MADRAS AGRICULTURAL JOURNAL

Influence of Silicon on Physiology and Yield of Rice under Drought Stress

Abstract

                                A field experiment was conducted during kharif season of 2017 at the Department of Rice, Tamil Nadu Agricultural University, Coimbatore, to study the effect of drought on physiology and yield of rice genotypes and to assess the effect of silicon on physiology and yield of rice under drought stress. Seven genotypes of rice were used in study and they were imposed with various treatments viz., control, drought at flowering stage and foliar spray of silicon [Silixol (0.6 %); orthosilicic acid] during drought. Among the various genotypes used for the study, CB13804 recorded the highest total dry matter production (TDMP) and specific leaf weight(SLW) in drought and foliar spray of silicon under drought. Concerning the yield parameters, the higher number of productive tillers was recorded in CB13805 under drought and foliar spray of silicon under drought. The highest grain yield under drought was recorded in CB13804. Based on the various parameters recorded, it has been found that the genotypes CB13804 and Sahbhagi Dhan are promising drought tolerant with minimum reduction in yield and hence can be suggested for drought prone areas, whose yield potential can be increased by the foliar spray of silicon under drought at the flowering stage.

Key words : Rice, Reproductive stage drought, Silicon, Foliar spray, Silixol

Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

EPOE bispyribac sodium @ 25 g a. i. ha-1 (Two to three leaf stages of weeds) fb hand weeding at 35-45 DAS recorded higher cost of cultivation. Thus, in water and labour scarce situation AWDI at 10 cm depletion of water below the soil surface with PE pendimethalin 1kg a. i. ha-1 on 3-5 DAS fb EPOE bispyribac sodium @ 25 g a. i. ha-1 (Two to three leaf stages of weeds) was the best option to get higher productivity in rice.

Key words : Direct seeded rice, Water use efficiency, Weed management, Yield

Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

   Forgot Password
  • Downloads
  • Views
  • Shares
  • Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Mar2018
    Full Text
  • Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.

    therefore always free from repetition

    There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour

    SECTION END-->

    Copyright@2018 The Madras Agricultural Journal | Developed by Crystalpro All right reserved.

    Full Text
    Full Text
    Full Text
    Full Text

    Copyright @ 2019 Madras Agricultural Journal | Developed by Crystalpro All right reserved.