Selection of near Infrared Wavelengths Using Genetic Algorithms for the Determination of Seed Moisture Content

2003 ◽  
Vol 11 (6) ◽  
pp. 433-446 ◽  
Author(s):  
Torbjörn A. Lestander ◽  
Riccardo Leardi ◽  
Paul Geladi
Keyword(s):  
Genetic Algorithms ◽  
Moisture Content ◽  
Near Infrared ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Infrared Wavelengths ◽  
Selection Of

Determination of seed moisture content in ginseng (Panax ginseng C.A. Mey)

2014 ◽  
Vol 42 (3) ◽  
pp. 444-448
Author(s):  
H. Zhang ◽  
S.Q. Xu ◽  
S:Y. Xiao ◽  
Y.P. Wang
Keyword(s):  
Moisture Content ◽  
Panax Ginseng ◽  
Seed Moisture Content ◽  
Seed Moisture

Determination of seed moisture content in small-seeded pasture legumes

1987 ◽  
Vol 27 (3) ◽  
pp. 377 ◽  
Author(s):  
GB Taylor
Keyword(s):  
Moisture Content ◽  
Seed Moisture Content ◽  
Constant Weight ◽  
Reliable Technique ◽  
Seed Testing ◽  
Moisture Contents ◽  
Pasture Legumes ◽  
Seed Moisture ◽  
Improved Technique

An improved technique for the determination of seed moisture content in small-seeded annual legumes is described. Changes in weight of permeable and impermeable seed of Medicago truncatula, M. polymorpha and Trifolium subterraneurn, which were either left intact or cut in half, were measured in air-ovens at 105 and 130�C. Drying intact seeds for 1 h at 130�C, as specified by the International Seed Testing Association, seriously underestimated moisture content in most seed samples. Seeds dried to approximately constant weight at 130�C appeared to overestimate moisture contents by about 1%, presumably because of volatilisation losses of material other than unbound water. At 105�C, halved seeds lost weight rapidly during the first day then slightly gained weight for several days before resuming a gradual weight loss. Drying intact seeds of M. truncatula and T. subterraneurn at 105�C for 2 days gave seed moisture contents similar to those obtained from halved seeds. Intact impermeable seeds of M. polymorpha were very much slower than those of the other species to lose weight. taking 14 days to approach an apparent moisture content close to that of halved seeds. Drying halved seeds for 24 h at 105�C appears the most reliable technique.

scholarly journals Determination of the moisture content of white and yellow corn from ohaji in imo state of nigeria using the dry-weight technique

2018 ◽  
Author(s):  
Offurum Julius Chigozie ◽  
C.M. Morgan
Keyword(s):  
Moisture Content ◽  
Dry Weight ◽  
Mean Value ◽  
Seed Moisture Content ◽  
Imo State ◽  
Yellow Corn ◽  
Seed Moisture ◽  
The Mean ◽  
High Constant Temperature

The water content determination of two maize species (Yellow corn- and White corn- ) located at Ohaji in Imo State of Nigeria were  considered in this study. This was motivated by the regular reported cases of the seed post-harvest spoilages, especially in the local communities. And the moisture content of a particular seed could vary according to the various location of crop, presumably due to the soil texture. The moisture content of a given crop seed can influence its storage value, as well as its choice of selection during manufacturing processes. It was, thus, necessary to determine the moisture content of the two maize species (white and yellow corn) from Ohaji in Imo State of Nigeria, in order to identify their dispositions, especially during storage. Modified High Constant Temperature Oven method, as prescribed by the International Seed Testing Association (which involves preliminary pre-drying and grinding), was employed, at a temperature of 102oC. This involved the use of dry-weight technique, which is expressed as a percentage of the dry weight of the seeds. The procedure for each sampling was replicated accordingly, and the mean value identified as the actual result. The moisture content for Sample A (white corn) was found to be 31.7%, while that of Sample B (yellow corn) was found to be 21.5%, which shows that the yellow corn would always have longer storage value than the white corn. As any change in the seed moisture content has a way of affecting its storage life, it is advisable not to store the white corn longer than it could be applied in the yellow corn for a better storage value.Keywords: Determination, Moisture Content, White Corn, Yellow Corn, Dry-weight Basis

RF sensing of grain and seed moisture content

2001 ◽  
Vol 1 (2) ◽  
pp. 119 ◽  
Author(s):  
S.O. Nelson ◽  
S. Trabelsi ◽  
A.W. Kraszewski
Keyword(s):  
Moisture Content ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Rf Sensing

Seed development in Malva parviflora: onset of germinability, dormancy and desiccation tolerance

2007 ◽  
Vol 47 (6) ◽  
pp. 683 ◽  
Author(s):  
Pippa J. Michael ◽  
Kathryn J. Steadman ◽  
Julie A. Plummer
Keyword(s):  
Moisture Content ◽  
Seed Development ◽  
Desiccation Tolerance ◽  
Dry Weight ◽  
Physical Dormancy ◽  
Seed Moisture Content ◽  
Physiological Maturity ◽  
Seed Moisture ◽  
Physiological Dormancy ◽  
Malva Parviflora

Seed development was examined in Malva parviflora. The first flower opened 51 days after germination; flowers were tagged on the day that they opened and monitored for 33 days. Seeds were collected at 12 stages during this period and used to determine moisture content, germination of fresh seeds and desiccation tolerance (seeds dried to 10% moisture content followed by germination testing). Seed moisture content decreased as seeds developed, whereas fresh (max. 296 mg) and dry weight (max. 212 mg) increased to peak at 12–15 and ~21 days after flowering (DAF), respectively. Therefore, physiological maturity occurred at 21 DAF, when seed moisture content was 16–21%. Seeds were capable of germinating early in development, reaching a maximum of 63% at 9 DAF, but germination declined as development continued, presumably due to the imposition of physiological dormancy. Physical dormancy developed at or after physiological maturity, once seed moisture content declined below 20%. Seeds were able to tolerate desiccation from 18 DAF; desiccation hastened development of physical dormancy and improved germination. These results provide important information regarding M. parviflora seed development, which will ultimately improve weed control techniques aimed at preventing seed set and further additions to the seed bank.

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