help please! w/ pics

hi, im running a cupboard gro atm and have just begun the flowering light cycle. i need help on two things, the lower fan leaves and tips of the top leaves have yellowed recently, i have tried removing some of the lower leaves as they would not have recovered but the next lowest leaves then yellow... also could do with help sexing i think i have the right idea but not sure if its too soon to tell.

these first two show the yellow leaves and tips.
http://aycu40.webshots.com/image/369...8898824_rs.jpg
http://aycu39.webshots.com/image/397...1891384_rs.jpg

this is one that i think is female, because of the white pistils on the higher node.
http://aycu07.webshots.com/image/364...3650573_rs.jpg

and this is one im starting to think is male but not sure if it is too soon to tell?
http://aycu37.webshots.com/image/387...5024120_rs.jpg

any help or clarification would be much appreciated!

Don't remove leaves that are less than 50% dead. The plant takes nutrients out of dying leaves.
Looks like a VERY mild fertilzer burn; back off on ferts slightly. Those plants look pretty healthy.

ok thanks ill remember that, how long does fertiliser burn take to stop because i havent been giving them any for the last week and a half as i ran out... the yellowing started b4 i stopped ferting and has continued since, which is why i was confused! also du think im right bout the sexing or is it too soon? theyve only been on 12/12 light cycle for four days now. thanks for your help.

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this is one that i think is female, because of the white pistils on the higher node.
http://aycu07.webshots.com/image/364...3650573_rs.jpg

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im surprised u got hairs in 4 days, but maybe she was ready to switch.
i agree, prolly fem.

let the yellows drop, or, if they give up with a "light tug" take em.
dont yank the crap outta them.

i have been livin with yellows for weeks. dont sweat it. its part of the transistion. seriously, look at my log, i got yellows for weeks.
DO NOT forcefully take them early, it will slow your cycle.
and i know what a slow cycle is like, fawkin Thai, dammit.

burn doesnt really "heal", i believe leaf affected will not repair.
i would give straight water to flush out for a week or 2.
also keep in mind, the flower cycle will make yellows as she changes attention to making flowers, not leaf.

and make sure ur usin flower ferts at this stage.

the possible male, pic is too fuzzy and maybe too early.
get some Reverse and spray em if its a possible hermie.

my nickel worth

have a good grow.