Influence of seed size and aging on seedling growth and field establishment of lentil (Lens culinaris Medik)

Kazem Ghassemi-Golezani

golezani@gmail.com
Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran (Iran, Islamic Republic of)

Afsaneh Chadordooz-Jeddi


Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran (Iran, Islamic Republic of)

Saeid Zehtab-Salmasi


Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran (Iran, Islamic Republic of)

Shahin Oustan


Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran (Iran, Islamic Republic of)


Abstract

A sub-sample of lentil (Lens culinaris Medik. cv. Kimia) seeds was kept as bulk (S1) and the other seeds were separated by a sieve with four millimeters diameter. Consequently, three seed lots including bulk (S1), large (S2) and small (S3) seeds were obtained. Seeds of each size  were divided  into three sub-samples. A sub-sample was kept  as control or high vigor seed lot (A1). The other two sub-samples with about 20% moisture content were artificially aged at 40°C for 2 and 4 days (A2  and A3, respectively). These seeds were evaluated in laboratory and field during 2011 and 2012 as factorial experiments on the bases of RCB design. The lowest  mean germination  and emergence times  and the highest  germination  percentage, seedling dry weight and emergence percentage were recorded for high vigor seed lot. Large seeds produced the largest seedlings in comparison with bulk and small seeds. Although, seedling dry weight was reduced with increas- ing seed aging, the lowest reduction was recorded for seedlings from large seeds. The most deteriorated large seeds germinated earlier than those of bulk and small seeds. Early germination of the most deteriorated large seeds resulted in rapid emergence of seedlings in the field. This is also reflected in the highest positive correlation  of mean germination time with mean emergence time. It was concluded that some deleterious effects of seed aging can be reduced by increasing seed size.


Keywords:

aging, field establishment, germination, lentil, seed size

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Published
2012-12-20

Cited by

Ghassemi-Golezani, K. ., Chadordooz-Jeddi, A. ., Zehtab-Salmasi, S. ., & Oustan, S. . (2012). Influence of seed size and aging on seedling growth and field establishment of lentil (Lens culinaris Medik). Plant Breeding and Seed Science, 67, 27–36. Retrieved from http://ojs.ihar.edu.pl/index.php/pbss/article/view/302

Authors

Kazem Ghassemi-Golezani 
golezani@gmail.com
Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Iran, Islamic Republic of

Authors

Afsaneh Chadordooz-Jeddi 

Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Iran, Islamic Republic of

Authors

Saeid Zehtab-Salmasi 

Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Iran, Islamic Republic of

Authors

Shahin Oustan 

Department of Plant Eco-Physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran Iran, Islamic Republic of

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