Phytochemical screening and antioxidant activity of Elaeocarpus serratus L. of Assam

Abstract

A field experiment was conducted during kharif 2015 at Raj Mohni Devi College of Agriculture and Research Station, Ambikapur, Chhattisgarh. The experiment was laid in split plot design replicated thrice to assess the performance of two aromatic rice varieties (Jeerafool and Pusa Basmati-1) in main plots and to find the best management practices with seven nutrient management practices (N1- 20×10 cm with RDF (60:50:50 NPK kg ha-1), N2- 20×15 cm with RDF + 5t FYM ha-1, N3- 20×15 cm with RDF + 5t FYM ha-1 + 5t GM (Green Manure) ha-1, N4- 20×15 cm with 75% RDF + 10t FYM ha-1, N5- 20×15 cm with 50% RDF +10t FYM ha-1+ 10t GM ha-1 + Mechanical weeding, N6- 20×15 cm with 50% RDF + 10t FYM ha-1 + 10t GM ha-1 + Mechanical weeding + Silicon spray + ZnSo4, N7- 20×15 cm with 150% N + 10t FYM ha-1 + Staking) in sub- plots. The results revealed that aromatic rice Jeerafool recorded significantly higher plant height (137.4 cm), panicle length (26.71cm), number of grains panicle-1 (276.14), panicle weight-1 (2.31 g), grain yield (3.94 t ha-1), straw yield (4.88 t ha-1), biological yield (8.82 t ha-1) and B:C ratio (1.65) whereas the number of total tillers (489.4 m2), number of total panicle (396.3 m2) and 1000-grains weight (25.31 g) was recorded in Pusa Basmati-1. Among the different nutrient management practices, 20×15 cm with 150 % N + 10 t FYM ha-1 + Staking, resulted higher plant height (123.2 cm), number of total tillers (470.7 m2), number of total panicle (383.3 m2), panicle length (26.0 cm), number of grains panicle-1(213.33), panicle weight-1 (2.32g), 1000-grains weight (19.32 g), grain yield (4.3 t ha-1), straw yield (4.86 t ha-1), biological yield (9.16 t ha-1) and B:C ratio (1.98)