Background of the Study
Dagger cactus (Stenocereus griseus) is a succulent plant that is known for medicinal
purposes, such as religious and ceremonial rituals. In food and beverages, they may also
establish an appetizing taste (Felger, R.S., S. Rutman, J. Malusa, & M.A. Baker., 2014). In
addition, the Dagger cactus can also produce seed on its branches and their species have both
photoblastic and light-insensitive seeds which means they can grow in light and darkness
conditions (De la Barrera, E., & Nobel, P. S. 2003). Visioli et al., (2010) states that the main
source of fat in the Mediterranean region is olive oil. It is often used for religious and spiritual
activities. Moreover, Olive oil can prevent chronic diseases because of its unsaturated fatty acid
(Visioli et al., 2010). However, it can also be a serious environmental concern to dispose of olive
oil waste but Marra et al., (2018) argues that the production of the plant will successfully
increase and suppress diseases if you apply the waste olive oil on its soil. Powerful antioxidants
like vitamin E and K are also present in olive oils that can contribute to plant growth (Visioli &
Galli 2001).
       The study aims to utilize wasted olive oil products as an alternative fertilizer to succulent
plants like dagger cactus. It can also minimize waste products in the environment and, at the
same time, can also conserve more cash than simply tossing them out. Olive oil nutrients can
impact the growth and production of the dagger cactus.
       In that defined case, part of the objectives is to use these said waste as an advantage to
make Dagger cactus cultivation and production more convenient. It is important to exploit the
resources and make them more accessible and effective to everyone, especially in urban
Manila.
References:
Felger, R. S., Rutman, S. U. S. A. N., Malusa, J., & Baker, M. A. (2014). Ajo Peak to Tinajas Altas: A
          flora in southwestern Arizona. Part 7. Eudicots: Cactaceae—Cactus Family. Phytoneuron,
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Jiménez Aguilar, A., & Flores Rivas, J. D. (2010). Effect of light on seed germination of succulent
          species from the southern Chihuahuan Desert: comparing germinability and relative
light     germination.
De la Barrera, E., & Nobel, P. S. (2003). Physiological ecology of seed germination for the
          columnar cactus Stenocereus queretaroensis. Journal of Arid Environments, 53(3), 297-
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Visioli, F., Franco, M., Toledo, E., Luchsinger, J., Willett, W. C., Hu, F. B., & Martinez-Gonzalez,
M.        A. (2018). Olive oil and prevention of chronic diseases: Summary of an International
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Marra, R., Vinale, F., Cesarano, G., Lombardi, N., d’Errico, G., Crasto, A., ... & Bonanomi, G.
(2018).          Biochars from olive mill waste have contrasting effects on plants, fungi and
phytoparasitic           nematodes. PloS one, 13(6), e0198728.
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