Relationship of molecular mobility of water with floral malformation in mango as assessed by nuclear magnetic resonance.
Usha K., Gambhir P. N., Sharma H. C., Goswami A. M., Bhupinder Singh
Author Affiliation: Division of Fruits and Horticulture Technology, Indian Agricultural Research Institute, New Delhi 110?012, India.
Scientia Horticulturae 59 : 291-295
Abstract : Spin lattice relaxation time (T1) was measured for various healthy and malformed parts of mango cv. Amarapali by proton pulsed nuclear magnetic resonance (NMR) at 20 MHz and at room temperature. The T1 values were high in malformed parts compared with healthy parts, indicating that the molecular mobility of water is higher in malformed parts. However, in stem parts near to malformed panicles (within 1-2 cm), T1 values were significantly higher than in other parts. This indicates that the site of primary infection causing malformation is probably the meristematic region.