Effect of phosphorus fertilizer and shoot pruning on growth, yield and fruit quality of tomato (Solanum lycopersicum)

B U OLAYINKA; A S ABDULBAKI; M OYEWOLE; O E JACOBS; K A ABDULKAREEM; A R LAWAL; L B ABDULRAUF; I KAREEM; G Y MUHAMMED; C P EZEKEKWU; O T MUSTAPHA

doi:10.56093/ijas.v93i6.128458

Authors

B U OLAYINKA University of Ilorin, Ilorin, Nigeria
A S ABDULBAKI Federal University Dutsinma, Katsina state, Nigeria
M OYEWOLE University of Ilorin, Ilorin, Nigeria
O E JACOBS School of Sciences, Kwara State College of Education, Ilorin, Nigeria
K A ABDULKAREEM University of Ilorin, Ilorin, Nigeria
A R LAWAL Kwara State University, Malete, Nigeria
L B ABDULRAUF University of Ilorin, Ilorin, Nigeria
I KAREEM University of Ilorin, Ilorin, Nigeria
G Y MUHAMMED University of Ilorin, Ilorin, Nigeria
C P EZEKEKWU University of Ilorin, Ilorin, Nigeria
O T MUSTAPHA University of Ilorin, Ilorin, Nigeria

https://doi.org/10.56093/ijas.v93i6.128458

Keywords:

Fertilization, Pruning, Phosphorus, Tomato, Yield

Abstract

Phosphorus fertilization or pruning as sole practice has been established to enhance tomato yield. However, there is a dearth of knowledge when both practices are combined. Under potted experiment, two tomato varieties (Tomato 82-B and Local) were subjected to 13 treatment combinations of phosphorus fertilization and pruning between June and September, 2021 in a garden situated at Ilorin, Nigeria. In both varieties, plants receiving 30 kg P/ha + two-stem pruning recorded highest growth indices. Marketable fruit yield was remarkably enhanced under 45 kg P/ha + four-stem pruning and 30 kg P/ha + two-stem pruning in local and Tomato 82-B respectively. Local variety showed more vigorous growth and yield than Tomato 82-B. Proximate compositions showed inconsistent results. Ascorbic acid, beta-carotene and lycopene were highest in tomato plants receiving 60 kg P/ha + four-stem pruning, 15 kg P/ha + three-stem pruning and 45 kg P/ha + four-stem respectively. Tomato 82-B had higher ascorbic acid and beta-carotene than the local variety. Conclusively, four-stem pruning + 45 kg/ha and two-stem pruning + 30 kg/ha are considered optimum for improving the yield of tomato varieties studied and that combination of pruning and phosphorus fertilization showed little influence on the fruit quality.

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