PJB-2018-1016
AMELIORATION EFFECT OF SILICON ON THE GROWTH AND YIELD OF RICE UNDER DIFFERENT SALINITY LEVELS IN ARIDISOLS
AMEER HAMZA
Abstract
A greenhouse pot study was conducted at research area of University College of agriculture university of Sargodha to explore the amelioration effect of silicon on the growth and yield of rice (Oryza sativa L.) under different salinity levels in aridisol. The research was statistically carried out by using completely randomized block (CRD). Aqueous solution of silicon having concentration 5 mM and 10 mM with salinity level of 50mM NaCl and 100 mM NaCl were used. 27 days rice seedlings (Chenab Basmati) were transplanted in pots of 10kg of sowing. The application of Silicon application in soil and uptake of silicon from soil to leave as recorded. The highest amount of Silicon was observed in T5 (10 mM Si) and uptake by the leave. T3 was the least uptake concentration by the rice leaves. These variations in Si in soil and uptake by rice plant have direct effects on rice growth. Completely randomized design was used. Maximum and minimum plant height was recorded under silicon treatment T5 (10 mM Si), T3 (100 mM NaCl) respectively. While the maximum and minimum number of tillers was observed under silicon treatment T5 (10 mM Si) and T3 (100 mM NaCl) respectively. The maximum straw yield was recorded under silicon treatment T5 (10 mM Si) while minimum straw yield was observed under treatment T3 (100 mM NaCl). Along with these parameters the maximum and minimum total plant biomass was recorded under silicon treatment T5 (10 mM Si), T3 (100 mM NaCl) respectively. Yield was also improved by application of silicon as in T5 (10 mM Si) and minimum under treatment T3 (100 mM NaCl). Silicon concentration is crucial to improve growth and yield of rice. Keywords: Sodium Chloride, Potassium Silicate, Oryza sativa L.
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