coco

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Cannabis is classically considered a short-day plant, so, by definition, it requires long nights to initiate flowering.
However, recent research in controlled environments argues that flower initiation is independent of photoperiod.

Explains single preflowers being visible prior to flip ?

 

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Development of cannabis plants under different photoperiods. Long day (LD – 18 h/6 h, short day (SD – 12 h/12 h.
A, Plant after 1 week of growth under LD. Bar = 2 cm.
B, Plant after 1 week of growth under SD. Bar = 2 cm.
C, Stem elongation during 30 days of plant growth under LD and SD.
D, Lateral branch length after 30 days of plant growth under LD and SD (measured for branches from node numbers: 1, 5, 10, 15, 20; n = 3–5).
E, Plant after 30 days of growth under LD. Bar = 20 cm.
F, Plant after 30 days of growth under SD. Bar = 10 cm. Significant differences were assessed by unpaired t-test; *, **, ***, ****P ≤ 0.05, 0.01, 0.001, and 0.0001, respectively. Presented data are averages ± SE.

In cannabis propagated from seeds, reproductive development consists of two stages. Following the juvenile-to-adulate transition, solitary axillary flowers are initiated under a long-day photoperiod (LD). This morphogenetic change is governed by internal signals and preceded by dramatic reproduction-related transcriptional changes in flowering-related genes [8, 10, 12].

Later, in adult plants, each of the newly developed phytomers contains a solitary flower regardless of photoperiod length.

Once plants are exposed to a short-day photoperiod (SD), the architecture of female cannabis plants changes, while the basic phytomer structure is maintained [8, 10]. Development of the condensed inflorescence is an outcome of major structural changes in the shoot apex, including intense branching, reduced number of leaflets, and shortening of the petioles and nodes, which result in clustering of the solitary flowers [8, 10].

Hortic Res. 2024 Sep 3;11(11):uhae245. doi: 10.1093/hr/uhae245
Inflorescence development in female cannabis plants is mediated by photoperiod and gibberellin

Some of you familiar with these long flowering kerala types of which coco had provided 3 types
One was collected near Kerala at the source
The other 2 were bag seed collections (grown in Tamil or Kerala )

Maybe coco knows more about these and I should probably ask as we move forward with those
For those interested I have seed pictures and will post more pics as they come available


References

Spitzer-Rimon, B. et al. Non-photoperiodic transition of female cannabis seedlings from juvenile to adult reproductive stage. Plant Reproduction 35, 265–277.
Spitzer-Rimon, B., Duchin, S., Bernstein, N. & Kamenetsky, R. Architecture and Florogenesis in Female Cannabis sativa Plants. Front. Plant Sci. 10, 350 (2019).
Zhang, M., Anderson, S. L., Brym, Z. T. & Pearson, B. J. Photoperiodic Flowering Response of Essential Oil, Grain, and Fiber Hemp (Cannabis sativa L.) Cultivars. Front. Plant Sci. 12, (2021).
Ahrens, A., Llewellyn, D. & Zheng, Y. Is Twelve Hours Really the Optimum Photoperiod for Promoting Flowering in Indoor-Grown Cultivars of Cannabis sativa? Plants (Basel) 12, 2605 (2023).
Ahrens, A., Llewellyn, D. & Zheng, Y. Longer Photoperiod Substantially Increases Indoor-Grown Cannabis Yield and Quality: A Study of Two High-THC Cultivars Grown under 12 h vs. 13 h Days. Plants 13, 433 (2024).
Dowling, C. et al. A FLOWERING LOCUS T ortholog is associated with photoperiod‐insensitive flowering in hemp (Cannabis sativa L.). The Plant Journal 119, 383–403 (2024).

 

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KERALA PROJECT 2020 SEED LOT 1

 

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KERALA PROJECT 2020 SEED LOT 2

 

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This one has potential for a domesticated version
KERALA PROJECT 2020 SEED LOT 1

 

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In 1730 AD, the village of Khejarli near Jodhpur in Rajasthan was the scene of a violent environmental confrontation. Amrita Devi and her three young daughters gave their lives in an attempt to protect some khejri trees which Maharaja Abhay Singh had ordered cut to make way for his new palace. This led to widespread defiance in which 363 people were killed trying to save the trees. In the 1970s, the memory of this sacrifice led to the start of the Chipko movement.

Prosopis cineraria - Wikipedia

en.wikipedia.org

 

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The Kerala of you dreams 2020 Project P1 gen readily drops wild looking seed
4/2 Best >>>