tailieunhanh - Role of plant growth regulators on quality seed yield of bottle gourd [Lagenaria siceraria (Mol.) Standl.]

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, 2 nd at four true leaf stage and 3rd at flower initiation stage) and replicated thrice. Significantly highest seed yield ( 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 ( 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 ( %) and seed viability ( %) were observed when the plant was sprayed with GA3 @ 100 ppm at stage S2 (1st at two true leaf stage and 2 nd at four true leaf stage) which was found non-significant. | Role of plant growth regulators on quality seed yield of bottle gourd [Lagenaria siceraria (Mol.) Standl.]