعداد نتایج: 141623 فیلتر نتایج به سال:
A cane disease of a non-commercial thornless blackberry cultivar (genus Rubus, subgenus Rubus Watson) obtained in breeding program was observed May 2021 northern Spain during field evaluation. Symptoms the appeared spring and firstly consisted dark-brown lesions petioles, tips, intermediate zones canes, finally causing leaves, lateral shoots to die. Two strains were recovered from infected cane...
In the present study, two species of rosaceous rust fungi are reported from Iran. Ochropsora ariae is newly reported for Iranian rust mycobiota. This is the first report of a member of the genus Ochropsora from Iran. Kuehneola uredinis is reported for the second time from Iran since its first report in 1958 under the name K. albida. Pyrus boissieriana</em...
Karyotype study was performed across 7 populations of 4 Rubus species growing in Iran. The results showed that the chromosome numbers of R. sanctus (2n=2x=14) diploid, R. caesius, and R. discolor were (2n=4x=28) tetraploids, R. persicus (2n=8x=56) octoploid. The chromosome numbers of R. discolor, and R. persicus were reported here for the first time. Karyotypic formula also varied between the s...
The genus Colletotrichum, comprised of pathogenic fungi that affect plants grown worldwide, causes the disease known as anthracnose in several fruit and vegetable species. Several studies conducted on plants have shown that the disease is characterized by the presence of one or several species of the fungus attacking the fruit or other organs of the same host. To develop and implement effective...
This review examines the issues of ex situ conservation Rubus L. genetic resources in world’s genebanks and various institutions different countries. The most urgent among studied problems are preserving interspecific intraspecific diversity its sustainable utilization breeding programs. main attention is paid to pomologically important subgenera – raspberries Idaeobatus Focke (= Batidaea (Dumo...
مطالعه فون کنه های بالا خانواده raphignathoidea طی سال های 1392-1391 در شهرستان زنجان انجام گرفت. در این بررسی مجموعاً 22 گونه متعلق به چهار خانواده و هشت جنس جمع آوری و توصیف شد که یک گونه برای اولین بار برای فون دنیا گزارش گردید که با علامت (*) مشخص شده است. همچنین جنس نر گونه های stigmaeus haddadi bagheri & zarei, stigmaeus boshroyehensis khanjani et al برای اولین بار در دنیا گزارش شدند. cal...
initial growth of quercus castaneifolia (c.a.meyer.) seedling in competition with rubus fructicosus l. was investigated in a caspian lowland intervened forest located in noor city, north of iran. the research was conducted as factorial experiment in three replications. for this purpose, seedlings of 3 and 5 mm in collar diameter (cd) were planted in areas a (covered with rubus), b (without rubu...
The genus Pseudovirgaria, based on P. hyperparasitica, was recently introduced for a mycoparasite of rust sori of various species of Frommeëlla, Pucciniastrum and Phragmidium in Korea. In the present study, an older name introduced by Saccardo based on European material, Rhinotrichum griseum, is shown to resemble P. hyperparasitica. Morphological study and ITS barcodes from fresh collections of...
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