TY - JOUR
T1 - Foliar Spraying of Solanum tuberosum L. with CaCl2 and Ca(NO3)2
T2 - Interactions with Nutrients Accumulation in Tubers
AU - Coelho, Ana Rita F.
AU - Ramalho, José Cochicho
AU - Lidon, Fernando Cebola
AU - Marques, Ana Coelho
AU - Daccak, Diana
AU - Pessoa, Cláudia Campos
AU - Luís, Inês Carmo
AU - Guerra, Mauro
AU - Leitão, Roberta G.
AU - Semedo, José Manuel N.
AU - Silva, Maria Manuela
AU - Pais, Isabel P.
AU - Leal, Nuno
AU - Galhano, Carlos
AU - Rodrigues, Ana Paula
AU - Legoinha, Paulo
AU - Silva, Maria José
AU - Simões, Maria M.
AU - Campos, Paula Scotti
AU - Pessoa, Maria Fernanda
AU - Reboredo, Fernando Henrique
N1 - Funding Informationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04035%2F2020/PT#
info:eu-repo/grantAgreement/FCT/OE/UI%2FBD%2F150806%2F2020/PT#
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/6/29
Y1 - 2022/6/29
N2 - Calcium is essential for plants, yet as its mobility is limited, the understanding of the rate of Ca2+ accumulation and deposition in tissues of tubers, as well as the interactions with other critical nutrients prompted this study. To assess the interactions and differential accumulation of micro and macronutrients in the tissues of tubers, Solanum tuberosum L. varieties Agria and Rossi were cultivated and, after the beginning of tuberization, four foliar sprayings (at 8–10 day intervals) with CaCl2 (3 and 6 kg ha−1) or Ca(NO3)2 (2 and 4 kg ha−1) solutions were performed. It was found that both fertilizers increased Ca accumulation in tubers (mostly in the parenchyma tissues located in the center of the equatorial region). The functioning of the photosynthetic apparatus was not affected until the 3rd application but was somewhat affected when approaching the end of the crop cycle (after the 4th application), although the lower dose of CaCl2 seemed to improve the photochemical use of energy, particularly when compared with the greater dose of Ca(NO3)2. Still, none of these impacts modified tuber height and diameter. Following the increased accumulation of Ca, in the tubers of both varieties, the mean contents of P, K, Na, Fe, and Zn revealed different accumulation patterns. Moreover, accumulation of K, Fe, Mn, and Zn prevailed in the epidermis, displaying a contrasting pattern relative to Ca. Therefore, Ca accumulation revealed a heterogeneous trend in the different regions analyzed, and Ca enrichment of tubers altered the accumulation of other nutrients.
AB - Calcium is essential for plants, yet as its mobility is limited, the understanding of the rate of Ca2+ accumulation and deposition in tissues of tubers, as well as the interactions with other critical nutrients prompted this study. To assess the interactions and differential accumulation of micro and macronutrients in the tissues of tubers, Solanum tuberosum L. varieties Agria and Rossi were cultivated and, after the beginning of tuberization, four foliar sprayings (at 8–10 day intervals) with CaCl2 (3 and 6 kg ha−1) or Ca(NO3)2 (2 and 4 kg ha−1) solutions were performed. It was found that both fertilizers increased Ca accumulation in tubers (mostly in the parenchyma tissues located in the center of the equatorial region). The functioning of the photosynthetic apparatus was not affected until the 3rd application but was somewhat affected when approaching the end of the crop cycle (after the 4th application), although the lower dose of CaCl2 seemed to improve the photochemical use of energy, particularly when compared with the greater dose of Ca(NO3)2. Still, none of these impacts modified tuber height and diameter. Following the increased accumulation of Ca, in the tubers of both varieties, the mean contents of P, K, Na, Fe, and Zn revealed different accumulation patterns. Moreover, accumulation of K, Fe, Mn, and Zn prevailed in the epidermis, displaying a contrasting pattern relative to Ca. Therefore, Ca accumulation revealed a heterogeneous trend in the different regions analyzed, and Ca enrichment of tubers altered the accumulation of other nutrients.
KW - accumulation of nutrients
KW - calcium
KW - photosynthesis
KW - potato biofortification
KW - Solanum tuberosum L
UR - http://www.scopus.com/inward/record.url?scp=85132968233&partnerID=8YFLogxK
U2 - 10.3390/plants11131725
DO - 10.3390/plants11131725
M3 - Article
C2 - 35807677
AN - SCOPUS:85132968233
SN - 2223-7747
VL - 11
JO - Plants
JF - Plants
IS - 13
M1 - 1725
ER -