Effects of Seed Treatments on Germination and Growth of Papaya Seedlings (Carica papaya L.

Abstract

This study was carried out under nursery condition in Sudan University of Sciences and Technology, College of Agricultural Studies Department of Horticulture, to investigate the effect of chemical and cultural treatments on seed germination of Carica papaya L. in intact seeds and without sarcotesta during the year 2011, germination parameters. Both intact and sarcotesta removed seeds were soaked in either KNO3 , HSO4 against control. , hot water, cold water and compared Data were collected for germination percentage, germination rate, Seedling height, root length, shoot and root fresh and dry weights The results showed that soaking seed of removed sarcotesta on potassium nitrate gave the highest germination percentage, While the highest germination percentage for intact seeds were recorded when seeds were treated with hot water. The same pattern was observed for germination rate. However, the highest number of leaves was recorded for the cold water treatment in seeds without sarcotesta and in controls and KNO3 treatments in intact seeds.