The white colour in marijuana occurs from time to time, as a result of a double recessive gene that determines the absence of chlorophyll or a bad development of the genes that order the production of pigment.
Marijuana needs abundant nitrogen (N), a moderate amount of potassium (K) and a lower proportion of phosphorus (P) in its vegetative growth phase. Less nitrogen, more phosphorus and similar levels of potassium in the flowering phase, to which micronutrients such as calcium (Ca), copper (Cu), boron (B), iron (Fe), manganese (Mn), sulphur (S), molybdenum (Mo), magnesium (Mg) and zinc (Zn) are added to multiply the number and size of your buds.
Discoloration due to light overexposure causes stress in plants, although it usually affects only those parts of the plant that receive light excess. Depigmentation progress can be avoided with the use of fertilizers and light adjustments.
Cannabis plants may have white tones due to light exposure. These varieties are not albino or white, but green plants discolored during growth by an intentional approach or by accident to a light source, such as a high-intensity lamp focus that affects the pigment.
Genetic factors produce a small amount of chlorophyll when the albino plant germinates. On the other hand, in chlorosis, a disease that can disturb our shoots, bleaching is caused by a shortage of nutrients in the subsoil.
The white color in cannabis occurs in nature occasionally, as a consequence of a double recessive gene responsible for the absence of chlorophyll or because of a genetic mutation of the genes involved in pigmentation.
A double recessive gene causes absolutely white plants, although this is extremely rare; and in the second case, the bud or a part of the plant is affected by the mutation. Another possible explanation is the non-conformity between nuclear and chloroplast genomes.
The pigment of white weed seeds
Chlorophyll is the pigment responsible for giving color to plants. Its purpose, however, is more than aesthetic, as it is vital for the photosynthesis process. The chlorophyll of marijuana leaves is responsible for absorbing sunlight, triggering the chemical reaction that enables the plant to generate energy from carbon dioxide (CO₂) and the raw sap derived from water and mineral salts.
White Widow is widely regarded as the queen of the ‘White’ family. She has often been used to form other ‘white strains’ or share genetic material with other ‘white’ varieties. Other denominators are that white strains are covered in trichomes, have a high THC level resulting in a powerful high. Popular white strains include Snow White, White Widow and Amnesia Haze x White Widow.
All types of cannabis, including white strains, are dioecious or unisexual plants, which means that they are capable of producing male and female flowers in various individuals. However, both types of flowers can be found in hermaphrodite plants. You can reduce the risk of males by choosing feminized seeds, and most white strains sold at weedseedexpress.com are feminized seeds.