Study of hybrids results from hybridization of selective late flowering almonds with Spanish self compatible almond for selecting the superior self compatiblevarieties
2007
Imani, A`li | Dam Yar, Sima
In this research ,in order to obtain new self compatible, cold resistant and late flowering almond varieties with desirable pomological and vegetative characteristics, and suitable nut characteristics,200 hybrids were studied during 2003,2004and2006. Seeds were collected from crossed mother trees were planted in plastic vases after passing stratification stages. After one year the seedlings to evaluate were transferred to the orchard. IBPGR descriptors used to evaluate more than 40 phenotypic characteristics. In various phonological stages of hybrids trees, many vegetative and reproductive traits and nut characters, such as date of blooming, corolla shape, petal color, length and width of leaf, nut weight, kernel doubling, kernel weight, petiole length, present of hairs on leaf surface and etc were measured and recorded in orchard and laboratory. The results revealed several superior late-flowering hybrids which flowers very late. Only 40 hybrids out of 200 hybrids didn&rsquot damage by late frost spring at same conditions in 2005.From among 40 cold resistance and late flowering hybrids, 15superior hybrids for future study have been selected. In report, the promising, cold resistant hybrids and their phonological and pomological characteristics has been described. In finaly, in this research was selected 12 superior hybrids for next advanced studies.
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