Thanks to everyone for the information that you have so generously provided.Due to my circumstance of growing , I can only grow for about 8 months a year and I have no ability to keep a clone mother, therefore I am forced to have to start each new season's crop from seed.Most years ,my male to female ratio follows the normal line ,but occasionally I have a batch of seeds that only produces one or two females,therefore the basis of my original question. Normally I grow from September thru April.