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The Complex Interactions Between Flowering Behavior and Fiber Quality in Hemp

Hemp, Cannabis sativa L., is a sustainable multipurpose fiber crop with high nutrient and water use efficiency and with biomass of excellent quality for textile fibers and construction materials. The yield and quality of hemp biomass are largely determined by the genetic background of the hemp cultivar but are also strongly affected by environmental factors, such as temperature and photoperiod. Hemp is a facultative short-day plant, characterized by a strong adaptation to photoperiod and a great…

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Hemp, Cannabis sativa L., is a sustainable multipurpose fiber crop with high nutrient and water use efficiency and with biomass of excellent quality for textile fibers and construction materials. The yield and quality of hemp biomass are largely determined by the genetic background of the hemp cultivar but are also strongly affected by environmental factors, such as temperature and photoperiod. Hemp is a facultative short-day plant, characterized by a strong adaptation to photoperiod and a great influence of environmental factors on important agronomic traits such as “flowering-time” and “sex determination.” This sensitivity of hemp can cause a considerable degree of heterogeneity, leading to unforeseen yield reductions. Fiber quality for instance is influenced by the developmental stage of hemp at harvest. Also, male and female plants differ in stature and produce fibers with different properties and quality. Next to these causes, there is evidence for specific genotypic variation in fiber quality among hemp accessions. Before improved hemp cultivars can be developed, with specific flowering-times and fiber qualities, and adapted to different geographical regions, a better understanding of the molecular mechanisms controlling important phenological traits such as “flowering-time” and “sex determination” in relation to fiber quality in hemp is required. It is well known that genetic factors play a major role in the outcome of both phenological traits, but the major molecular factors involved in this mechanism are not characterized in hemp. Genome sequences and transcriptome data are available but their analysis mainly focused on the cannabinoid pathway for medical purposes. Herein, we review the current knowledge of phenotypic and genetic data available for “flowering-time,” “sex determination,” and “fiber quality” in short-day and dioecious crops, respectively, and compare them with the situation in hemp. A picture emerges for several controlling key genes, for which natural genetic variation may lead to desired flowering behavior, including examples of pleiotropic effects on yield quality and on carbon partitioning. Finally, we discuss the prospects for using this knowledge for the molecular breeding of this sustainable crop via a candidate gene approach.

Keywords: Cannabis sativa; fiber development; flowering-time; hemp; phenology; sex determination; short-day plant.

Source: https://pubmed.ncbi.nlm.nih.gov/31156677/?utm_source=no_user_agent&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1XAOX_jnjTyCUo06Xbq0lslwi760CIxcWfQx0n9x5BPH5yV1sN&fc=20200804212910&ff=20200810202923&v=2.11.5

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Placed an order with Plain Jane, didn’t receive order confirmation email.

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Hey guys, just want to hear from some people who have ordered from them before and know if thats normal or not. This is my first time ordering from them, I took a screenshot when I checked out and it gave me my order number, I definitely put in the right email and stuff.

Usually most transactions online result in an instant email that notifies they got my order, I got nothing at all, just seems pretty weird and makes me a bit worried.

Is this normal?

Source: https://www.reddit.com/r/CBD/comments/ltugeb/placed_an_order_with_plain_jane_didnt_receive/

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I Tried Tommy Chong's Good Vibes Protocol CBD & It Changed Everything

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Oils, pills, even gummy bears — and it didn't do a thing for me. I wasn't the only one. I asked friends of mine, and most of us had tried CBD before and … Source:

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https://gayle-king-cbd-oil-review.medium.com/gayle-king-cbd-oil-real-reviews-and

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https://gayle-king-cbd-oil-review.medium.com/gayle-king-cbd-oil-real-reviews-and. Started by kaliertyiowe , Feb 27 2021 12:03 PM. Please log in to reply. Source:

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