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youd be better off starting your seedlings under cfls or fluorescents. the increase in transpiration can lead to your plants drying out much better to get less fc on your plants as leaf bleaching can occur with hid lights

cut a 2 liter bottle in half, invert and insert top into bottom half to make a funnel, pour in applecider vinegar. will remove gnats in a week

anytime

Male-associated DNA sequences were analyzed in a dioecious plant, Cannabis sativa L. (family: Moraceae), which is known to have sex chromosomes. hxxp://pcp.oxfordjournals.org/content/36/8/1549.abstract

cannabis is a dioecious plant. in dioecious species, each individual has reproductive units that are either merely male or merely female.

and the fact that studies have shown the environment determines the outcome is further evidence. there have even been studies of how far a seed has traveled and by what ie tree, wind , insect , bird, having an effect on plant sex in dioecious plants

they're rated in life hours a 2 ft t5 ho is 20,000 - 36,000 hours depending on what brand you buy

and honestly iv heard both sides of the coin in regards to environmental effects on plant sex ie alot of people think stress such as bugs mold over watering etc causes males. now none of those things are good especially the pests and mold but over watering once or twice and super cropping will...

ffects of Temperature and Length of Day on the Sex Expression of Monoecious and Dioecious Angiosperms R. G. THOMAS Department of Botany, University College, Nuffield Botanical Research Garden, Nuffield Lodge, London, N.W.1. April 12. IT has been demonstrated1 that production of female flowers...

il try to find what i can about lighting but in the mean time i wanted to help the guy out on what environmental impacts affect male:female ratios. did u find any of the information helpful at all?

i have a doctorate in fecal matters

read the above discussion

Many researchers have suggested that sex in Cannabis is determined or strongly influenced by environmental factors. Schaffner, J. H. 1931. The fluctuation curve of sex reversal in staminate hemp plants induced by photoperiodicity. American Journal of Botany 18(6): 424-430. Ainsworth reviews...

a great way for germinating involves scuffing the seed all the way around with an emery board or sandpaper. dont take off too much so it penetrates the shell. this will decrease the time for the tap root to come out since the abrasions allow water to penetrate more readily. although germinating...

another option is colloidal silver to make feminized seeds if you dont have room for a mother and clones

you're no where near the point where you have too much. of course there is such a thing as too much light it can cause your leaves to bleach actually losing chlorophyll.

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actually a rest period is beneficial whether it be 18/6 or 20/4. the reason being that roots grow faster in the dark. the light period is used for storing energy through photosynthesis and since the plant doesnt need to convert light into chlorophyll at night it can divert its resources towards...

looks amazing. great job