~ 3067 ~ Journal of Pharmacognosy and Phytochemistry 2019; 8(4): 3067-3068 E-ISSN: 2278-4136 P-ISSN: 2349-8234 JPP 2019; 8(4): 3067-3068 Received: 22-05-2019 Accepted: 24-06-2019 Somu G AICRP on Sorghum, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru, Karnataka, India Shashikumar C AICRP on Cotton, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru University of Agricultural Sciences, Bengaluru, Karnataka, India Shivaray Navi AICRP on Cotton, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru University of Agricultural Sciences, Bengaluru, Karnataka, India Abdulrazak Chadachanakar AICRP on Sorghum, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru, Karnataka, India Meena N AICRP on Sorghum, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru, Karnataka, India Druvakumar M AICRP on Sorghum, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru, Karnataka, India Correspondence Somu G AICRP on Sorghum, KVK, Chamarajanagar, University of Agricultural Sciences, Bengaluru, Karnataka, India Response of different sowing intervals on growth and yield of Kharif Sorghum genotypes Somu G, Shashikumar C, Shivaray Navi, Abdulrazak Chadachanakar, Meena N and Druvakumar M Abstract The experiment was conducted at AICRP (Sorghum), KVK, Chamarajanagar, Karnataka. During kharif seasons of 2017-18 and 2018-19. The experiment consist of three different sowing intervals and four genotypes laid out in split plot design replicated thrice. First fortnight of may sowing among different intervals of sowing and with respect to genotypes CSH-30 recorded the highest grain yield and other growth components. Keywords: Sowing interval, genotypes, growth, yield Introduction Sorghum (Sorghum bicolor (L.) Moench is an important stable food crop in the southern and northern Karnataka. It is mainly cultivated in the tropical and subtropical climates, especially in the semi arid tropics. After rice, wheat, maize and barley it is fifth most important cereal crop. In India sorghum is mainly cultivated as rainfed crop. The area under this crop in India is about 5.86 million hectares with an annual production of 4.57 million tonnes with a productivity of 779.6 kg/ha (Anonymous, 2017) [1] . Agriculture is the back bone of Indian economy. In India major area under agriculture is under dryland condition. Dryland agriculture mainly depends on the rainfall received by the area. To utilize the moisture effectively for crop production to get the higher yield. Optimum sowing interval is necessary. By sowing the crop in right time, we can reduce the loss due to the deficit moisture. By considering the above reason research was designed to study the best sowing interval to get the better growth, yield and economic returns of kharif sorghum genotypes. Material and Methods A field experiment was conducted during Kharif seasons of 2017-18 and 2018-19 to study the effect of different interval of sowing and genotypes on the growth, yield and economics of sorghum at AICRP (Sorghum), KVK, Hardanahalli, Chamarajanagar district, University of Agricultural Sciences, Bengaluru. The experiment was laid out with split plot design and replicated thrice. The Main plot consists of three different interval sowing and subplots four genotypes viz., CSH-25, CSH-30, CSV-23 and CSV-27 were sown at spacing 45cm×15cm. The plot size was 4.5m×5m. Recommended dose of fertilizer as 65:40:40 kg NPK per hectare. Thinning, weeding, Other recommended practices were followed. Qualitative and quantitative data were recorded. The various biometric observations, analytical data of plant sample and the computed data were subjected to statistical analysis per the procedures given by (Gomez and Gomez, 1984) [2] . The treatment differences were worked out at five per cent probability level. Results and discussion There was a significant difference was recorded with different interval of sowing and different genotypes. Growth parameters Plant height (cm) Highest plant height was observed with first fortnight May sowing in both the years of study (233cm and 242cm respectively) in table 1. Increased in plant height may due to favourable environment and effective utilization of the photosynthates during the flowering stage of the sorghum crop. Similar results were observed with Dehghan (2007) [3] and Saini et al. 2018 [4] . Highest plant height was observed with genotype CSV-27 (228cm and 248cm, respectively)