Response of bio-regulators to yield and quality of Indian mustard (Brassica juncea L. Czernj. and Cosson) under different irrigation environments

Abstract

A field study was conducted during rabi seasons of 2008 and 2009 to evaluated of productivity of Indian mustard (Brassica juncea L.) by foliar spray of bio-regulators under different irrigation environments. Amongst treatments, the application of sufficient irrigation water (four irrigations) recorded the highest number siliqua per plant, higher number of seeds per siliqua, 1000 seed weight and yields as compared to all other irrigation treatments. Results show that an increased in seed yield of 92.40 and 39.37 % under sufficient irrigation and limited water condition in 2008 and 93.34% and 40.31% in 2009, respectively over deficient irrigation conditions, foliar sprays of 100 ppm thioglycollic acid at initiation of branching were recorded highest yield attributes and yields. Similarly, 500 ppm of thiourea at initiation of branching and flowering stages also gave second best highest yield attributes and yields as compared to all other bio-regulators spray stages. However, bio-regulators sprays were not recorded any significant effect on oil and protein content. The results were concluded that economic feasibility to improve productivity of Indian mustard with four irrigations levels and sprays of 100 ppm thioglycollic acid and 500 ppm of thiourea at initiation of branching and flowering stages under hyper arid environment.

Response of sowing dates and bio regulators on yield of clusterbean under current climate in alley cropping system in eastern U.P., India

“…Table 2, marked increase in the nodulation and HUE, which could lead to increase in photosynthesis, resulting in greater transfer of assimilates to the seeds and causing increase in their weight. Similar results have been reported by Meena et al (2014a); Dadhich et al (2015).…”

“…Drought stress is a global issue that significantly reduces the yield and quality of rainfed crops (Hongbo et al, 2005). Use of plant growth regulators like thiourea (CH 4 N 2 S) and salicylic acid (C 7 H 6 O 3 ) amend plant responses towards biotic and abiotic stresses (Farooq et al, 2009Dadhich et al, 2015. Application of thiourea has been identified as a novel bio-regulator technology, for imparting stress tolerance to crops (Meena et al, 2014a;Dadhich et al, 2015a).…”

Effect of sulfur fertilization, varieties and irrigation scheduling on growth, yield, and heat utilization efficiency of indian mustard (Brassica JunceaL.)

“…Optimum soil moisture in the crop root zone associated with higher IW/CPE ratios must have led to better nutrient uptake, cell growth and division, higher photosynthetic activity and ultimately, better agronomic traits. The results are substantiated by the research findings of Piri and Sharma (2006), Yadav, Tripathi, and Trivedi (2010), Dadhich et al (2015) and Rathore et al (2017). Among the varieties tested, significant variation was exhibited and mustard hybrid 'PAC 432ʹ recorded better performance with significantly higher plant height (195.46 and 188.58 cm), number of primary branches (7.51 and 7.09), number of secondary branches (16.54 and 16.44) and dry matter accumulation at harvest (786.59 and 755.15 g m −2 ) in comparison to 'NRCHB-506ʹ in first and second year of research, respectively.…”

Growth and yield of hybrid mustard as influenced by irrigation scheduling and nitrogen management

“…The significant increase in crop growth parameter like the plant height, dry matter accumulation, CGR might be due to optimum supply of soil moisture surrounding root zone by favourably improving the nutrient uptake and translocation, higher photosynthetic activities which ultimately linked with the plant growth and development. The results are substantiated by the research findings of Piri and Sharma (2006), Dadhich et al (2015) and Rathore et al (2017) [10,1,13] . Among the nitrogen management treatments in sub-plots, the application of 120kg N/ha recorded the highest plant height (155 cm) and dry matter accumulation (1041.7 g/m 2 ) at harvesting stage.…”