hyper tendril peas

[keen101 (Biolumo / Andrew B.)]

I've been doing some research, and just thought I'd let anyone who is interested in the hyper-tendril trait discovered by Alan Kapuler, that i think it is the same as other types of peas often referred to as "leafless" or "semi-leafless" peas.

I started doing the research after remembering that when i was little we grew peas one year, and i remembered they had a huge tangle of tendrils. At the time i thought that most peas were like that, and thought noting of it. I don't remember what variety we grew, but i think my mom ordered them as being described as being self-supporting type peas.

I think peas such as Markana, Novella, Canoe which are described as being "leafless" or "semi-leafless" are in fact hyper tendril types. I was reading that the trait was bred into them from a wild-type relative, but who knows for sure. I find it interesting that Alan found the trait by breeding the Parsley pea with another pea.

Aladdin
Northfield
Kaspa
Yarrum
Moonlight
Snowpeak

[keen101 (Biolumo / Andrew B.)]

found more info today. Apparently hyper-tendrils are also called semi-leafless, but are also called "aflia".

data.jic.bbsrc.ac.uk/cgi-bin/pgene/default.asp?ID=27

found a few more varieties too.

Tacoma Afilia
Estancia

what's also interesting is that Parsley Peas have the hyper-tendrils "af" , but also the leaflet gene "tl". An af tl double mutant, which results in a “parsley leaf”. data.jic.bbsrc.ac.uk/cgi-bin/pgene/default.asp?ID=669

[12540dumont]

Keen, My Alan Kapuler Peas are dry and ready to send. PM your address and I'll send you off an envelope of the Sugar Magnolias.

Holly

[ianpearson]

My experience of a couple of varieties of semi-leafless is that they are low yielding. Presumably the plant makes more tendrils at the expense of leaf surface. With the reduced ability to photosynthesize, it should not a surprise that the plants will be less vigorous and productive.

[Anton]

In Finland peas are a fairly common field crop, and the modern cultivars grown by farmers all have the afila/semi-leafless growth habit.

I guess dried soup peas is a product that isn't commonly available in most countries, but here you can buy them in all grocery stores. If you plant those seeds you will get afila-type plants.

Here is a fairly interesting document on the subject I found: www.kielpinski.eu/Dokumenty/pdf3.pdf

[keen101 (Biolumo / Andrew B.)]

Aug 2, 2011 16:26:57 GMT -5 Anton said:

Here is a fairly interesting document on the subject I found: www.kielpinski.eu/Dokumenty/pdf3.pdf

Your right, that was a very interesting document! According to that semi-leafless or hyper-tendriled peas have higher yield due to more light penetration during pod set. Opposite of what one would expect from a plant with less leaves!

[templeton]

Keen,
thanks for bumping this thread, I had missed it. Nice paper. It's interesting that the yield of af peas is only greater than normal peas when field harvested - ie, allowed to lodge. When trellised the af plants produce less.

Since I'm breeding edible podded peas, I wonder what happens to pod yield, rather than dry seed weight?

Nonetheless, I'm going to continue - I think the (theoretical) disease advantages might be worth it. Also, since i'm intending for pods to be hand harvested, pod detection should be easier in an af plant.

Are snow peas machine harvested commercially? I imagine they are, but haven't actually investigated it.
T