Effect of plant growth regulator Cycocel on growth, yield and economics of Rabi Sorghum (Sorghum bicolor L.) under rainfed conditions

Abstract

A field experiment was conducted at Agricultural Research Station, Tandur, Professor Jayashankar Telangana State Agricultural University during 2018-19 & 2019-20 to study the response of Cycocel in terms of growth characters, yield attributes and economics. In the present study, ten treatments were included i.e. 1. Cycocel spray @ 500 ppm at knee height stage (45 DAS), 2. Cycocel spray @ 500 ppm at booting stage (65 DAS), 3. Cycocel spray @ 1000 ppm at knee height stage (45 DAS), 4. Cycocel spray @ 1000 ppm at booting stage (65 DAS), 5. Cycocel spray @ 500 ppm both at knee height stage (45 DAS) and at booting stage (65 DAS), 6. Cycocel spray @ 1000 ppm both at knee height stage (45 DAS) and at booting stage (65 DAS), 7. Simple water spray at knee height stage (45 DAS), 8. Simple water spray at booting stage (65 DAS), 9. Simple water spray both at knee height stage (45 DAS) and at booting stage (65 DAS) and 10. Control. The treatments were evaluated in Randomized Block Design (RBD) with three replications. The pooled results of the study revealed that Cycocel (CCC) spray @ 1000 ppm at knee height stage (45 DAS) and booting stage (65 DAS) record significantly lowest plant height (181.1 cm) and highest grain yields (2309 kg ha-1) of Rabi Sorghum. The gross monetary returns (Rs. 73868 ha 1), net returns (Rs. 48868 ha 1) and B:C ratio (1.94) were also significantly highest with Cycocel spray @ 1000 ppm at knee height stage (45 DAS) and booting stage (65 DAS).