Amorphophallus-Forum.de

Hi IG fans,.

I find a large bulb to get the reports in the Forum simply super interesting. For me,'s only moderately work which is why I've started to suspect the light. I mean a few years to have observed, that the plants start well, then take a break and until August really start growing early/mid. Then, the day is somewhat shorter. Unfortunately, the phase is very short.

I have can find no information with Google how much hours light the plant (IG) needs to grow optimally, but tropical species want to but a shorter day than our native plants? Perhaps range 13.14 h from?
Now it is unfortunately to late a try to start, or similar on a plant regularly make i.e. a barrel and with one that gets normal daylight, compare.
But maybe someone has tried already and can report?

Greeting Olvi

Hello Oldi,

@ Day length:
Sounds are interesting, we can then compare our results because I think also about a trial with short day length. I'll take probably Cormels or smaller tubers so that the plants are not as big and thus easier to the cover are. Young plants produce more leaves, but I hope that they otherwise similar to react to the amount of light as larger/older plants do it.

@ Factor heat:
I have several IGs in the garden and therefore do not have a single leaf records how long green or is ok. A normal year the plants keep all the sheets until the autumn. This summer just one tree has lost a hand, it is still off, is yellow, has shrunk, and is no longer ok. It is the first and it came in May. The weather was why it had Brown areas pushing out cold and rainy and the shaft is shorter than on the sheet No. 2.

Last night I have my plants (with measuring tape ) watched on. All have three or four leaves. They are different per plant big but the order is different (A plant has a large leaf-1, at plant B sheet 1 is much smaller, and so on). The size may be related with the temperature in the driving, I have not thought about and have not recorded when the leaves are driven out. I have recorded temperatures.

Usually the warmest period of the summer weather is with us in the period of late July to mid-August. If heat is the most important factor, this may be already the explanation for the rapid growth phase in August what I have observed several times. Then there is probably nothing else to do than to buy a greenhouse in order to have a better success with the plant!

@ But there is still something:
Many plants that late start to grow, make usually at the same time two new hands after the second hand. Although the two hands usually come in early August I think not so correctly that the heat is the key factor here. Perhaps there is a relationship between Tuber size and number of sheets?

Greeting Olvi

Hello

I've an IG plant from 20:00 p.m. to 07:00 in the morning covered, so 11 h night. It was not possible for four or five times but that should not influence the final result.
In the below "B" is the plant that was covered. In the pictures, "B" is always right. On weekends, I've evaluated. The plant with the shorter day has become slightly larger. Can just a coincidence it be?
@Oldi: You wanted to try something similar, can you report something?

16.5 Two IG Cormels with a diameter of about 3,5 cm from same mother tuber, used in 3 l pots next to each other.
15.6 "B" is growing somewhat faster than "A".
27.6 "A" is now greater than "B".
11.7 "A" makes the second sheet. "B" has only a leaf and the leaf segments are narrower than "A" s.
26.7 "B" has now longer petioles than "A" and "B" s leaves have become greater than "A" s.
15.8 Begins with the third sheet "A", "B" remains with two leaves.
21.9 "B" has larger leaves than "A".

................................................A..........................B................. Difference
ANZ. Blätter..................................3...........................2
Petiole length (cm)...26, 25, 6.. 47, 40... 80% / 60%
Blade diameter (cm)...35, 30... 50, 40... 43% / 60%
Segment, blade Center (cm)...L = 25, B = 15...L = 28, B=14...12% / 9%
Primary Cormels...10 .........................13.................30 %
Bulb diameter (cm)...7.5 H = 7 cm...8.5 H = 6 cm
Tuber weight (m Brutk).................255g ......................310 g... 21%


Figure 1) 27.6.2013
Fig. 2) 29.7.2013
Fig. 3) 21.9.2013


Greeting Phillip

HM...

How do you delete an image from a post?
Fig. 5 should be another, but I could not delete it?

Many greetings
Phillip