Drug encyclopedia

Sexual propagation – Pollination Methods Part 4.

admin — Wed, 28 Jul 2010 10:50:39 +0000

This isn’t possible for most cultivators or analysts and they typically depend on imported seeds. These seeds are of unknown parentage, the product of natural selection or of breeding by the first farmer, Certain basic issues affect the genetic pureness and level of predictability of picked up seed. One – If a cannabis sample is heavily [...]

Sexual propagation – Pollination Methods Part 3.

admin — Sat, 24 Jul 2010 10:50:26 +0000

Withered, dark pistils sticking out from distended, resin encrusted calyxes are a signal that the reproductive top has long passed. cannabis plants can be successfully pollinated as quickly as the 1st primordia show pistils and till just before crop, but the biggest yield of uniform, healthy seeds is attained by pollinating in the top floral [...]

Sexual propagation – Pollination Methods Part 2.

admin — Sun, 18 Jul 2010 10:46:06 +0000

Besides the benefits of convenience, the pollen elders mature under the same conditions as the seed elders, so more correctly expressing their phenotypes. Step one in picking up pollen is, naturally, the choice of a staminate or pollen parent. Healthy people with well-developed bunches of flowers are selected. The appearance of the first staminate primordia [...]

Sexual propagation – Pollination Methods Part 1.

admin — Tue, 13 Jul 2010 10:46:04 +0000

Controlled hand pollination is composed of 2 simple steps : picking up pollen from the anthers of the staminate parent and applying pollen to the receptive stigmatic surfaces of the pistillate parent. Both steps are conscientiously con trolled so that no pollen escapes to cause random pollinations. Since cannabis is a wind-pollinated species, enclosures are [...]

Sexual propagation – Controlled vs Random Pollinations of Cannabis.

admin — Fri, 09 Jul 2010 10:46:02 +0000

The seeds with which most cultivators begin represent sundry genotypes even if they spring from the same floral cluster of marijuana, and only a few of these genotypes will prove favorable. Seeds picked up from imported cargos are the results of completely random pollinations among many genotypes. If elimination of pollination was at enticed and [...]

Sexual propagation – Biology of Pollination.

admin — Mon, 05 Jul 2010 10:46:01 +0000

Pollination is the event of pollen landing on a stigmatic surface e. G the pistil, and fertilization is the union of the staminate chromosomes from the pollen with the pistillate chromosomes from the ovule. Pollination starts with dehiscence ( release of pollen ) from staminate flowers. Millions of pollen grains float thru the air on [...]

Sexual propagation – The Life Cycle and Sinsemilla Cultivation.

admin — Thu, 01 Jul 2010 10:45:59 +0000

A wild cannabis plant grows from seed to a seedling, to a prefloral juvenile, to either pollen- or seed-bearing adult, following the common pattern of development and sexual reproduction. Fiber and drug production both meddle with the natural cycle and block the paths of inheritance. Fiber crops are sometimes cropped in the juvenile or prefloral [...]

Sexual Propagation of Cannabis.

admin — Tue, 29 Jun 2010 10:45:58 +0000

Sexual propagation needs the union of staminate pollen and pistillate ovule, the formation of workable seed, and the inception of people with newly recombinant genotypes. Pollen and ovules are formed by reduction divisions ( meiosis ) in which the ten chromosome pairs fail to repeat, so that each one of the 2 daughter-cells contains one [...]

Sexual vs Asexual Propagation of Weed.

admin — Fri, 25 Jun 2010 10:45:56 +0000

Cannabis can be propagated either sexually or asexually. Seeds are the results of sexual propagation. Because sexual propagation involves the recombination of genetic material from 2 folks we are expecting to observe difference among seeds and offspring with traits differing from those of the elders. Vegetative techniques of propagation ( cloning ) like cuttage, layerage, [...]

Life cycle of cannabis – I Juvenile Stage.

admin — Mon, 21 Jun 2010 10:45:52 +0000

Weed flowers when exposed to a critical daylength which varies with the strain. Urgent daylength applies only to plants which do not flower under constant illumination, since those which flower under continuing illumination have no vital daylength. Most strains have a conclusive duty of inductive photoperiods ( short days or long nights ) to prompt [...]