Feminized seeds Cannabis cultivation
c. indica seeds
environmental stresses create pollen bearing male flowers on female plants—known hermaphroditism or hermying .
a method used organic growers , promulgated cannabis breeder soma, called rodelization , or letting un-pollinated female plants live several weeks longer normal harvest time. in such plants hermaphroditic trait self-expresses in effort continue genetic line.
some vendors of feminized seeds assert hermaphroditic parents not create reliable feminized seeds, since offspring may retain tendency of hermaphrodytism. others believe method utilizing auto-hermaphroditic traits offset grower observations tendency auto-switch sex no greater in plants grown seeds made way, occurs naturally.
colloidal silver (commonly abbreviated cs) suppresses ethylene production in bud sites, stimulating male characteristics. spraying selected leaves, branches and – in cases large amount of seed desired – whole plants colloidal silver solution has become preferred method of obtaining feminized seeds. plants treated cs turn intersex within 2 weeks of triweekly treatment, producing viable pollen within 4. gibberellic acid has been used same purpose, harder acquire colloidal silver , can difficult dissolve solution. 1 method of obtaining colloidal silver utilizes small direct current power supply , 2 pieces of solid silver jeweler s wire, or silver coin.
some cultivators claim genes responsible hermaphroditism present , may expressed under stress of above methods , once expressed, characteristic passes seeds regardless of activated it. view, in large part, incorrect, random half of genes present in each of parental plants passes next generation, regardless of whether genes contribute hermaphroditism induced stressors or not. accepted mendelian model of inheritance (mendelian inheritance) allow genetic mutations have occurred in germline (germline) of organism passed on offspring, process applies dna sequences, not contributing hermaphroditism. inheritance of acquired characteristics (lamarckism) not directly coded in dna sequence (epigenetics) has received attention in area of genetic research , possibly explain anecdotal evidence increased hermaphroditism in offspring of plants induced hermaphroditic state. however, more explanation propagating plants induced hermaphroditism environmental stressors, frequency of genetic elements contributing trait increased artificial selection following traditional genetic models of inheritance. theories suggest possible selectively breed hermaphroditic cannabis express female flowering before male flowering occurs, though kind of selective breeding beyond capabilities of cultivators.
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