Response of seed reserve utilization and its associated traits in rice genotypes

P. Mounika; P. Senguttuvel; K. Jhansi rani; P. Sujatha; M. Pallavi

EMERGENT LIFE SCIENCES RESEARCH - Vol 8, Issue 2, Published on 31, December 2022

Pages: 222-228
Print Article Download XML Download PDF

Response of seed reserve utilization and its associated traits in rice genotypes

Author: P. Mounika, P. Senguttuvel, K. Jhansi rani, P. Sujatha, M. Pallavi

Category: Research Article

Abstract:

An experiment on seed reserve utilization using seven rice genotypes was conducted at the Department of Seed Science and Technology, PJTSAU, Rajendranagar, Hyderabad in Factorial Completely Randomised Design with three replications during the year 2021. Seed reserve utilization and its associated traits viz., the weight of utilized seed reserve (WUSR), seedling dry weight (SLDW), remnant seed dry weight (RSDW), seed reserve utilization efficiency (SRUE), and seed reserve depletion percentage (SRDP) varied significantly among the genotypes, days to emergence and their interaction. While initial seed dry weight (ISDW) showed significance among genotypes only. About, the interaction between genotypes and days to emergence, significantly high ISDW (23.93 mg/seed), RSDW (530 mg) and SRUE (29.8) and significantly low WUSR (2.10 mg/seed) and SRDP (8.97 %) were recorded in AUS 276 on 6th day, while significantly high WUSR and SLDW were recorded in Dular (11.76 mg/seed) and Moroberekan (206.33 mg) on 14^th day, respectively. Significantly low ISDW (9.30 mg/seed) and SLDW (49.67 mg) on the 6^th day, significantly low RSDW (78.33 mg) and SRUE (14.8), and significantly high SRDP (66.63 %) on the 14^th day was recorded in RNR 15048. The results explain that WUSR, SLDW, and SRDP increased significantly from the 6^th day to 14^th day for all the genotypes indicating the depletion of seed reserves for the growth and development of seedlings, and among the characters studied, WUSR is the most important for conversion into seedling tissue than seed reserve utilization efficiency.

Keywords: rice, remnant seed dry weight, seed reserve depletion, seed reserve utilization, seedling dry weight

DOI URL: https://doi.org/10.31783/elsr.2022.82222228