Effect of Foliar Application of GA3 , Ethrel and Copper Sulphate on Fruit and Yield of Jatropha Curcas L.

Paresh Gayakvad; D. B. Jadeja; M. B. Tandel; M. R. Parmar; Shailendra Bhalawe; D. Nayak

doi:10.36808/if/2014/v140i12/55258

Effect of Foliar Application of GA₃ , Ethrel and Copper Sulphate on Fruit and Yield of Jatropha Curcas L.

Authors

Paresh Gayakvad Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat
D. B. Jadeja Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat
M. B. Tandel Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat
M. R. Parmar Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat
Shailendra Bhalawe Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat
D. Nayak Department of Silviculture and Agroforestry, ASPEE College of Horticulture and forestry, Navsari Agricultural University, Navsari-396450 Gujarat

DOI:

https://doi.org/10.36808/if/2014/v140i12/55258

Keywords:

Jatropha curcas, GA₃, Ethrel, Copper Sulphate and yield

Abstract

Jatropha curcas, a monoecious perennial biofuel shrub belonging to the family Euphorbiaceae, has few female flowers, which is one of the most important reasons for its poor seed yield. This study was undertaken to determine the effect of foliar application of GA3 (25, 50,100ppm), Ethrel (1500, 2000, 2500ppm), Copper sulphate (0.10, 0.20, 0.50ppm) on fruit 3 and seed yield of J. curcas. Exogenous application GA3 50ppm resulted in significantly increased number of fruits per 3 inflorescence (3.71) , number of fruits per plant (88.00), and total fruits (453.33) as well as 355.55 gm seed yield per th th plants in plant treated with GA 50ppm as compared to control between 9th to 14th spray. The Male: Female flower ratio 3 th was lowest at 14th spray stage under majority of treatments indicating increased number of female flowers which is ultimately reflected by increased fruit and seed yield.

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