Pollen Grains: The containers for male gametophytes of seed plants produced in a microsporangium by meiosis. Microspores produced by seed plants that contain the male gametophyte.

 

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Pollen Grains: The containers for male gametophytes of seed plants produced in a microsporangium by meiosis. Microspores produced by seed plants that contain the male gametophyte.

Grains: Exposed and developed silver halides which have formed black metallic silver grains, producing the visible photographic image.

Snow Grains: Frozen precipitation in the form of very small, white, opaque grains of ice. The solid equivalent of drizzle. It is reported as 'SG' in an observation and on the METAR.

Muscat Blanc À Petit Grains: (See Muscat above).

Pollen Tube: Structure produced by the tube nucleus in the pollen grain through which the sperm nucleus (or nuclei in angiosperms) proceed to travel through to reach the egg.

International Grains Council (IGC): An intergovernmental forum responsible for administering the International Grains Agreement (IGA).

High Moisture Feed Grains: Corn and grain sorghum must have moisture content below CCC standards in order to qualify for marketing assistance loans. However, the FAIR Act of 1996 makes recourse loans available to prod . . . View Full Definition

International Grains Agreement (IGA): Replaced the International Wheat Agreement in 1995. The IGA comprises a Grains Trade Convention (GTC) and a Food Aid Convention (FAC). The IGA is administered by the International Grains Cou . . . View Full Definition

Style: Part of the female reproductive structure in the carpel of a fiower; formed from the ovary wall. The tip of the style carries the stigma to which pollen grains attach. Part of the pistil tha . . . View Full Definition

Stigma: Part of the female reproductive structure of the carpel of a fiower; the sticky surface at the tip of the style to which pollen grains attach. The receptive surface of the pistil (of the flo . . . View Full Definition