Foliar application of liquid biofertilizer of brown alga Stoechospermum marginatum on growth, biochemical and yield of Solanum melongena

سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 402

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شناسه ملی سند علمی:

JR_ROWA-4-3_002

تاریخ نمایه سازی: 4 خرداد 1395

چکیده مقاله:

Background Seaweed extracts are used as nutrient supplements,biostimulants and or biofertilizers as an alternativeto chemical fertilizers in agriculture. The study wasset up to evaluate the biofertilizing efficiency of liquidextracts of brown marine alga Stoechospermum marginatumon growth, biochemical and yield of brinjal, a vegetablecrop. To achieve the objectives, liquid extracts atdifferent concentrations were prepared and applied as foliarspray on the brinjal seedlings raised in experimental potsmaintained under natural conditions.Results After 30 and 180 days, the growth and biochemicalparameters and yield attributes were monitored,respectively. The results exhibited that shoot and rootlength, total fresh and dry weight, leaf area and the contentof moisture, photosynthetic pigments, protein, amino acids,reducing sugar, ascorbic acid and nitrate reductase activitywere found to be enhanced in the leaves of brinjal plantswhich received 1.5 % of Stoechospermum marginatumextracts. Similarly, number of fruits and fruit weight werealso increased at lower concentration only (1.5 %). Incontrast, liquid extracts at high concentration (5 %) wasfound to have inhibitory effect on brinjal plants as comparedto the control sprayed with water.Conclusions The study evidence that lower concentrationswere found to show promoting effect on growth and productivityof brinjal plants. The fertilizing efficiency of liquidextracts of testing marine alga might me due to the presenceof micro and macro nutrients, growth hormones and vitaminsat preferential levels. It can be concluded that seaweed extractscould be used as eco-friendly liquid biofertilizer tosubstitute chemical fertilizer and also play a pivotal role inorganic farming practices toward sustainable agriculture.

کلیدواژه ها:

Seaweed extract Liquid biofertilizer Stoechospermum marginatum Growth Biochemical Yield Brinjal

نویسندگان

S Sivansangari Ramya

Department of Biochemistry, Sri Sarada Niketan College for Women Amaravathipudur, Karaikudi, India

N Vijayanand

Department of Botany, Arumugam Pillai Seethai Ammal College, Tiruppattur, India

S Rathinavel

Centre for Research in Botany, Saraswathi Narayanan College (Autonomous), Madurai, India