Navigation Links
Laser technology sorting method can improve Capsicum pepper seed quality
Date:10/21/2013

USAK, TURKEY -- The high cost of vegetable crop seeds--hybrids in particular--has led growers to seek out new precision seeding and transplant production systems. The quality of vegetable seed lots can be affected by a variety of pre-storage and post-storage factors, so finding ways to improve seedling emergence percentages and uniformity is critically important for producers. A new study from scientists in Turkey and The Netherlands (HortScience, August 2013) showed that chlorophyll fluorescence (CF) can be used successfully to improve quality in Capsicum pepper seed lots.

According to the authors of the study, peppers' (Capsicum annuum L.) habit of nonsynchronous seed production means that pepper fruits that are produced from different flowering times mature at different periods, thus resulting in different quality seeds. "Pepper seed lots may consist of a mixture of less mature and fully mature seeds as a result of differences in flowering times," they explained, adding that this wide variation in a single lot can reduce overall seed quality. "Less mature seeds germinate more slowly and produce smaller seedlings, whereas mature seeds emerge faster and produce larger seedlings. This variation in seed maturity ultimately results in variations in plant growth and development."

The research team set out to find a way to separate out less mature seeds in order to enhance the overall quality of pepper seed lots using a method called chlorophyll fluorescence, which has been used successfully to detect and sort other types of seeds. The nondestructive technique uses laser technology, narrow optical bandwidth filters, and detection of chlorophyll in the seed coat to measure the resulting chlorophyll fluorescence (CF) and link it with the quality of the seeds. Chlorophyll fluorescence has been found to be effective for sorting cabbage, tomato, barley, carrot, and pepper seeds.

The researchers evaluated four different Capsicum cultivars at four fruit harvest dates: orange (immature), bright red (half mature), dark red (mature), and dark red and soft (over mature). Seeds were either sorted or non-sorted after harvesting, and standard laboratory germination, seedling emergence, and controlled deterioration tests were conducted. Results showed that chlorophyll fluorescence sorting significantly increased laboratory germination, seedling emergence, and seed vigor. The scientists found that maximum improvements were obtained from seeds harvested from half-mature and mature stages.

"While previous studies evaluated seed quality solely based on laboratory germination tests conducted under optimum germination conditions, our work tested the effect of CF sorting not only on laboratory germination, but also on emergence and physiological aging as indicators of seed vigor," said corresponding author Burcu Begm Kenanoglu. "The results showed that CF sorting affects germination and seed vigor. In our work, CF worked on the four cultivars examined, and this shows that the method may be well suited for Capsicum annuum. Chlorophyll fluorescence has the potential to upgrade seed quality in pepper lots as a nondestructive sorting technology."


'/>"/>

Contact: Mike W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Related biology news :

1. Information conveyed to urologists regarding laser fiber diameter is incorrect, says new study
2. LaserLock Technologies Files A New Provisional Patent Which Secures Player Identity On Internet Gaming Platforms
3. LaserLock Technologies Moves Forward With An Even More Secure Multi-Factor Internet/Mobile Login System
4. CLEO: 2013 press luncheon spotlights new techniques in optofluidics, temporal cloaking, cryolasers
5. CLEO: 2013 -- the Premier International Laser and Electro-Optics Event in San Jose next week
6. Improved material for laser welding of tissue in intestinal surgery
7. Laser liposuction melts fat, results in tighter skin
8. LaserLock Technologies Files for Provisional Patent Enabling Mobile Phones with Anti-Counterfeiting Technology
9. A dual look at photosystem II using the worlds most powerful X-ray laser
10. X-ray laser helps slay parasite that causes sleeping sickness
11. CMU and CTC to develop robotic laser system to strip paint from aircraft
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/25/2017)... The Elements of Enterprise Information Security ... of a comprehensive set of business processes and ... identities and providing a secured and documented access ... number of programs opted by enterprises to maintain ... processes and changing policies. However, there are some ...
(Date:1/24/2017)... -- It sounds simple and harmless—an electronic sensor attached ... and alerts parents on their smart phones if, ... But pediatric experts argue that such devices may ... of medical benefits, especially to healthy babies. ... of healthy babies, promising peace of mind about ...
(Date:1/21/2017)... Research and Markets has announced the addition of the ... ... voice recognition biometrics market to grow at a CAGR of 19.36% ... present scenario and the growth prospects of the global voice recognition ... considers the revenue generated from the sales of voice recognition biometrics ...
Breaking Biology News(10 mins):
(Date:2/22/2017)... ... February 22, 2017 , ... Park Systems , a leader ... for all SPIE attendees and Park customers on Feb. 27, 2017 ... the San Jose Convention Center. The luncheon will feature a talk on Automated ...
(Date:2/22/2017)... , ... February 22, 2017 , ... ... tech innovators, engineers, and scientists from around the world, is pleased to announce ... February 22 and 23, 2017. This premier, online-only conference focused on the development ...
(Date:2/22/2017)... (PRWEB) , ... February 22, 2017 , ... ... that Dr. Daniel Spyker, PhD, MD former Acting Deputy Director in the FDA ... Pilot Drug Evaluation Staff has joined the company as an Expert Consultant. , ...
(Date:2/21/2017)... 21, 2017 /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the "Company") ... for the three months ended December 31, 2016. ... sciences and diagnostics company that develops and commercializes proprietary technologies ... ... on the commercial milestones achieved in fiscal 2016," said ...
Breaking Biology Technology: