EFFECTS OF SALICYLIC ACID ON GROWTH, YIELD AND NUTRIENTS CONTENT OF OKRA DIFFERENT LEVELS OF SALINITY

Abstract

A pot experiment was conducted at the net house of Agro-Environmental Chemistry Laboratory of the Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka-1207, during the period from March 2019 - October 2019 to find out the effects of salicylic acid on growth, yield and nutrients content of okra -1 and Factor- 2. Rate of salicylic acid: 0 mM, 0.75 mM and 1.5 mM. BARI Dherosh-2 was used as the test crop. Data were taken onplant height, number of branches and leaves plant -1 , length of leaves, number of flowers plant -1 , number of fruits plant -1 , individual fruit weight as well as fruit yield plant -1 , fresh weight of shoot and dry weight of shoot, N, P and K content in fruit, shoot and root. When single effect was considered, salinity adversely affected most of the growth and yield parameters and nutrient content, but application of salicylic acid elevated all the mentioned parameters except plant height. When combined effect was considered, maximum plant height -1

0 SA at final harvest, number of branches plant -1

-1

1.5 -1

-1

6 SA treatment, whereas the minimum plant height 12 SA 1.5 1.5 , number of branches plant

-1

-1

-1

12 SA treatment. In all the salinity levels, it was found that foliar application of salicylic acid reduce adverse effect of salt stress. Such as at S 12 0 salinity level minimum fruit yield plant -1