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agriculture (48)

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1950s: UNITED STATES: flowers in sunshine. Schematic drawing of pistils in flower. Stamen in flower. Pollen transfer in flowers
1950s: UNITED STATES: flowers in sunshine. Schematic drawing of pistils in flower. Stamen in flower. Pollen transfer in flowers

1950s: UNITED STATES: flowers in sunshine. Schematic drawing of pistils in flower. Stamen in flower. Pollen transfer in flowers

1950s: UNITED STATES: fertilised flowers on tomato plant. Tomatoes on vine. Boy sits in garden. Boy looks at blossom on tree.
1950s: UNITED STATES: fertilised flowers on tomato plant. Tomatoes on vine. Boy sits in garden. Boy looks at blossom on tree.

1950s: UNITED STATES: fertilised flowers on tomato plant. Tomatoes on vine. Boy sits in garden. Boy looks at blossom on tree.

1950s: UNITED STATES: hand holds flower. Finger points to sepals
1950s: UNITED STATES: hand holds flower. Finger points to sepals

1950s: UNITED STATES: hand holds flower. Finger points to sepals

1950s: UNITED STATES: pencil points at pistuls on plant. Stamens in plant. Dark purple pollen in tulip. Corn stamens.
1950s: UNITED STATES: pencil points at pistuls on plant. Stamens in plant. Dark purple pollen in tulip. Corn stamens.

1950s: UNITED STATES: pencil points at pistuls on plant. Stamens in plant. Dark purple pollen in tulip. Corn stamens.

1950s: UNITED STATES: tassels on plant. Tiny flowers on clover blossom. Composite flower title
1950s: UNITED STATES: tassels on plant. Tiny flowers on clover blossom. Composite flower title

1950s: UNITED STATES: tassels on plant. Tiny flowers on clover blossom. Composite flower title

1950s: UNITED STATES: daisy as an example of a composite flower. Tweezers by flower. Flower flows in breeze
1950s: UNITED STATES: daisy as an example of a composite flower. Tweezers by flower. Flower flows in breeze

1950s: UNITED STATES: daisy as an example of a composite flower. Tweezers by flower. Flower flows in breeze

1950s: UNITED STATES: apple lands on ground. Schematic of flower and parts
1950s: UNITED STATES: apple lands on ground. Schematic of flower and parts

1950s: UNITED STATES: apple lands on ground. Schematic of flower and parts

1950s: UNITED STATES: bee on flower. Bee carries pollen. Drawing of pollen grains. Sunflower with bee.
1950s: UNITED STATES: bee on flower. Bee carries pollen. Drawing of pollen grains. Sunflower with bee.

1950s: UNITED STATES: bee on flower. Bee carries pollen. Drawing of pollen grains. Sunflower with bee.

1950s: UNITED STATES: girl looks at flowers in garden. Tulip plant in ground. Hand holds tulip stem.
1950s: UNITED STATES: girl looks at flowers in garden. Tulip plant in ground. Hand holds tulip stem.

1950s: UNITED STATES: girl looks at flowers in garden. Tulip plant in ground. Hand holds tulip stem.

1950s: UNITED STATES: drawing of pistils of flower. Pollen arrives at ovule during plant fertilization
1950s: UNITED STATES: drawing of pistils of flower. Pollen arrives at ovule during plant fertilization

1950s: UNITED STATES: drawing of pistils of flower. Pollen arrives at ovule during plant fertilization