FERTILIZATION ABILITY OF MAIZE POLLEN GRAINS. I. POLLEN SOURCES

Fertilization in Pollen Mixtures

many characteristic furnace lines which the spark emits very faintly. An outstanding feature of these lines for the iron spectrum is a prevailing large separation and simple triplet structure. Lines of this class are often of special interest in the study of sun-spot spectra. The furnace offers unique facilities for the production of the inverse Zeeman effect when a plug is placed in the tube. ...

Germination Schedules of Pollen Grains: Implications for Pollen Selection.

Plant Fertilization: Bursting Pollen Tubes!

Higher plants don't have motile sperm; they rely on pollen tubes to deliver them. Recent research has identified key components involved in pollen tube tip bursting that allow sperm release and fertilization.

Effects of pollen sources on fruit characteristics of shahani date

Variation in Pollen Size, Fertilization Ability, and Postfertilization Siring Ability in Erythronium Grandiflorum.

The mean volume of pollen grains and total pollen production varied both within and among plants of Erythronium grandiflorum. The second flowers of two-flowered plants tended to produce smaller and fewer grains than first flowers, but there was no overall relationship between mean pollen grain size and production per flower. I evaluated the effects of pollen size differences within and among pl...