cheesmanii x martian giant

Minnesota Mato · August 21, 2011

I crossed a cheesmanii with a martian giant in hopes to get a larger fruited tomato with a high beta-carotene content. the F1 gen was slightly larger then the cheesmanii and red. This spring I planted 45 F2 gen plants and am getting slightly bigger fruit with a few variations. As the fruits ripen I mark each plant as to its color, red or orange. With almost all plants accounted for 50% are red and 50% are orange. If red is dominant shouldn't 75% of the plants be red and 25% be orange? how many genes control color in tomatoes ? Also how many generations does it usually take to recover some good size if one parent was pretty small?
craig

August 21, 2011	#1
Minnesota Mato Tomatovillian™ Join Date: Aug 2011 Location: minnesota Posts: 175	cheesmanii x martian giant I crossed a cheesmanii with a martian giant in hopes to get a larger fruited tomato with a high beta-carotene content. the F1 gen was slightly larger then the cheesmanii and red. This spring I planted 45 F2 gen plants and am getting slightly bigger fruit with a few variations. As the fruits ripen I mark each plant as to its color, red or orange. With almost all plants accounted for 50% are red and 50% are orange. If red is dominant shouldn't 75% of the plants be red and 25% be orange? how many genes control color in tomatoes ? Also how many generations does it usually take to recover some good size if one parent was pretty small? craig