by MrCym » Wed Dec 04, 2024 7:53 pm
Gary, it's a 3n to 6n that we're specializing in and you asked the question at exactly the right time! Most of my day was spent going through the large plugs that have to go up to 11 cm pots. I was able to compare plant vegetative growth of 6n's, 4n's created by crossing a 6n with a 2n and regular tetraploid X tetraploid plugs. To my eye, there really wasn't any significant difference. There were only a couple of crosses where we had treated a triploid combination with Oryzalin and while the thinner rooted ones (putative triploids) were a bit larger, that is generally the expectation for any triploid crossing. Triploids have become less common for two reasons as far as I believe..... firstly, the productivity of tetraploids have significantly increased while the almost total absence of new, quality diploids precludes serious triploid hybridizing.
Gary, it's a 3n to 6n that we're specializing in and you asked the question at exactly the right time! Most of my day was spent going through the large plugs that have to go up to 11 cm pots. I was able to compare plant vegetative growth of 6n's, 4n's created by crossing a 6n with a 2n and regular tetraploid X tetraploid plugs. To my eye, there really wasn't any significant difference. There were only a couple of crosses where we had treated a triploid combination with Oryzalin and while the thinner rooted ones (putative triploids) were a bit larger, that is generally the expectation for any triploid crossing. Triploids have become less common for two reasons as far as I believe..... firstly, the productivity of tetraploids have significantly increased while the almost total absence of new, quality diploids precludes serious triploid hybridizing.
