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|Title: ||Effect of temperature and chemical pre-treatment on seed germination in papaya (Carica papaya)|
|Authors: ||H S, Yogeesha|
K, Bhanu Prakash
L B, Naik
|Issue Date: ||2007|
|Citation: ||H S Yogeesha, K Bhanuprakash and L.B.Naik. 2007. Effect of temperature and chemical pre-treatment on seed germination in papaya (Carica papaya L.). Indian J. Agricultural Sciences, 77 (10):689-691.|
|Abstract: ||Alternate temperature of 20 0C for 16h and 32 0C for 8 h was found optimum for papaya seed germination with 69.5, 92.0 and 61.5 per cent germination in fresh seeds of ‘Surya’, ‘CO2’ and ‘CO7’ as against 0.0, 11.5 and 2.0 per cent respectively, in seeds without any treatment at constant temperature of 25 0C. Among the chemical treatments, only GA3 could improve the germination significantly at 25 0C. GA3 @ 200 ppm was found effective at 25 0C in all cultivars with 85.0, 69.3 and 75.0 per cent germination in ‘Surya’, ‘CO2’ and ‘CO7’, respectively. Sarcotesta had no role in inhibiting seed germination. Drying methods also did not affect seed germination significantly. Soaking papaya seeds in GA3 @ 200-400 ppm for 48 h before sowing would greatly improve the germination and emergence in the nursery.|
|Appears in Collections:||Seed Science & Technology|
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