(1) As with black Sampson coneflower, propagation by root division is rarely successful, so propagate this species by seed after moist stratification.

(2) Trees can propagate sexually or vegetatively.

(3) Because molds and fungi propagate by means of airborne spores, they can cause respiratory problems.

(4) These factors allow the organism to propagate and acclimate to the host's internal environment.

(5) The bill did not propagate a radical new idea, he said, but one that had existed in various forms for more than a century.

(6) A new technique allows researchers to culture colonies of mouse brain stem cells that can either propagate without differentiating or become normal brain cells at the flip of a genetic switch.

(7) The Internet is a great way to raise money, and you can propagate a message on the Internet, but you can't sell a candidate on the Internet because politics is still intensely personal.

(8) Turning from the very small to the very large, mathematics has also proved useful in understanding how particular tree species propagate across a geographic region.

(9) One of the easiest ways to propagate shrubs is by layering - bending down a branch so it roots directly in the soil.

(10) Many textbooks continue to propagate the myth that symptoms can accurately identify peptic ulcer disease.

(11) He points out that multiple prion-based heritable states can propagate independently within one cell.

(12) You can propagate evergreen shrubs by ground-layering.

(13) It is only when mysteriously united to a body that spirit is brought into relationship with place or extension, and under such a condition alone, and only through such a medium, can it propagate motion.

(14) A hydraulic fracture is generally expected to propagate in a vertical plane

(15) Conventional art history narratives tend to propagate the idea that important art happens elsewhere, either outside Canada or in limited regions within the country.

(16) Let's propagate the idea that citizenship is a responsibility rather than a right.

(17) Likewise, detached roots of untransformed M. sativa (Aragu00d4u00f6u00a3u00d4u00f6u00e9n) plants were able to propagate in vitro.

(18) I dislike theories that propagate the idea of one pole vs. another and indeed the idea that we, as a race, have somewhere to go.

(19) These were monitoring variables like humidity and temperature, information that is invaluable to the horticulturalists attempting to propagate the trees.

(20) Topics covered include the structure and mechanics of plants, how they adapt to the seasons, what roots do and how plants propagate and support themselves.