Laser-induced Recovery of Plant Seeds (Guar) From Storage Stress

Abstract

ABSTRACT

In this work recovery of Guar plant seeds from stressing storage condition were

studied using induced fluorescence emission spectroscopy combined with vegetative

parameters recording. Two years stored Guar plant seeds were exposed to continuous

laser light of 915 nm wavelength and 80mW power from diode laser. Exposure times

ranged from zero to 60s

.

Emission signal from plant leaves was collected after excitation by LED with

450nm light, using USB2000 spectrometer. Spectroscopic parameters studied were

emission spectra and P.I.R, and vegetative parameters studied included germination,

plant leaf dimensions, leaf weight (fresh, dry) and stalk length

.

Results showed that best growth parameters were obtained with seeds exposed for

10s, while all the others showed negative growth. Vegetative data showed to be

consistent with spectroscopic data

.

It was concluded that recovery from stressing storage condition for seeds of Guar

plant is achievable with the laser used and 10s exposure time