Vol. 19 No. 1
The effect of sarcotesta and time of sowing on seed germination of papaya (Carica papaya L.) cv. GJP-1
Abstract: Slow and asynchronous germination of papaya seeds partly might be associated with the occurrence of various inhibitors in the gelatinous sarcotesta and seed coat. Similarly, the sowing of papaya seeds at different times affects the germination of papaya seeds. Hence, this experiment was undertaken at JAU, Gujarat to evaluate the influence of both the parameters viz., sarcotesta and time of sowing on seed germination of papaya cv. GJP-1. The removal of sarcotesta by hand rubbing was done and after evaluating the better treatment among the effect of sarcotesta, the seeds were shown in the polybag containing the media mixture of soil: sand: FYM in 1:1:1 ratio. Among the treatment effect of sarcotesta the seeds without sarcotesta executed the highest germination percentage (81.03%), survival percentage (98.29%) and least days for germination (14.28). Among the different dates of sowing, the early germination of papaya seeds (8.28 days) was found on 1st July (T13) whereas, the highest germination and survival percentage (96.66 and 99.28 %) were observed in seeds sown on 16th June (T12) and 1st June (T11), respectively. Hence, it could be concluded that for obtaining good quality papaya seedlings, the seeds (cv. GJP-1) should be soaked for 24 hours in the water, followed by the removal of sarcotesta by hand rubbing and seeds should be sown during June to July months of the year for getting higher germination and survival percentage.
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