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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(9): 1357-1362
DOI: https://doi.org/10.20546/ijcmas.2019.809.156


Role of Plant Growth Regulators on Quality Seed Yield of Bottle Gourd [Lagenaria siceraria (Mol.) Standl.]
Manish Kumar*, Vijay Kumar Singh1, Sangeeta Shree1, Randhir Kumar1 and Arun Kumar2
Department of Horticulture (Vegetable and Floriculture), BAC, Bihar Agricultural University, Sabour, Bhagalpur, India-813210
*Corresponding author
Abstract:

An experiment was carried out during summer season, 2018 on “Role of plant growth regulators on quality seed yield of bottle gourd”. The experiment was laid out in randomised block design (Factorial) with three levels of NAA (50 ppm, 75 ppm, 100 ppm), GA3 (50 ppm, 75 ppm, 100 ppm) and Ethrel (100 ppm, 200 ppm, 300 ppm) and control (P0- distilled water spray) at three stages of spray (S1 - At two true leaf stage, S2 - 1st at two true leaf stage and 2nd at four true leaf stage and S3 - 1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage) and replicated thrice. Significantly highest seed yield (465.22 kg/ha) was obtained under the foliar application of Ethrel @ 300 ppm sprayed at stage S3 (1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage). Significantly highest number of seeds per fruit (425) was recorded with the GA3 @ 50 ppm sprayed at stage S3 (1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage) whereas 100 seed weight (13.48 g) was observed in treatment P6S3 (P6- GA3 100 ppm and S3-1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage) and found non-significant. The maximum germination per cent (90.33 %) and seed viability (95.66 %) were observed when the plant was sprayed with GA3 @ 100 ppm at stage S2 (1st at two true leaf stage and 2nd at four true leaf stage) which was found non-significant. Significantly highest seedling length (29.33 cm), vigour Index II (53.03), vigour Index I (23.84) and seedling dry weight (0.65 mg) were recorded with application of Ethrel @ 200 ppm applied at stage S2 (1st at two true leaf stage and 2nd at four true leaf stage). Electrical conductivity (0.54 dS/cm/seed) was minimum when GA3 @ 100 ppm applied at stage S3 (1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage) which was significantly good for the better germination of seed. The maximum net return (Rs 458092) with higher B: C ratio (4.57) was observed with combined effect of Ethrel @ 300 ppm sprayed at stage S3 (1st at two true leaf stage, 2nd at four true leaf stage and 3rd at flower initiation stage). Therefore, it may be concluded that foliar application of Ethrel @ 300 ppm sprayed at three times i.e. at two true leaf stage, four true leaf stage and flower initiation stage was beneficial for higher seed yield and better quality of seed.


Keywords: Plant growth regulators, Stages of spray, Seed and quality, Yield.
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How to cite this article:

Manish Kumar, Vijay Kumar Singh, Sangeeta Shree, Randhir Kumar and Arun Kumar 2019. Role of Plant Growth Regulators on Quality Seed Yield of Bottle Gourd [Lagenaria siceraria (Mol.) Standl.].Int.J.Curr.Microbiol.App.Sci. 8(9): 1357-1362. doi: https://doi.org/10.20546/ijcmas.2019.809.156