Flowering
Hemp is a short day plant which means that they only start to flower when the daylength is less than twelve hours. To get the best seed yield and largest stalks, the seeds are put in the ground early in the growing season depending on the local climate, so it has plenty of time to grow.
Hemp is a dioecious plant which means that they can be either male or female. However, in hemp production female plants as male plants do not produce seed and die earlier after they flower.
A common practices is that farmer buy specially bred seed that is monocious and include only a couple males to fertilize the females. the males will then flower, pollinate the females, and die off, while the females continue to grow and set seed.





References:

Baxter, J. 2000. Growing Industrial Hemp in Ontario. Agdex# 153/20. Available at http://www.omafra.gov.on.ca/english/crops/facts/00-067.htm#fertility

Van der Werf, H.M.G. and W. Van den Berg. 1995. Nitrogen fertilization and sex expression affect size variability of fibre hemp (Cannabis sativa L.) Oecologia, 103: 462–470

Small, E. and D. Marcus. 2002. Hemp: A new crop with new uses for North America. p. 284–326. In: J. Janick and A. Whipkey (eds.), Trends in new crops and new uses. ASHS Press, Alexandria, VA.

Comments

  1. Alex25 December 2019 at 23:18

    Find BioMass is an online marketplace to provide a top-quality purchase and sell trimmed organically grown, naturally cured Hemp flowers at affordable prices.

    Hemp Marketplace

    ReplyDelete

Post a Comment

Popular posts from this blog

Image
The Anatomy and Morphology of hemp The Hemp (or cannabis) plant, is famous globally because of its iconic shape of leafs. In this post I'm going to talk more in dept about some characteristics of the hemp plant that are also recognisable from the outside, but may not be known for people who's knowledge does not go beyond the point of recognising the shape of the leaf. Monocot or dipot? The distinction between monocot and dicot plant is pretty easy to determine from outside. First of all, you can take a look at the flowers. If the flower is in parts of threes or a multiplied version of this, it is a monocot plant. If the flower is made up in parts of fours and fives of a multiplied version of this, the plan is a dicot. (Source:  http://www.ext.colostate.edu/mg/gardennotes/135.html) Another way to indentify if a plant is a monocot or dicot, is to look at the leafs. Monocot leafs have the veins parallel to each other, while dicot leafs are branches and netlike. This is e
Read more
Transgenic plants, love 'em or hate 'em The question on whether plant should be genetically modified is widely discussed. There are so many advocates on both sides that are completely convinced that what they think is best, that it is quite hard to determine who is right. On all topics where opinions are so divided, it is obvious that both sides have remarkable benefits, or drawbacks. In the case of transgenic plants, the proponents are right to be a big fan, there are many reasons why transgenic plants are viewed as the future of food security. Transgenic plants can be altered to make it a better crop in specific or general situations. Generally, is can be used to be more resistant to pesticides, or can be modified to be more resistant to plagues itself, thus decreasing the need of pesticides. Other more specific situations could include extra nutritional values for a certain target group that is vulnerable to a certain nutrient deficiency. On the other hand, there are m
Read more
Weed control in hemp farming In general, weeds in hemp production are not a really big issue. This is because hemp grows rather fast and if put under the right conditions, hemp covers the ground shade with 90% in 3-4 weeks from planting hereby suppressing almost all the weeds. The key is to plant hemp early as soon as the soil is warm enough for the hemp to grow (Hemp University) Moreover, hemp is even used as a weed killer on fields over a hundred years. “Very few of the common weeds troublesome on the farm can survive the dense shade of a good crop of hemp… In one 4-acre field in Vernon County, Wis., where Canada thistles were very thick, fully 95 per cent of the thistles were killed…” — Lyster Dewey, Hemp. USDA Yearbook of Agriculture, 1913. “Hemp grows quickly, soon covers the ground and chokes out the weeds. So weed control is not necessary.” — Eddy A. A. de Maeyer. 1994 1 Because of the competitiveness of hemp with weeds, the chemical input need for herbicides is also
Read more