PJB-2017-876
COMPARISON OF IMPACT INDUCED BY DIFFERENT PRIMING TECHNIQUES ON GERMINATION AND PLANT DEVELOPMENT IN LISIANTHUS (EUSTOMA GRANDIFLORUM
Maila-al-Saba Shah
Abstract
Lisianthus (Eustoma grandiflorum) belongs to family Gentianaceae is becoming one of the most highly ranked cut flowers in international market. Lisianthus seeds exhibited cold-related dormancy and slow germination rate. Seed priming techniques have been utilized to increase germination attributes and improve germination uniformity. The present study was conducted to enhance germination uniformity and plant development in Lisianthus by using different priming techniques. The effect of different concentrations of gibberellic acid (250, 500 and 1000 ppm GA3), potassium nitrate (0.1, 0.2 and 0.3% KNO3), hydro priming (DW, CDW, WDW) and control will be examined on germination and other physiological parameters. Complete Randomized Design (CRD) will be used for nine treatments and five replications. Plants treated with GA3 of concentration 1000 ppm had a positively impacted all parameters ( mean germination time, germination index, plant height, number of leaves, stem length, number of flowers, size of flower fresh and dry plant weight). It seems that GA3 and KNO3 can be replaced partly to improve seed germination of lisianthus seeds. Therefore, it is concluded that for best germination and plant growth parameters of Lisianthus seeds, hormonal (GA3) and halo priming (KNO3) can be used.
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