Effects of Foliar-Applied Brassinosteroid on Viability and In Vitro Germination of Pollen Collected from Bisexual and Functional Male Flowers of Pomegranate
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Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Evaluation of pollen viability and its germination capacity are essential criteria for pollinator's characterization. Hormones have been used to increase yield and quality of pomegranates without any reference to effects on pollen viability or germination. With this point of view, effects of field-applied 22S, 23S-homobrassinolide (HBR) after bud break at concentrations of 0.001, 0.01, and 0.1 mg L-1 were evaluated on pollen quality of Mayhos-8 pomegranate cultivar. After collection of the flowers of both sexual morphs (bisexual and functionally male), colori-metric test of 2,3,5-triphenyl tetrazolium chloride (1%) were used to estimate pollen viability. Later, pollen germination was determined in vitro on a medium containing 1% agar and 20% sucrose. Results showed that pollen viability was under the influence of both the types of the flower and the concentration of the HBR. The highest pollen viability (96%) was obtained from both functional male and bisexual flowers treated with 0.1 mg L-1 HBR. Germination ratio, on the other hand, was only affected by the hormone concentrations, and it increased significantly as the concentration was higher.
Açıklama
Anahtar Kelimeler
Germination, pollen, Punica granatum L., viability, 22S, 23S-homobrassinolide
Kaynak
International Journal of Fruit Science
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
18
Sayı
2
