National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Being a tropical delicious fruit papaya is favored due to its yellowish orange colored soft sweet ripe pulp as well as green fruit as culinary purpose. The plant is commonly propagated by seeds and the seed germination is greatly affected by seed treatment to overcome barrier of germination from sarcotesta as well as the inhibitors present beneath the seed coat. In the present experiment seeds of Ranchi variety were soaked for 24 hours in the solutions of coconut water @ 50%, tomato juice @ 20%, cow urine @ 20%, GA3 @ 200ppm, NAA @ 200ppm, KNO3 @ 0.5% and normal water (control) and sown in polythene bags. Maximum seed germination was obtained under GA3 @ 200ppm. Higher rate of seed germination was also observed in the seeds treated with 50% coconut water and NAA @ 200 ppm. Speed of germination was recorded highest in the seeds treated with GA3 @ 200ppm. However, seedling growth with respect to plant height, and root length, and leaf area, chlorophyll content in leaf was receded maximum under treatment with NAA @ 200 ppm. Germination was inhibited by KNO3 and tomato juice treatment where rate of seed germination was observed lower than the control. Seeds were treated with same treatments and tested under laboratory condition and the results supported the result of the experiment conducted under field condition. Thus it can be concluded that for better germination of papaya seeds the seed treatment with GA3 @ 200 ppm. Seed treatment with coconut water (50%) can also improve seed germination of papaya significantly. However, with respect to seedling growth application of NAA @ 200 ppm or cow urine @ 20 % as seed treatment was best. Overall, NAA @ 200 ppm was best as seed treatment of papaya.
Citations |
 |
 |
 |
 |
