European Journal of Scientific Research - EuroJournals

European Journal of Scientific Research - EuroJournals European Journal of Scientific Research - EuroJournals

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Germination Studies in Selected Native Desert Plants of Kuwait 342 were analyzed using the Student “t” test at 5% level of confidence. Mean separation was performed using the Duncan’s Multiple Range Test (Little and hill, 1978). 3. Results 3.1. Cyperus conglomeratus Seed germination in this species was promoted by both high temperature stratification and GA3 treatments (Table.1). The highest germination was achieved when seeds were maintained at 50ºC for 60 days. Extending the heat treatment beyond 60 days adversely affected germination. Similarly, soaking seeds in 1000 ppm GA3 solution increased the germination from 10% in control to 74%. Table-1: Effect of High Temperature Stratification and GA3 Treatment of Seeds on Germination in Cyperus conglomeratus Treatments* Final Germination (%) Seed stratification at 50ºC (Days) Control 3 a** 60 86 c 90 80 bc 150 54 b 210 72 bc 240 54 b 300 66 bc S.E 12.52 Gibberellic acid (ppm) Control 10 a 100 38 b 200 43 b 300 47 b 500 53 b 1000 74 c S.E 9.28 * Stratification and GA3 treatment effects were tested separately in two experiments. ** The treatment means followed by the same letter within each experiment are not statistically different at P

343 Sameeha Zaman, Shyamala Padmesh, Narayan R. Bhat and Harby Tawfiq Table-2: Effects of KNO3 and High temperature stratification on germination of Citrullus colocynthis Treatmentsx Final Germination (%) Control 3 a Soaking in 0.3% KNO3* 70 b Seed stratification at 50ºC** Control 2 a 30 days 0 a 120 days 44 b 240 days 36 b 280 days 0 a 370 days 1 a S.E. 8.28 x Stratification and KNO3 treatment effects were tested separately in two experiments. * Seeds soaked in 0.3% KNO solution for 24 hrs were used for sowing. Treatment value is significant at P

343 Sameeha Zaman, Shyamala Padmesh, Narayan R. Bhat and Harby Tawfiq<br />

Table-2: Effects <strong>of</strong> KNO3 and High temperature stratification on germination <strong>of</strong> Citrullus colocynthis<br />

Treatmentsx Final Germination (%)<br />

Control 3 a<br />

Soaking in 0.3% KNO3* 70 b<br />

Seed stratification at 50ºC**<br />

Control 2 a<br />

30 days 0 a<br />

120 days 44 b<br />

240 days 36 b<br />

280 days 0 a<br />

370 days 1 a<br />

S.E. 8.28<br />

x Stratification and KNO3 treatment effects were tested separately in two experiments.<br />

* Seeds soaked in 0.3% KNO solution for 24 hrs were used for sowing. Treatment value is significant at P

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