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Tomatoes resistant to late blight8/27/2023 Daily count my blessings that I’m not a production farmer.Īpart from landracing, and thinking about late blight resistance (or any other illness) I believe we should always make a quick notice about our cultivation practises: and thinking about late blight resistance I would ask you: do you fertilize? With manure, compost, or fertilizers (I mean any kind of nitrate rich component)? Or not at all… And… do you till? And: do you cultivate in greenhouse or outside?īecause theoretically it doesn’t help at all with any illness: and I had the practical confirmation of this last year : really too much manure, and my previously giant-super-green tomatoes of june were all gone by mid- july! after just one or two rain episods… I started with about 300 plants, have about 50 alive now. Interestingly most of the survivors are the ones with black skins until they turn ripe and get some red. But unfortunately none of the Lofthouse tomatoes managed to produce even a green tomato. I have a row of the best cherries that survived last year do well again this year (half of them were culled as seedlings before planting due to getting blight), and some of Mark Reed’s sauce tomatoes are doing well, and many of the golden currant cross. I lost 3/4 of my plants completely before any even green tomatoes. I am collecting the seeds but I do not think they are any progress towards my main goal.įor the next year, I will probably have to source better seeds from varieties that have already late blight resistance. Group 2 - despite of really strong infection I was able to save almost all plants and to get at least a few nice fruits from each plant. A few plants that looked dead started new growth just now but they have no chance to develop mature fruits before first frost. Group 1 - no single fruit has made it to the maturity. Group 2 - plants in the kitchen garden, treated “as usually”, that means every second week I was doing foliar spray with either horsetail or hydrogen peroxide, and when blight came, I have treated infected plants with iodine spray. Group 1 - plants in the main crop garden, no late blight prevention, no treating when it hits I have divided my plantings into two groups: The primary goal is to develop landrace resistant to late blight. The season for tomatoes here is slowly coming to the end, and it is time to write a summary of the first year of “landracing”. I sure hope there is at least one seed inside this fruit! Now with Galahad F1 and Purple Zebra F1 we don’t have to struggle quite so much! So I’ll be crossing with both Galahad and Purple Zebra. Most of her scheme was about the lengths needed to get away from the bad flavor of Iron Lady F1. At the time and it wasn’t long ago she proposed using Iron Lady F1. Carol Deppe called on us in one of her books to do this work. Also it makes it possible for us amateur breeders to skip quite a few steps when trying to breed heirloom quality late blight resistant tomatoes ourselves. I admire the work of their breeders a great deal. Purple Zebra F1 along with Galahad F1 are two artisan additions to late blight resistant tomatoes. Purple Zebra F1 is a artisan hybrid with late blight resistance and heirloom flavor. It is Mission Mountain Morning F2 itself Mission Mountain Sunrise x Big Hill HX-9 crossed with Purple Zebra F1. I found the last hand cross of tomatoes I was waiting on made in 2022 ripe today in the greenhouse. Mission Mountain Morning x Purple Zebra F1 and 2 tomatoes making Carol Deppe’s Late Blight Resistant heirlooms dream easier.
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