spacetraveller
Member
This is interesting to me, as i am also working on a project with what i believe is a semi dwarf plant.
Thankyou for supplying the link to the paper on this topic, i have been reading with much fascination.
This plant i am referring too, is a sativa dominant hybrid. Her
genetics are Rays choice by kiwi seeds x (rays choice x golden tiger original by Ace seeds).
I produced these seeds in 2016, and i have grown many in that time. 2 main phenos appear. The rarer is the malawi pheno with clumpy flower clusters, the other is a very narrow leaf variety with more spear shaped colas. Both types however can grow very large and can overwhelm any grower not prepared for the stretch and duration of growth.
Last year a short stature plant showed itself amongst a group i had started. I treated as per normal for these varieties, that is topping the main trunk after the 4th internode pair. Because of her shortness, instead of building a horizontal base for the plant to grow from, i let it grow upwards without further control techniques. She stretched for 9 weeks under 11/13 photoperiod, but only grew to 100 cm tall. Amazing!
In addition to the short stature, other phenotypic traits include reduced thickness of the trunk, branches and twigs. Also increased apparent density of the branches, as they are much more difficult to cut. Other physiological changes are also apparent , including a reduced tolerance for fertilizer, and differences in seed sprouting for the F1 compared to "normal" seeds.
To discover how these traits could be passed onto future generations, i crossed this plant with a pure sativa (malawi x panama f1) from Ace. Of the seeds i sprouted from the crossing, no short stature plants appeared leading me to conclude several possibilities.
1. The trait is an unrepeatable fluke.
2. The trait is controlled by a mutated recessive gene.
3. The trait is controlled by polygenic inheritance.
I selected a male F1 and backcrossed him to the "dwarf" plant anf the f2 seeds are currently developing nicely.
More experiments in a few months!
Pictured is the plant in full flower. 2nd plant is a clone in seed production. 3rd pic is the f1 male i used. After a 5 day veg period, he stretched for 7 weeks under an 11/13 photoperiod, and grew to 140cm in a 3 liter pot.
Thankyou for supplying the link to the paper on this topic, i have been reading with much fascination.
This plant i am referring too, is a sativa dominant hybrid. Her
genetics are Rays choice by kiwi seeds x (rays choice x golden tiger original by Ace seeds).
I produced these seeds in 2016, and i have grown many in that time. 2 main phenos appear. The rarer is the malawi pheno with clumpy flower clusters, the other is a very narrow leaf variety with more spear shaped colas. Both types however can grow very large and can overwhelm any grower not prepared for the stretch and duration of growth.
Last year a short stature plant showed itself amongst a group i had started. I treated as per normal for these varieties, that is topping the main trunk after the 4th internode pair. Because of her shortness, instead of building a horizontal base for the plant to grow from, i let it grow upwards without further control techniques. She stretched for 9 weeks under 11/13 photoperiod, but only grew to 100 cm tall. Amazing!
In addition to the short stature, other phenotypic traits include reduced thickness of the trunk, branches and twigs. Also increased apparent density of the branches, as they are much more difficult to cut. Other physiological changes are also apparent , including a reduced tolerance for fertilizer, and differences in seed sprouting for the F1 compared to "normal" seeds.
To discover how these traits could be passed onto future generations, i crossed this plant with a pure sativa (malawi x panama f1) from Ace. Of the seeds i sprouted from the crossing, no short stature plants appeared leading me to conclude several possibilities.
1. The trait is an unrepeatable fluke.
2. The trait is controlled by a mutated recessive gene.
3. The trait is controlled by polygenic inheritance.
I selected a male F1 and backcrossed him to the "dwarf" plant anf the f2 seeds are currently developing nicely.
More experiments in a few months!
Pictured is the plant in full flower. 2nd plant is a clone in seed production. 3rd pic is the f1 male i used. After a 5 day veg period, he stretched for 7 weeks under an 11/13 photoperiod, and grew to 140cm in a 3 liter pot.
