Differences in vitro pollen germination and pollen tube
growth of cotton cultivars in response to high temperature.
The incompatible pollen tube
growth is inhibited at the stigmatic surface (REGO et al.
The smallest pollen tubes
were observed in the M1 medium, and most of the genotypes produced no germinated pollen in this medium.
Pollen was considered to have germinated if the pollen tube
was twice as long as the diameter of the pollen grain (Nyomora et al.
Sometimes, unilateral incompatibility results when pollen tube
in all treatments, the best treatment was one point of 100ppm Date Palm Pollen extract solution+ 2ml of the culture medium, percentage of normal type according to this treatment was 86% compared to control 63.
Polyethylene glycol improves the in vitro growth of Brassica pollen tubes
without loss in germination.
Large number of pollen tubes
was noticed to grow through style during third flash when 3 h aged stigmas were pollinated with 3 h aged pollens.
The students themselves prepare the growth medium and the plates, dissect and manipulate the flower organs, and see how the pollen tubes
penetrate the female pistil.
Staining pollen tubes
in the styles of cereals with cotton blue: fixation by ethanol-lactic acid for an enhanced differentiation.
Following pollination, the pollen grain germinates and produces a pollen tube
, which delivers the sperm directly to the archegonium.
Martin FW (1959) Staining and observing pollen tubes
in the style by means of fluorescence.