True Morus Nigra Mulberry

Good to hear!

@Outsidetoday
There are two main events that led to the mislabeling of Morus cultivars as M. nigra.

  1. A couple decades ago, the USDA repository for Morus received specimens labeled M. nigra. These were distributed to several individuals and nurseries. Some of the receivers had doubts about the species. The USDA then checked the ploidy of their specimens and relabeled them. However, not all of the original receivers updated their labels.
  2. Around the same period, a few sellers of fruiting plants began promoting M. nigra. This developed into a fad and a number of unscrupulous sellers began labeling any black-fruited mulberry on hand as M. nigra. This trend continues today.

In my location, I prefer the fruit of M. macroura ā€œPakistanā€ over those of true M. nigra’s.

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I may prefer the Pakistan too, but probably only because it is more fruitful and easier to pick and eat and much larger and the tree is more vigorous. The flavor of nigra is stronger and more striking.

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That’s an interesting but frustrating history. I did get one of those falsely labeled ones a few years ago:(

I’d like a M. macroura as well, among other things, but my grow area is getting tight. I have only had some red mulberry to eat myself. I have ordered a variety of cuttings and also got a starter plant of local red that does well here. I’m looking to graft.

Here in Vista CA, M. nigra on M. alba rootstock rapidly becomes a large tree.

True. I like it also, in fact better than some blackberries.

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That would be ā€œtridecaploidā€.

And that would be ā€œdocosaploidā€.

I looked them up cause I had to know! haha

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Nice!

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@JohannsGarden

Meiosis in Natural Decosaploid (22x) Morus nigra L.pdf (1.3 MB)

Thank you! I haven’t seen evidence where I am yet, but I know root knot nematode is a big concern with figs here in FL and there are some local red mulberry finds that seem to have resistance. I’m trying to read through the forms on what would suit my area best and appreciate any advice.

Pakistan mulberry has one big advantage over Morus Nigra – shippability. It is a somewhat dry variety that wont crush and bleed everywhere when picked or when packaged for shipping.
For pure flavor I prefer Nigra but it is far more messy.

Burntridge Nursery will be offering Pakistan Mulberry at the Olympia farmer’s market when they are ripe.

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comparing Noir of Spain and Kaester, there are big differences in growth and rooting ability. Kaester is vigorous and grows into a large tree while Noir of Spain remains a small specimen. I haven’t seen NdS grown for more years to confirm. Also, Kaester is probably the only M. Nigra that I know of that can be rooted. I haven’t done that myself but @Marta has a nice comparison on her blog

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Given the M. nigra capacity for meiosis, I’m interested in the karyotype (ploidy) signatures of each.

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Thanks for your response! I did see Marta’s blog and I have visited the Prusch tree numerous times.

So far this year all the grafts are looking similar in vigor. It may change in coming years.

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I remember Harvey (of figaholics) talking about Kaester graft in one of his YouTube videos and that was super vigorous as well. I’m assuming yours will take off soon (compared to others)

If Marta hasn’t determined the karyotype equations of her specimens, I’d like to obtain leaf samples in the coming weeks to include in shipment I’ll be sending to a Cytology lab.

I do have NdS (obtained from Whitman farms and have fruited it to confirm) and live near Emma Prusch, so I can get leaf samples for both varieties. However, I’m out of town until late June. If that’s too late, may be @Marta can help?

That’s about the right time – no firm date yet. I could drive up to get them.

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Both Pakistan and M. nigra Persian are excellent. Pak is very sweet and large with no tartness, Persian is more complex and intense, to me the best fruit one can eat

I don’t have NdS anymore. That was at the previous location of my farming activities. That tree was removed by the owners of the place.

My most vigorous Morus Nigra is Black Beauty. Over a foot of growth from a recent graft already. It’s keeping pace with a nearby DMOR9 graft.
And it’s supposed to be a dwarf variety. I don’t think we can trust descriptions that much anymore. There is too much individual variation.

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