EFFECTS OF WATER STRESS AND ORGANIC NITROGEN ON THE LEAF AND MINERAL CONTENTS OF TOMATO(Lycopersicon esculentum(L.)) VARIETIES
2014
Bello, Oluwakemi A. | Ajiboye, A. A. | Agboola, D.A.
The effects of water stress on leaf and mtneral composition of tomato ( Lycoperstcon esculentum) varieties were investigated . The three varieties of tomato used were Beske. lbadan Local and Roma VF sourced from local market at Jbadan. A 3 x 3 x 4 factorial experiment in a completely random1zed design (CRO) was used for the expenment. All data collected were subJected to Analysis ofVanance and the s1gn1ficant means were separated using the Least Stgniticant Difference {LSD) at 5% probability levei.The difference in the leaf nutnent content was not stgnificant (P<O 05) ""-tthm the vanettes. Roma VF had the htghest concentrations of nitrogen (2 61 %) phosphorus (0 62%). calctum (3 18%) and potassium (2 02%). Jbadan Local had the highest manganese (134 ppm) and tron (133 55 ppm) whtle Beske had the highest copper ( 17.29 ppm) and zmc (28. 17 ppm). The results showed that mcrease tn organic nitrogen increased the concentration of calcium, sodium and copper whtle the concentrallons of mtrogen, phosphorus, magnesium. potassium. 1ron and zinc decreased The mvesugauon al~o revealed that the concentrations of nitrogen (2 .86C:C), potassium C 16C:C), manganese ( 134.88ppm), copper (17.37ppm) and 7inc (31.95ppm) ""ere h1ghest at 25 °Cl field capacity while the concentration of phosphorus (0 54%), calcium (2.92CC:) and magnesium {0 50'1-1 were htghest at 100% field ~:apacity but the concentration of iron (137.59 ppm) \\:l.S the htghesl al 50% field capacity. The study showed that water is a ltmittng factor for proper ph) :.•olo_gJcal gro\' Lh performance of tomato vanettcs
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