~ 1129 ~ International Journal of Chemical Studies 2019; 7(6): 1129-1131 P-ISSN: 2349–8528 E-ISSN: 2321–4902 IJCS 2019; 7(6): 1129-1131 © 2019 IJCS Received: 25-09-2019 Accepted: 27-10-2019 Mohammed Mohsin Ph.D. Scholar, Department of Agronomy, Rajasthan College of Agriculture, Udaipur, Rajasthan, India J Choudhary Assistant Professor, Department of Agronomy, Rajasthan College of Agriculture, Udaipur, Rajasthan, India Mohan Lal Jat Ph.D. Scholar, Department of Agronomy, Rajasthan College of Agriculture, Udaipur, Rajasthan, India Satya Narayan Meena Ph.D. Scholar, Department of Agronomy, Rajasthan College of Agriculture, Udaipur, Rajasthan, India Corresponding Author: Mohammed Mohsin Ph.D. Scholar, Department of Agronomy, Rajasthan College of Agriculture, Udaipur, Rajasthan, India Effect of sowing environments and foliar spray of agro-chemicals on quality and biochemical changes of wheat ( Triticum aestivum L.) Mohammed Mohsin, J Choudhary, Mohan Lal Jat and Satya Narayan Meena Abstract A field experiment was carried out at Instructional Farm, Department of Agronomy, Rajasthan College of Agriculture, MPUAT, Udaipur during rabi 2017-18 and 2018-19 to study the effect of sowing environments and foliar sprat of agro-chemicals. The experiment was laid out in split-plot design with four replications involving four sowing environments viz, D1- 15 th November, D2- 30 th November, D3- 15 th December and D4- 30 th December as main plots and five agro-chemicals as sub plots viz, A1- water spray, A2- KCl 0.1%, A3- KCl 0.2%, A4- Salicylic acid 100 ppm and A5- Salicylic acid 200 ppm. Results showed that among different sowing environments, crop sown under 15 th November recorded the significantly higher protein content. Among agro-chemicals, foliar spray of salicylic acid 100 ppm recorded the significantly higher protein content over rest of agro-chemicals treatments. 30 th December sown registered the highest proline content which was significantly superior over rest of sowing environments. However, foliar sprays of agro-chemicals fail to produce any significant effect on proline content of wheat leaves. Keywords: Salicylic acid, KCl, protein content and proline content Introduction Wheat (Triticum aestivum L.) is the World’s most important widely cultivated food crop. The sowing time plays an important role among various agronomic factors, which influencing the quality and yield of wheat. The production of wheat grain in the year 2018-19 was 101.20 m t from acreage of 29.55 m ha at a yield level of 3424 kg ha -1 whereas in Rajasthan it is grown on 2.88 m ha area with production of 9.60 m t and the productivity of 3374 kg ha -1 (Progress report, AICRP on Wheat and Barley, 2018-19). To keep pace with increasing population, India needs to increase wheat production. However, climate change is one of the important factor responsible for low yield in wheat. Its time of sowing is one of the most important factors that govern the crop phenological development and efficient conversion of biomass into economic yield. The green revolution is mainly due to introduction of high yielding varieties. There is no more land under cultivation and hence it is necessary to employ low cost technologies for improving wheat yield through natural resource management. Delay in the sowing of wheat crop causes the substantial loss in grain yield due to high temperature at later phenological stages (maturity). Delayed germination due to low soil and ambient temperature prevailing at the time of late sowing and short vegetative period of the crops are the main causes of low yield under late sown condition. If wheat is sown late, the crop is induced to flower quite early due to onset of spring season cutting vegetative phase short which result in shortening of source and sink capacity. Plant’s tolerance against environmental stresses can be increased by the exogenous application of certain growth enhancers like proline, amino acids, ABA, glycine betaine, BAP, silicon, soluble sugars, humic acid and potassium (Farooq et al., 2009) [3] . Keeping in view the above facts, the present study was planned to evaluate the performance of wheat under different sowing environments and agro-chemical treatments. Materials and methods Field experiments were conducted during rabi seasons of 2017-18 and 2018-19 at the Agronomy Instructional Farm, Rajasthan College of Agriculture, Udaipur (Rajasthan). The soil of experimental field was clay loam in texture and slightly alkaline in reaction (pH 8.2 and 8.1).