Kinetics of Phosphorus Uptake through Roots of Habanero Pepper ( Capsicum chinense Jacq. cv. Mayapán)

Carmen Yam-Chimal (), Luis Ramírez-y-Avilés, Jorge Navarro-Alberto, Francisco Solorio-Sánchez, Eduardo Villanueva-Couoh and José Noh-Medina
Additional contact information
Carmen Yam-Chimal: Campus of Biological and Agricultural Sciences, Autonomous University of Yucatán (UADY), Carretera Merida-Xmatkuil km 15.5, Mérida C.P. 97100, Mexico
Luis Ramírez-y-Avilés: Campus of Biological and Agricultural Sciences, Autonomous University of Yucatán (UADY), Carretera Merida-Xmatkuil km 15.5, Mérida C.P. 97100, Mexico
Jorge Navarro-Alberto: Campus of Biological and Agricultural Sciences, Autonomous University of Yucatán (UADY), Carretera Merida-Xmatkuil km 15.5, Mérida C.P. 97100, Mexico
Francisco Solorio-Sánchez: Campus of Biological and Agricultural Sciences, Autonomous University of Yucatán (UADY), Carretera Merida-Xmatkuil km 15.5, Mérida C.P. 97100, Mexico
Eduardo Villanueva-Couoh: Department of Postgraduate Studies and Research, National Technologic of México/I.T. Conkal, Avenida Tecnológico s/n, Conkal C.P. 97345, Mexico
José Noh-Medina: Department of Postgraduate Studies and Research, National Technologic of México/I.T. Tizimín, Avenida Cupul km 2.5, Tizimín C.P. 97700, Mexico

Agriculture, 2022, vol. 12, issue 9, 1-9

Abstract: The application of enzymatic kinetics theory on the nutrition of horticultural species is scarce. I ma x and K m describe the kinetics of nutrient absorption by the plant. I max and K m are necessary to predict phosphorus (P) uptake from soil using mathematical models, and their estimation gives information about the efficient use of P in plants. I max and K m for habanero pepper ( Capsicum chinense Jacq. cv. Mayapán) were determined using the modified exhaustion method. Depletion of P by the roots was obtained with 0.01, 0.125, 0.25, 0.50, and 1.00 mM P L −1 . P-depletion data over time were fitted to an exponential-regression model to obtain the initial P-uptake rates by the roots. Initial P-uptake rates were significantly different ( p < 0.001) depending on the levels of P in the solution. I max and K m were predicted by iteratively fitting the initial P-absorption rates in terms of the concentration of P to the Michaelis–Menten model. The average I max was 3.49 × 10 −7 mM cm 2 s −1 and K m was 2.59 × 10 −2 mM P L −1 . These results show that the habanero pepper root can uptake 1.08 × 10 −5 mg P L −1 per cm 2 in the soil solution per second and P transporters are saturated with 2.59 × 10 −2 mM P L −1 .

Keywords: habanero pepper; phosphorous; Michaelis–Menten (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/12/9/1389/pdf (application/pdf)
https://www.mdpi.com/2077-0472/12/9/1389/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:12:y:2022:i:9:p:1389-:d:906538

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().