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:2/12/2019)... ... February 12, 2019 , ... Ava, a 115-pound Newfoundland, ... partially tore one of her cruciate ligaments. Just one year later, she suffered ... was able to recover without surgical intervention and resumed her normal activities without any ...
(Date:2/11/2019)... , ... February 11, 2019 , ... ... Data Model (ADM), completing the phased release of the Allotrope™ Framework for standardizing ... combines with the previously released Allotrope™ Data Format (ADF) and application programming interfaces ...
(Date:2/2/2019)... ... January 31, 2019 , ... ... , geared toward clinical operations executives and focusing on all facets of clinical ... effective project management, portfolio management, resource management, patient engagement, and more. , ...
Breaking Biology News(10 mins):
(Date:2/14/2019)... ... February 14, 2019 , ... Leak ... systems for the pharmaceutical, biotechnology and food industries, formally announced today the appointment ... Mulhall has been named Chief Executive Officer and will oversee all aspects ...
(Date:2/6/2019)... ... 05, 2019 , ... Firmex announced today that VERTU Capital ... Firmex, one of the fastest-growing and most widely-used providers of virtual data rooms ... financing was provided by the Bank of Montreal. , Headquartered in Toronto, Canada, ...
(Date:2/2/2019)... ... January 31, 2019 , ... Dust off your Doc Martens, ... hosts the Nuriv 2019 Expo West Music and Tech Festival at the ESports Arena ... innovation in the natural foods, beverages, and dietary supplement industries, the Nuriv Music and ...
(Date:2/2/2019)... , ... February 01, 2019 , ... ... to announce the appointment of its new CEO, Julien Dert, being effective on ... of international experience in finance and management, in which more than 12 years ...
Breaking Biology Technology: