The Ipomoeas belong to the group of short-day plant such as Kalanchoe, Poinsettia, Crab cactus, Cosmos, Salvia.
This opens up many opportunities.
For information on applications with MG, I visit Japanese sites and translations offered by Google give me the headache.
An example made him translate this page and summarize me what is treatment "short day" - how many hours per day and for how long.
Good luck!
http://www.rarf.riken.go.jp/asagao/feed/riken.html
Hi Dany, Even reading the page in Japanese makes little sense to us...LOL
Jon
Correct me if I am wrong, but doesn't Japan basically have the same season times as us? If so, the germinated seeds were photographed on April 21, 2004.
Then 2 paragraphs down, it says that "This short-day conditions (8 am to 9:00 pm until 13 at night time) and put into the climate chamber." I am reading this to say that the plants received sun (?) from 8 am until 9 pm? 13 hours? Or were they in some kind of chamber in the dark to eliminate natural sunlight and then put under a grow-light at night for 11 hours so that they bloom at night? I am confused on what this grower is saying.
What is this all about? Covering the vines with a box to keep them in the dark?
http://www.rarf.riken.go.jp/asagao/breed.html
That's what I try to understand, on different sites I understand they give a night 12 to 17 hours per level for 1 or 2 weeks.
This photo shows how proceed an amateur , ( one plant is Ipomoea Indica) to make it bloom in late fall.
The sun sets around 4 pm and rises at 7.30 am at this time of year here in Japan,
Mid summer sunrise is around 5 am setting at 7.30 pm, this applies to the main Honshu island.
I cant understand 8 am untill nine pm as this day lengh never happens here.
I know my Heavenly Blue vines had a dramatic response to the decrease in daylight after Summer Solstice this year. The flower buds appeared after only two days of decreasing light. However, I was under the impression that decrease in light was one of several things that could trigger flowering. I've heard that stress (pinching off the tips of vines, removing some of the leaves, briefly withholding water) and using a bloom fertilizer can also induce flowering. I also thought that pampering could delay flowering for a time even if the amount of daylight was decreasing. Comments or your own experience?
Yes, I also believe that the stresses make flowering plants.
In fact it is a reflex of survival - they feel die and say at least before I must repeat myself.
Heavently Blue - Ipomoea Tricolor is considered VERY influenced "Short Day".
It tells that if a plant Ip. Tricolor grows in a garden or there is a radiantly irage night even low cycle is disrupted and the flowering will be delayed.
I am tired to seek the true seed of Heavently Blue Clarke's Early Strain, so next year I will submit the Short Day Program has a few plants of Ip. Tricolor to force them to bloom in late June or early July.
But the question I ask myself : is that phenomenon sustainable ?
Basically, I tell a story to the plant - you are no longer in spring you are in summer.
So the plant stops growing and produces flower buds,then I put it in the garden, so it suffers the length of the corresponding day in the spring.
It does not realize that I told him stories?
I just recently found that the decrease in light also produces dwarf versions. A windmill type ipomoea that flowered at the end of August produces a couple of seeds, which I immediately sowed in a pot again. From the seed, a mini version resulted, which has had a flower that I selfed. It did not produce any seeds but it has three more flower buds...I'll try selfing again...
Martin
With Poinsettia it works like this:
You have your poinsettia from last year, it is green and you want it to be a red bract for Christmas.
The short day treatment begins 6 weeks before the fetes.Donc a mid-September (too late for this year!) you put your plant 14 hours of night by 24 hours (per day)
Either you put in the dark from 18 hours in the afternoon until 8 o'clock the next day. And you will have beautiful Christmas Poinsettia.
Here a Japanese website that explains the phenomenon for MG.
If someone understands !!!!!
http://www2.tokai.or.jp/seed/seed/seibutsu4.htm
Poisettia.
I have so many questions about this practice. There is a house around the block from me. The owner planted a bunch of poinesttia in front of her shrubs at the north side of the home. Every January they produce the red foliage and it is stunning. No dark treatment here.
My plants bloomed like crazy with the use of Bloom Booster, but the vines did grow tall. So the Japanese do the short day treatments if the gardener desires to keep the vine small and compact? Is that what short days treatment is used for? Just for vines that are kept compact?
Poinsettia adapt to the light cycle of the region. Only if you want to change the date or he presents his colorful bracts that make him suffer treatment "short day".
Pruning of MG is practiced only for exhibitions. One of the objectives is the size of flowers, some varieties reach 9.45 inch. There are other criteria such as number of flowers, the aesthetics of the plant , the colour etc. .. ..For competitions plants should not undergo treatment "short day".
Undergo treatment "short day" aims to bloom earlier or plants to flower has an unnatural period for them.All the regions of Japan have not long summers and often complain of the unable to produce seeds to Ip. Tricolor, the seeds fail to mature.
Or for example Ipomoea ochracea if it is sown in spring will give its first flowers in December , it's late. Note, wild ipomoea respond to treatment "short day" with more difficulties ; sometimes must be repeated several times.
This photo shows two seedlings on the same day. One was undergoing treatment "short day". Which?
This table is interesting and shows the periods of flowering according to seedlings dates.
4月、5月...corresponds to April, May ...
The small cabinet : 日 is a day.
Seeding ■2004 year April 20th
Kind you did damage with the nail file, 1 evenings you absorbed water in the petri dish which spread the filter paper. On April 21st it planted in the germination private pot in approximately 5 centimeter angle.
Germinating rate ■2004 year April 27th
To plant 100 kinds, because 84 individuals germinated, germinating rate is 84% at present time. Because the stalk of 2 individuals broke to regrettable thing while transplanting, it became 82, but everyone you are brought up vigorously. 88 individuals to exist finally, because 1 individuals died in accident during transplantation job, germinating rate was 89%
Transplantation and bloom induction ■2004 year April 27th
When transplantation and bloom induction (processing = day and night is long shortly, as for the morning glory the flower blooms quickly)
At the week, also about 15 centimeters there are any big things, it is the spirit the leaf may to start opening, but as for any small things there being about only 3 centimeters, the circumstances which even then it has been about to expand Futaba with utmost effort are lovely.
The seedling was transplanted to the pot which is 9 centimeters in diameter which inserted gardening ridging. In order for basis to stabilize, you held down, sprinkled sufficiently. Day condition (13 hours to 9 o'clock in the morning the night) inserted this in the air-conditioned room shortly from 8 o'clock in the afternoon.
Growth ■2004 year May 5th is less crowded and is less crowded
Environment of the air-conditioned room liking, feels very growth quickly. As for the quick child already there are about 25 centimeters are, or… one are good news. The inside one of the children to which the stalk breaks, producing the leaf safely, it grew. The ♪ transplanting to the pot where also this child is large
Support raising and numbering ■2004 year May 11th
The flower bud was attached already in about 20 days.
Each stocks, being quick ones, about 5, slow ones being, as for about one the flower bud has been attached. Because those where also height of the back exceeds 30 centimeters became many, the support raising was done. While it was the pot of 9 centimeters, bamboo [hi] for 3 these barbecue (36 centimeters in length) it raised, stopped on with the wire, made the support of triangular gimlet condition, in clockwise direction, kept winding the chord around helical to there, the necessary place locked lightly with the wire. From those where the back is high you worked in order, the support raising of 72 stocks ended. Remaining 16 stocks the back being low still, as for the support there was no necessity.
Acquiring name to the individual child, the leprosy which goes is the lovely child, but in every plant to No.1 - No.88 number was marked to the bowl with the oily pen.
Child ■2004 year June 18th changes
The beam the child which changes even in the generation who was brought up from the kind which was irradiated appeared. Have the cut in the deep water of the thing and the petal where unevenness enters into the leaf [tsu] [pa] some etc where a thing, some where flower color changes and size of the flower becomes large and/or becomes small there was. Whether this descendant becomes some shape it is the pleasure. Those where shape of the stamen and the pistil changes tried breeding the normal plant. Kind of the following generation started becoming brown.
this is the translation for the web page
I hope that helps
Isn't that great that someone in Japan kept a garden diary for us to read! I wish I could live in Japan one year and learn all their bonsai and container gardening secrets! LOL!
one year hahahah it takes a life time to learn what they know since it has been passed down from one generation to the next some bonsai are over 150 years old, they are very patient people and will keep trying and working at something till they get a good results
I am not that patient
No doubt. Kinda like the Bible. Perhaps that was the MG Bible of Knowledge that has been passed down through so many generations.
You do not need very complicated material.
I like that high technology approach to this technique, Dany! LOL
I searched the MG forum for this topic and came up with some useful information at this link:
http://davesgarden.com/community/forums/t/575043/#post_2032249
Now to pick out a good large flower strain to put the information to use.
Joseph
Dany - Interesting calendar dates. Sounds about right for growing them here in Florida. I believe Japan and FL have similiar climate.
I had to laugh when I saw your nursery/greenhouse photo with the cardboard boxes over some of the seedlings! Hey! Whatever works, right? If it is that simple, then even I can do it! LOL!
Is this method for I. nils? Large flowering I. nils for the JMG flower shows?
Mona - Thanks for the translation. :-)
Joseph, from cotyledon stage or on stage 4 to 5 true leaves?
Incredible I also ordered Q 1044 KU twice hoping also receive Q1044 0001( not the same )
Q1180 is purpurea, so shortly we will know what percentage of flowers are tube reverse.
I only got 2 seeds of 1180 and only 1 germinated and I had to manually peel the seed coat off to free the seedling. I hope the plant thrives and gives us the flowers we long to see!
In reading the literature on short day treatment, I recall the plant is receptive to photoperiod at an early stage of growth. So I will give these seedlings the long dark treatment and see what happens.
Joseph
keep us posted and dont forget the picks please
I did nothing complicated, actually. I used a cardboard box to hold the seedlings and one plant that had quite a few leaves on it, then put a black plastic garbage bag over the entire box and did not remove the plants until 18 hours later. They seemed quite perky in spite of the light exclusion.
I have 2 Ipomoea nil plants at work. They are just sitting in the window facing west. I came back to work today and found every leaf axil had a nice plump flower bud and they did so with no light manipulation! How cool is that?
Joseph
