Standardization of Cob Drying Technology for Maintaining Vigour Potential of Maize Seeds
125 / 69
Authors
-
V MANONMANI
Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu-641003, India
Author
-
S SUBITHRA
Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu-641003, India
Author
-
S AMBIKA
Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu-641003, India
Author
Keywords:
Maize, harvest stage, drying temperature, durationAbstract
An investigation was carried out with maize to evaluate the optimum stage of cob maturity, duration of drying and drying temperature for maintaining the germination and vigour potential of maize seeds in storage. The maize cobs harvested at different maturity stages viz. 95-100 days after sowing, 100-105 days after sowing and 105-110 days after sowing were subjected to mechanical drying at various temperatures viz., 40°C, 45°C, 50°C and 55°C along with sun drying. To optimize the duration of drying, the cob moisture content was recorded at every two hours interval up to the safe seed moisture content of 12%. The maize cobs subjected to various drying temperatures of 40°C and 45°C taken lesser duration for drying compared to sun drying (50 h). However, the minimum duration of drying was recorded in 50°C (24 h) followed by 55°C (18 h). Maize cobs harvested at 100-105 days after sowing and dried at 40°C outperformed other drying treatments by recording higher viability,
germination and vigour with low mechanical injury.
Downloads
References
ABDUL-BAKI AA AND JD ANDERSON (1973). Vigour
deterioration of soybean seeds by multiple criteria. Crop
Science, 13: 630-633.
PHILPOT R (1976). Principle and practices of drying. In: Proc.
Miss. State University Snot Course, Seeds, 16: 23-40.
HILL MJ (1982). In: Hor Yue Luan, editor. Proceedings 3rd
Regional Seed Technology Workshop for ASEAN and the
Pacific.
PANSE VG AND PV SUKHATME (1985). Statistical methods
for Agricultural workers. ICAR, Publication, New Delhi, 327-
JAVAREGOWDA S, KC TALUKDAR AND H RAMAIH (1990).
Effect of drying methods on seed quality in tomato. Seed
Research, 18: 126-1629.
ARINZE EA, JS SOKHANSANJ, GJ SCHOENU AND FG
TRAUTTMANsdorff (1996). Experimental evaluation,
simulation and optimization of a commercial heated-air batch
hay drier functional performance, product quality, and
economic analysis of drying. Journal Agricultural Engineering
Research, 63: 301-314.
ISTA (1999). International Seed Testing Association.
International rules for seed testing. Seed Science and
Technology, 27: 27-32.
NAUM F (2004). Solar energy: principles and applications.
Universidade Federal Rural de Pernambuco., 32.
ARUN S, K VINOTH KUMAR AND P KUMARAN (2014).
Experimental and comparison studies on drying characteristics
of green chilies in a solar tunnel greenhouse dryer and in the
open sun drying method. Blue Eyes Intelligence Engineering
and Science Publication, 2(36): 2319-6386.
India maize summit (2014).
