Tulipa 2009

[Boyed]

That’s how I clear the stock from viruses.
I usually destroy (or isolate) infected samples before blooming on the bases of leaf mosaic observed on young leaves. So during blooming there is usually no infected plants left. I do around 7 observations of young leaves starting from the time when tulips show their sprouts until budding.  Infected samples are usually isolated from aphids by covering them by plastic bottles and removed during harvesting, when the bulbs are dormant. When I find infected sample(s) among a corresponding variety, after isolation, I go to the area where the daughter bulbs of this variety planted and immediately find the corresponding infected daughter bulbs (of infected smaple(s)) again due to leaf mosaic in destroy them. Of course, this method is time-consuming, but more effective and reliable as it allows to get rid of virus in short times. Regular method of eliminating infected plants during flowering has some disadvantages. In this case the probability of infection of neighboring plants (growing next to the infected samples) is rather high because virus very often mechanically get into neighbouring plants as well as a result of strong winds, hails or late snow. Besides, daughter bulbs of infected plants are grown in beds until they get matured and during this period they serve as reservoirs for virus.

[Armin]

Zhirair,
phantastic T. biflora with soft pink outside .
And T. aitchinsonii var. clusianoides  Superb!

The Rembrandt tulips are separated ~ 60-70m from the first tulip beds.
They are plantet at the outest possible corner of the HB area.

Very interesting your method(s) for anti-virus treatment.

[Lvandelft]

Zhirair, you have some very nice species Tulipa.

I found some time to resize some more pictures made at Hortus Bulborum.
Here a series of Breeder Tulipa:

Tulipa Breeder Aesculapius [1863]         
Tulipa Breeder Alcida [1916]                 
Tulipa Breeder Alice Keight [1930]               
Tulipa Breeder Cape Town [1954] 1               
Tulipa Breeder Cherbourg 1                     
Tulipa Breeder Cherbourg 2                 
Tulipa Breeder Corinna [1929]           
Tulipa Breeder Fulton                 
Tulipa Breeder Georges Grappe [1939]             
Tulipa Breeder Great Simon   

[Lvandelft]

Two more:

Tulipa Breeder [Eng.] Albert Tears                 
Tulipa Breeder Admiraal Tomp [1932]               

and a few others which Armin did not show.
                 
Tulipa maculata Globosa     
Tulipa passeriana NW                   

[Susan Band]

Don't miss the recent posts on the Travel Giraffe thread for an amazing field of multicoloured Tulips in the wild
Susan

[Sinchets]

Does anyone know if this Tulip is showing signs of viru?. I have never bought one like this before and it is flowering from a bulb, which I can only assume did not look like this last year.

[Boyed]

Simon,
I don't know what tulip it is, but I can assure you that it is absolutely virus-free. I have very detailed article about all the nuances of virus on tulips in my web-site, but it is in Russian so far.

Luit,
Greatest thanks for your photos again. They are just wonderful!!! You're driving me nuts with those breeder tulips. They are just astonishing with their unique colours and are at the top of my interest. 'Cherbourg', 'Georges Grappe', 'Cape Town', all are nice.

I had a talk with Dutch tulip  specialists, who I met here lately about the reasons why they don't grow these tulips for commercial purposes, as they are tall, large-flowered, have high rate of propagation and most of them have good resistance to virus. They just told me, that they don't care much about the beauty and most important for them now the suitability of a tulip for early forcing. So very often highly decorative varieties are substituted with less decorative, but more industrial ones. And another nuance that was mentioned - nowadays tulips with erect (verticall during the period of flowering, not bending) leaves are very valued and it is recommendable that the flower was at the same level with the last leaf or a bit higher. This is very good for packing. Besides, they told me that SLG tulips, even modern varieties gradually leave the market and substituted with robust new triumph earlier blooming tulips, which have the same sizes and vigour as Single Late cultivars. This I noticed along ago, SLGs are offered in the market less and less from year to year.

[Sinchets]

Thank you, Zhirair.
Is then any chance that this could have happened spontaneously from another tulip?The nearest i have growing in this area of the garden are T.sylvestris, T.didieri and T.sarracenia.

[Boyed]

Simon,

I couldn't occur spontaniously from another tulip. Other case, if they grew from seeds, fallen from your tulips and are hybrids.

[Maggi Young]

Can this appearance change be the result of a "sport" 

[Sinchets]

That's what I was wondering Maggi. I never like to be too certain, but I don't think it can be from seed as we haven't been here long enough- and all my Tulip seed was collected and sown in pots as this part of the garden wasn't finished yet.

[Lvandelft]

I had a talk with Dutch tulip  specialists, who I met here lately about the reasons why they don't grow these tulips for commercial purposes, as they are tall, large-flowered, have high rate of propagation and most of them have good resistance to virus. They just told me, that they don't care much about the beauty and most important for them now the suitability of a tulip for early forcing. So very often highly decorative varieties are substituted with less decorative, but more industrial ones. And another nuance that was mentioned - nowadays tulips with erect (verticall during the period of flowering, not bending) leaves are very valued and it is recommendable that the flower was at the same level with the last leaf or a bit higher. This is very good for packing. Besides, they told me that SLG tulips, even modern varieties gradually leave the market and substituted with robust new triumph earlier blooming tulips, which have the same sizes and vigour as Single Late cultivars. This I noticed along ago, SLGs are offered in the market less and less from year to year.

I spoke on Monday with one of them Zhirair. Did you make photographs on your one-day outing with the group?
Would be nice to see something of your "home mountain"

[Boyed]

Maggi,

This could be the result of a sport. But it is very easy to see it, when comparing them to the other tulips grown in the plot. Sports usually attain all the characteristics of mother variety (structure, shape of leaves and flower, blooming time, etc, but are differently coloured, double or fringed or with variegated leaves).

Luit,
yes I made some photos that day in the mountain. This spring was very late and so unfortunately our target plants was not yet in bloom. I also have many photos from our weekend spring 2009 trips. Will try to post the pics soon.

[Rodger Whitlock]

Has Tulipa sprengeri ever been re-discovered in the wild? Or is it still all descended from the single bulb found in a shipment to van Tubergen, collected at an unidentified site?

[Lori S.]

Would anyone care to give an opinion as to whether this might be T. dasystemon or T. urumiensis... I bought bulbs purporting to be each, years ago.  Do I have to dig them up to examine the hairiness of the tunic to tell?  (That apparently distinguishes T. tarda from T. dasystemon, according to Rix and Phillips...)  Does leaf count help?