Salicylic acid and sowing dates effect on linseed (Linum usitatissimum)under rainfed rice (Oryza sativa) fallow condition

DIPSIKHA BONIA; ANJAN KRISHNA SARMAH; N T RAFIQUE; MARAMI DUTTA; SANGITA DAS

doi:10.56093/ijas.v96i5.169097

Authors

DIPSIKHA BONIA Department of Agriculture, Krishi Bhawan, G S Road, Khanapara, Guwahati, Assam 781 022, India
ANJAN KRISHNA SARMAH Assam Agricultural University, Borbheta, Jorhat, Assam 785 013, India
N T RAFIQUE Assam Agricultural University, Borbheta, Jorhat, Assam 785 013, India
MARAMI DUTTA Assam Agricultural University, Borbheta, Jorhat, Assam 785 013, India
SANGITA DAS Assam Agricultural University, Borbheta, Jorhat, Assam 785 013, India

https://doi.org/10.56093/ijas.v96i5.169097

Keywords:

Linseed, Rice fallow, Salicylic acid, Sowing dates, Thermal indices, Yield

Abstract

A field experiment was conducted during the winter (rabi) season of 2022–23 at ICR Farm of Assam Agricultural University, Jorhat, Assam to assess the effect of salicylic acid on rainfed late sown linseed under different sowing dates in rice–fallow condition. The experiment was laid out in splitplot design with three sowing dates in main plot and four salicylic acid concentrations in sub-plots. Different sowing dates and salicylic acid concentrations significantly affected the growth and yield of linseed. Although sowing on 20th
November was most favourable for linseed growth and yield, application of salicylic acid @100 ppm at pre-flowering and seed ball formation stage improved crop performance even under late sowing condition. Thus, salicylic acid application @100 ppm may be recommended as a crop management strategy to mitigate the effects of delayed sowing of linseed in rainfed rice–fallow condition.

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