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คณะเกษตรศาสตร์ มหาวิทยาลัยเชียงใหม่

 

  ISSN: 0857-0841 (Print)
  ISSN: 2630-029X (Online)
 


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"Article Journal of Agriculture"
Volume 34 Issue 3 September 2018 , ISSN 0857-0841
Title. : Effects of Seed Treatment with Plant Growth Promoting Bacteria on Germination and Growth of Lettuce
Author : Jakkrapong Kangsopa, Russell K. Hynes and Boonmee Siri
Page : 385-397
index word : เมล็ดพันธุ์ผักกาดหอม(Lettuce seed) seed treatments จุลินทรีย์(probiotic) คุณภาพเมล็ดพันธุ์(seed quality)
Abstract:
The application of seed treatment with microbial probiotics for plant growth promotion plays an important role in optimizing the use of seeds for maximum benefit. The purposes of this experiment were to evaluate seed treatment with microbial probiotics plant growth promotion of lettuce seeds, and tracking germination and seedling growth and cultivation in soilless culture conditions. The experiment was carried out at the Agriculture and Agri-Food Canada (AAFC), Canada. This study was divided into two experiments: The first experiment was carried by selected two microorganisms: Pseudomonas fluorescens 31-12 and Bacillus subtilis. Each type of microorganism was used for seed treatment consisting of soaking, coating, and pelleting, and then the germination and seedling growth were examined. The laboratory results revealed that seed germination was not significantly different. However, seed coating and pelleting with P. fluorescens 31-12 had the best shoot length, at 41.16 and 41.23 mm, respectively, and seed pelleting with B. subtilis had the best root length of 124.26 mm. The greenhouse results revealed that seed coating and pelleting with P. fluorescens 31-12 had the best shoot length of 60.10 and 57.85 mm, respectively, and had the best shoot fresh weight of 747.72 and 743.06 mg, respectively. The seed pelleting with P. fluorescens 31-12 had the best shoot dry weight of 28.83 mg and there was significantly different compared to untreated seed. The second experiment, selected coating and seed pelleting with P. fluorescens 31-12 to cultivate in soilless culture conditions. The results showed that seed coating and pelleting with P. fluorescens 31-12 had better leaf fresh weight, leaf dry weight, root fresh weight, and root dry weight, and there were significantly different when compared to untreated seeds.
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