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Friday, April 5, 2013

Home Made Chilli Sauce

Who would have thought there would be seed Saving in April. Here, there is some seed saving every month when you include the squash which are seeded as we eat them. This morning's seed saving exercise was the last of the Bolivian Hairy chillies. This is a different species of chilli than the normal ones, Capiscum pubesens, which means hairy chill. The chillies themselves are are hairless but the leaves and stems are covered by a layer of fine hairs which may account for their hardiness. These chillies have been ripening away on leafy plants all winter. The recent frosts knocked them back a bit but they are trying to leaf out again, which hopefully means I won't need to sow them again.


Actually I have tons of seed as they are the most prolific chillies I have ever grown. Perhaps there will be a world shortage of chilli seeds, if so and you have just found this blog, here is where you can buy them. http://www.brownenvelopeseeds.com/product-p/bolivian-hairy-chilli.htm



Now that the seeds are all poked out I am going to make a fermented chilli sauce with them. I will liquidise the flesh with a little water, add a teaspoon of salt and a teaspoon of sugar, put them in a jar to ferment. If I had a bit of saurkraut juice I would add that instead of water.



I usually use a corked mustard jar and a fermentation lock for the fermentation, which takes about 3 weeks. Then I strain off the liquid in a sieve, and store it in an old tamari bottle. As you can see from the dwindling supply in the bottle, we will be suffering chilli withdrawals before it is ready.


When I liquidised the chillies I realised they would never fit in the mustard jar, so I have put them in a Kilner type jar.


I hope it doesn't explode, I will try and remember to release the pressure every couple of days.



My neighbour Jan says chilli is the only addictive substance that doesn't do you any harm. Does anybody know if that is true?

Thursday, April 4, 2013

Hot Bed

The mornings start off calm these days, but the cold north easterly wind starts to pick up during the day and puts me off outdoor jobs. The tomato and pepper plants need potting on and its just too cold to take them out of the propagator. We had another frost this morning.

So, I have built a hot bed in the tunnel. Using a couple of off-cuts of Kingspan roof, a couple of Green Party posters and some old boards, I have made a box. Inside I have layered bad silage and fresh manure from the shed. I need to make some kind of lid now and wait for it to warm up. 


Wednesday, April 3, 2013

Overwintering Lettuce for market or for seed.

We didn't get any lettuce seed last year, mostly because we lost the plastic off the tunnel the year before, and didn't over-winter it. So, it was sown in the spring, flowered during the soggy season, and succumbed to fungus. 


Last September I sowed again. Its a good time tow sow lettuce, because you can plant out in a polytunnel as the tomatoes are cleared out, and have a fine early crop from February to April. Then you can start again with the tomatoes and cucumbers.




The seedlings were planted out in October.


At end of January they were looking pretty good, partly because the weather was pretty mild. These three are Grand Rapids, Crispmint and Ear of the Devil.



The Wonder of Four Season, below, were ready to cut during February and already gone over by the end of March, when this picture was taken. 


The Outregious produced the biggest heads of loose leaves that would have been great in salad bags.  Outregious was bred by Frank Morton of Wild Garden Seeds.




The Crispmint heads are beautiful now and would probably sell well so long as people recognised them as lettuce.


The lettuce below is a baby leaf lettuce called Dane, which I am trying for the first time. I got it in America last year. It has unusual frilly, icebergy kind of leaves that would add a bit of texture to a salad.


Soraya is a butter-head lettuce that I have had for years and kept because it has a lot of disease resistance and successfully produces seed.



Likewise, Cerise, a red salad bowl type lettuce reliably produces seed and is a productive lettuce for the home garden, its not much good for the market as it wilts quickly.

Angustana is a stem lettuce, I haven't really got around to eating the stems. If they get to that stage I usually leave them to seed but maybe I should try this time. The leaves are good to eat too, and this one is a bit small because I raided it for leaves.

For some reason most of the Optimas and Little Gems died,  I have never had much success with them for seed, unfortunately, because I love Little Gem and so do many of my customers. Optima is an unusually fleshy leaved butter-head, with really dark green leaves, that I have tried to get seeds of several times and failed. I didn't take a picture of the Little Leprachaun or the Ear of the Devil lettuces, maybe another day. 


Monday, April 1, 2013

Well here goes....

I am going to take up The The NewFarmerette's Challenge and write a blog a day for April. I probably start one in my head everyday anyway. One that has started in my had several times and never got any further is to say that Mike is no longer working at Brown Envelope Seeds. For the last four years he has worked with me, and been very badly paid for all his help. In spite of this the business cannot support both of us, and so, sadly, I am doing it on my own again. Sometimes we worked well together and sometimes we didn't. Living and working together is a challenge, and trying to keep any kind of business together at the moment is really hard.  I  want to say is thank you to Mike for all he has done for Brown Envelope Seeds and good luck with what ever he decides to do next. I could just say to him, couldn't I?

Masters degree in Organic Horticulture in Lissard

I was delighted to be invited to the presentation of  Belling awards to two students at the UCC run Masters degree in Organic Horticulture in Lissard, last week.
Kitty Scully and Michael are two of the fifteen students who have almost finished the taught part of their course, and are now embarking on research projects.

According to its website the course aims to:

 "The aim of this programme is to provide students with both the scientific principles and the practical applications of organic horticulture, the growing of vegetable, fruit, herb and flower crops in a sustainable environmentally protective manner. A strong scientific foundation to organic horticulture is provided to help students apply their practical knowledge; for example, an understanding of plant form and function helps one to identify crops which grow synergistically together in inter-crops, a mainstay of organic horticulture, producing better yields together than separately. Graduates will receive training in practical organic growing, both open ground and in polytunnels, from experts in the subject, from how to select your own crop varieties to how to erect a poly tunnel, for example. Because one of the factors holding back organic production in Ireland is the lack of targeted research appropriate to this country, emphasis will be placed on graduates being able to test new methods, cultivars etc. in a scientifically rigorous way, leading to a body of research knowledge from this programme of value to Irish growers"

West Cork which is renowned for its 'artisan' producers.  The reason this area has so many such producers, seems to be because small farms in West Cork, deemed unviable between the 1960's and 1980's, came on the market and were bought by 'hippies' and 'blow-ins' who, along with Irish farmers, who married 'hippies' and 'blow-ins' have been the drivers of the artisan food movement in the area. The main winner of the Belling artisan food award last year, Veronica Steel of Mileens cheese and her husband Norman started making cheese in 1978, way out on the Beara.  Millens cheese and many of the cheeses that came after it  have had a close association with the UCC's Dairy Science faculty. West Cork cheeses have inspired farm house cheeses all over the country in the last thirty odd years, and it would be great if horticultural projects here could be models for other places.

I do hope the research carried out by the students will be appropriate to local growers, as we are all struggling to make a living. It is sad that probably our youngest organic producer Eric has emigrated to Canada because he can't make a good enough living. Most organic producers I know, are over 50, and most of them have some other form of income, as well as growing. There are lots of young people who would like to make a living from the land. The popularity of horticultural courses in Skibbereen, in Rossa college, and the Sutherland centre, the new horticulture degree course in CIT, which is run in conjuction with Teagasc, at Dararagh in Clonakilty,  and the Permaculture design course in Kinsale clearly demonstrate this.

There are a lot of limiting factors to making a living out of organic production, the lack of research being only one of them.

Two important ones are the quality of land on organic farms and the size of the local market.  Many organic growers have not come from a farming background, and bought land before they knew much about growing. Poor land makes it very hard work to make a living, but it has made some great growers. There isn't a huge market for fresh vegetables in West Cork, as the population is quite small. We tried having a co-op and sending stuff to Cork city, but that ended badly. The small size of the local market and the inaccessibility to a larger one means that organic producers are not highly mechanised. A mechanical potato or carrot harvester, or a cold store for roots, or an onion drying facility is uneconomical for a small grower. Mechanisation and scale limit local growers and keep prices high. It just about works out profitable to dig early potatoes by hand for the summer market, but local organic growers cannot compete on price, with large mechanised growers, for winter potatoes, carrots and onions. That is why they produce things like salads, which have a short shelf life and a high price.

Flower fruit and herb production have only been carried out on a very small scale, in west Cork as the market for these things, in the area, is even smaller than that of vegetables. They are crops with a short shelf life, or crops that to be economical need to be done on a large scale, mechanized, and transported to an area of larger population.

My question is: why do so many people want to learn to grow food, when it is really hard to make a living doing so?


Tuesday, September 11, 2012

independently funded articles on GM potatoes

http://www.biofortified.org/genera/studies-for-genera/independent-funding/ is a list of 126 articles on GM foods, apparently independently funded. 10 contain potato in the title.


Only two involved feeding potatoes to animals:

Ewen SWB, Pusztai A (1999) concluded that it made the rats sick. 

Rhee, G.S., Cho, D.H., Won, Y.H., Seok, J.H., Kim, S.S., Kwack, S.J., Lee, R.D., Chae, S.Y., Kim, J.W., Lee, B.M., Park, K.L., Choi, K.S., 2005.  concluded that the rats were fine.   I could not find the complete article
online.


Kuiper HA, Hub P J M Noteborn, and ACM Peijnenburg. 1999 Adequacy of methods for testing the safety of genetically modified foods. Lancet 354:1315-6. This paper suggests  Arpad Pusztai's research was flawed.

I can't find this on the internet but would be interested to read it. 


http://www.ncbi.nlm.nih.gov/sites/pubmed/18320254  assesses the bioavailability of carotenoids in GM potatoes, and involves subjects eating 1100g of potatoes on two occasions a week apart. This may have been enough to assess its bioavailability but it does nothing to assess its safety as a food.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1242293/?tool=pubmed  describes mass spectrophotometer fingerprinting of GM and non GM potatoes but does not include any feeding trials.

Defernez M, Gunning YM, Parr AJ, Shepherd LV, Davies HV, Colquhoun IJ. (2004) J Agric Food Chem. 2004 Oct 6;52(20):6075-85. NMR and HPLC-UV profiling of potatoes with genetic modifications to metabolic pathways. describes differences in metabolites in various GM and non GM cultivars. It finds differences but said they did not appear important, again no testing on animals.

Enot DP Manfred Beckmann, David Overy, and John Draper (2006) Predicting interpretability of metabolome models based on behavior, putative identity, and biological relevance of explanatory signals PNAS October 3, 2006 vol. 103(40): 14865–14870 How to work out whether plants have substantially equivalent metabolite content, including an analysis of transgenic potatoes. another metabolite fingerprinting exercise, without actually testing any of the potatoes on animals or humans.


Next is: Lehesranta,Satu J., Howard V. Davies, Louise V.T. Shepherd, Naoise Nunan, Jim W. McNicol, Seppo Auriola, Kaisa M. Koistinen, Soile Suomalainen, Harri I. Kokko and Sirpa O. Kärenlampi. 2005. Comparison of Tuber Proteomes of Potato Varieties, Landraces, and Geneticallyn Modified Lines. Plant Physiology 138:1690-1699.

it has a lot of information about proteomes and the differences between varieties both GM and other wise but no conclusions about how safe they are to eat. 

The eighth is Rhee, G.S., Cho, D.H., Won, Y.H., Seok, J.H., Kim, S.S., Kwack, S.J., Lee, R.D., Chae, S.Y., Kim, J.W., Lee, B.M., Park, K.L., Choi, K.S., 2005. Multigeneration reproductive and developmental toxicity study of bar gene inserted into genetically modified potato on rats. J. Toxicol. Environ. Health A 68, 2263–2276. 

This paper concluded that the GM potatoes didn't do the rats any harm, but I cannot find the complete paper only the abstract.

Shepherd LV, McNicol JW, Razzo R, Taylor MA, Davies HV (2006). Assessing the potential for unintended effects in genetically modified potatoes perturbed in metabolic and developmental processes. Targeted analysis of key nutrients and anti-nutrients. Transgenic Res. 15(4):409-25. Again I could only find the abstract and it did not refer to the safety or otherwise of eating GM potatoes.


 

Why I don't want Teagasc's GM potato trial to go ahead


At their research facility Oakpark, Teagasc have inserted a Late Blight phytophthera infestans resistance gene into Desiree potatoes and have been growing them in green houses. They now have  permission to trial them outdoors. This blog outlines why I don't want this to happen.
Potato flower showing yellow stamens which produce pollen, surrounding
the green stigma which accepts it, for fertilization of the eggs below.

GM plants are  different to normal ones due to the method of insertion of the GM genes. During normal reproductive behavior, plants arrange their genes, in a specific way. When a gene is inserted by a living vector or a gene gun, there is no control over where the gene is inserted into the chromosome and so it may cause unpredictable changes in the genetics of the plant.  It may change the expression of existing genes, tuning them on or off, it may scramble others, and it may cause the production of new proteins.

Potato berries look like their relative, the tomato. They contain true potato seed (TPS)
Arpad Pusztai who worked in the Rowlett Research Institute, in Scotland, tested GM potatoes, into which a snowdrop lectin gene had been inserted. He fed them to rats, as part of a mixed diet, using unmodified potatoes as a control and also feeding a group of rats on the unmodified potatoes injected with lectin. He reported health issues in the rats eating the GM potatoes but not in the other two groups attributing the problems to the modification process.  Pusztai's and Ewan's peer reviewed results were published in the Lancet in 1999.  There is a good pod cast of Arpad Pusztai being interviewed here  

The potato that Teagasc is working with is the domestic cultivar Desiree, Solanum tuberosum into which they have introduced a gene from a closely related, but different species, Solanum venturii. Because these two species are capable of hybridising naturally they are calling it cysgenic rather than transgenic. What this means is that the gene could be introduced by traditional plant breeding methods. However, it would take longer to breed a commercial cultivar as the progeny would have many of the traits of the wild venturii species, and would have to be back crossed to the domestic potato for several generations to improve it. Desiree is a prolific producer of pollen and seeds. The trial will no doubt be carried out very carefully to ensure that there is no genetic drift from the trial to other potato crops however the GM genes could be transferred several miles by pollen on insects, and the seeds could be transferred by machinery or by people deliberately taking them to grow out themselves.

Members of the potato family, also known as the Night shade, or Solanaceae family contain many poisonous substances.  Potatoes leaves and fruit are poisonous and although potato tubers contain only small amounts of glycosides this can easily change if they are left in the light. It is possible that the GM process could cause the production of some new poison in potatoes either brought from the venturii species or caused by mutations and genetic disruption around the site of the inserted gene. It seems Teagasc have no plans to test for toxicity in the GM potatoes.

The trialling of GM products on animals to assess their safety has largely given results showing that the animals didn't suffer. Some are reviewed here. Of the 42 reviewed here, only two showed negative results. However both were in potatoes. One of the worrying things about modern scientific research is how much of it is funded by industry. The fact that Puzstai's contract was not renewed after he found problems with GM potatoes,  and said on television that he wouldn't like to eat them, (he was working for the British government) makes me wonder who would fund unbiased research, or allow publication of negative results.

Contamination of Non GM crops is inevitable once they are released to the public. In their own trial Teagasc showed that Desiree pollen travelled over 20m, carried by a beetle. They did this by planting Desiree potatoes surrounded by Golden wonder potatoes. As Golden Wonder potatoes are male sterile they do not produce berries unless they receive pollen from another cultivar. They found a small amount of viable seed on the Golden wonder potatoes, more than 20 away from the Desiree potatoes.

Seedlings from true potato seed do not all germinate in the second year. Unless great care is taken seedlings and their tubers could contaminate other potatoes. They might look identical to the original Desiree and could only be found using expensive tests. If Teagasc had chosen a male sterile variety such as Golden the risk would be considerably reduced.  If released this GM potato could cause invisible contamination of visually similar, non GM potato varieties.

Potato seedlings emerging under beans, in
my garden, two years after potatoes were grown there



On their website Teagasc refer to the fact that cysgenisis is being considered for exclusion from the scope of GMO legislation, by the European Commission. This would mean that  no license would need to be applied for for GM crops where the inserted genes were from a close relative.

Another piece of information on Teagasc's website is the fact that BASF has applied to the European Food Safety Authority for a license to market a GM late blight resisitant potato  and another GMO potato 'Amflora' has already been licensed. Amflora was developed for industrial starch production and not for human consumption. If the GM blight resistant cultivar were introduced here, it would be easier to introduce the industrial varieties and other GM crop species. Once GM crops have been introduced to Irish farms it will be impossible to prevent genetic drift into non GM varieties. It will be particularly difficult to control if wind pollinated crops such as sugar beet and maize are introduced. Bee pollinated rape seed will also be impossible to contain as it will become a roadside weed as it is in North America. This will compromise organic farming, which prohibits the use of GM crops. 

The apparent ease with which blight resistance can be introduced to potatoes is very attractive. Late Blight has become an increasing problem,  since it began to reproduce sexually in Europe.  The potato is the best producer of food per acre in terms of calories that we can grow in this climate. New potato cultivars are loosing their resistance quickly as the blight organism evolves. However introducing one gene by genetic engineering is unlikely to produce a lasting resistance. It is by growing genetically diverse strains of potatoes in a landscape of different crop species, that the best protection from evolving blight and other diseases is most likely to be found, in other words in genetic biodiversity. 

Breeding potatoes for blight resistance using traditional plant breeding methods is quite successful. Some of the most resistant varieties, that have cropped well here inspite of four bad summers in a row have come from Sarvri Trust. The Sarvri family have been breeding blight resistant potatoes, in Hungary for over 40 years, using traditional plant breeding methods, to transfer blight resistant genes from wild potato species to the domestic type. The Sarvari trust in Wales took up the work of the Sarvari family in 2002, preparing selected cultivars for commercialisation. Many of us have been growing Sarpo potatoes for years and have appreciated their blight resistance during the recent bad summers.  The future of the trust is now in doubt and its director David Shaw said at its open day that as little as £100,000 could make all the difference. You can listen to an interview with David Shaw here

In Ireland the organisation Spuds is organising trials of Sarvari Trust potatoes by volunteers. Here Nike Ruf is interviewed about the project. 

The consolidation of the seed industry is shown diagrammatically below. Three major chemical companies own or control most of the seed companies. This consolidation has happened in the last 40 years or so and has gone hand in hand with the reduction in available crop varieties. The introduction of  regulations for seed production, originally inteded to protect farmers form badly behaved seed companies now threatens agricultural biodiversity. As the seed industry consolidates the number of available varieties of seeds is reduced, especially  varieties that perform well without chemical inputs.