The creation of a seed

Cannabis is an anemophilous species; this is a fancy way of saying that it is wind-pollinated. Under natural, or wild, conditions, male plants undergo dehiscence (shedding of pollen) and disperse vast quantities of pollen into the wind, The pollen travels on air currents and, by chance, lands on the stigma or style of a nearby, or not so nearby, pistillate individual. This is the pollination event. Because pollen from many species floats in the air, and there is a significant chance that

Scanning electron microscope photo of the inside of a The inside of a seed with half the outer shell seed. removed.

pter SIXTEEN

pollen from other species will land on a fertile stigma of a waiting female plant, cannabis has evolved recognition systems that insure only species-specific pollen is able to germinate on the style and thus fertilize the female's ovules. There is physical and biochemical recognition between the pollen grain and the stigmatic surface; together, these insure species identity.

If the biochemical signal is correct and the stigma recognizes the pollen grain as cannabis, the pollen grain is hydrated by a flow of water from the pistil, and it germinates. Just as a seed germinates and sends a taproot into the soil, the pollen grain germinates and sends a pollen tube into the stigma and burrows toward the ovule. Once the tube reaches the ovary, the genetic material carried within pollen is delivered to the ovule, where it is united with the genetic material from the pistillate plant. This fertilization event occurs and creates what is to become an embryo. This embryo grows within a seed coat, and when

BREEDING

Staminate Flowers

Pollen

Enlarged Pollen Grains

Pollen

Pistil

Enlarged Pollen Grains

Gametes Ovule

Pistillate Calyx

Crains of male pollen slide down female pistils to fertilize the ovule located within the seed bract

Geslachtelijke Voortplanting

Protective outer shell of a seed.

This germinated seed is the result of much selective breeding,

Protective outer shell of a seed.

This germinated seed is the result of much selective breeding,

Yellowish clouds of pollen (ravel many miles to pollinate receptive females,

B4u Pictures Flowers

Yellowish clouds of pollen (ravel many miles to pollinate receptive females, fully mature in four to five weeks, can be planted and will blossom into a new generation of life.

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