The accumulation of phytic acid during development of lily (Lilium longiflorum Thunb.) pollen and its degradation during germination have been studied. A substantial amount of phytic acid accumulates in lily pollen by 5 days before anthesis, and little change occurs during subsequent maturation. Mature lily pollen contains 7 to 8 micrograms phytic acid per milligram pollen. Considerable degrada...

The stem anatomy and pollen morphology of Iranian members of the genus Corydalis (except C. seisumsiana in pollen morphology) were studied using light and SEM microscopy. The results verified the argument that the tuberous sections of Corydalis, including Radix-cava, Corydalisand Leonticoides could be classified in a single subgenus as a natural grouping. The study also revealed that the specie...

Application of 100 microM aspterric acid (AA), a pollen growth inhibitor, with different concentrations of indole-3-acetic acid (IAA) results in the recovery of normal pollen development of Arabidopsis thaliana. Treatment with 100 microM AA plus 5 mM IAA significantly induced the normal seed production. Treatment with 100 microM N-1-naphthylphthalamic acid (NPA), a polar auxin transport inhibit...

Two-year study on the pollination ecology of Eremurus inderiensis reveals that the florescence of eremurus is from the middle ten days of May to the first ten years of June, anthesis of a single flower lasts one day. When the weather is rainy and the highest temperature is less than 20 centigrade, anthesis of a single flower can last two days. Pollen dispersal period of single flower can last f...

low seed yield is a limiting factor for cross breeding and hybrid seed production in cyclamen. this study was performed to investigate pollen germination and its relation to cross-pollination success and fruit set in this plant. in order to achieve a high level of pollen germination, the effect of different concentrations of chemical compounds were examined on in vitro pollen germination of cyc...

 In 2007 and 2008, the influence of pollen source on the shell and kernel traits of resulting seeds and on fruit set was examined to evaluate the potential for Xenia or Metaxenia in Persian walnut. Pistillate flowers of ‘Jamal’, ‘Chandler’, ‘Hartley’ and ‘Pedro’ were crossed with the pollen of ‘Serr’, ‘Z60’ and ‘Damavand’. The pistillate flowers on each female parent were covered about one week...