Navigation Links
Optimizing yield and fruit size of figs

SOUTH AFRICAThe common fig is a subtropical, deciduous fruit tree grown in most Mediterranean-type climates. Although some believe that figs may be the oldest cultivated fruit species on earth, global expansion of fig crops has been hindered by the narrow research base pertaining to production practices and the limited number of fig cultivars currently available. Recently, three black figs were established in the Mediterranean-type climate of Western Cape Province of South Africa to provide fruit for fresh markets throughout South Africa and Europe.

Hein J. Gerber, Willem J. Steyn, and Karen I. Theron from the Department of Horticultural Science at South Africa's University of Stellenbosch reported on a study they conducted on three fig cultivars in HortScience. The research, conducted as part of Gerber's MScAgric degree requirements, was developed to establish the optimum 1-year-old shoot length to maximize fig fruit yield and quality.

"To maximize yield of good-quality fruit, the most productive shoot lengths (in terms of yield and fruit size) should be determined and strategies devised to maximize the number of these shoots on trees on an annual basis. It is important to study the phenological characteristics of a cultivar to establish optimum shoot characteristics", said Theron, corresponding author of the study. "The objective of our research was to identify the most suitable types of shoots and complete a detailed, comparative study of processes such as budbreak, shoot growth, and yield for each shoot length category."

For the study, the number of fruit, budbreak, and shoot growth on one-year-old shoots in four length categories were evaluated for 'Bourjasotte Noire', 'Col de Damme Noire', and 'Noire de Caromb' fig cultivars ('Bourjasotte Noire': 10-15, 25-40, 50-65, and 75+ cm; 'Col de Damme Noire' and 'Noire de Caromb': 10-20, 30-50, 60-80, and 100+ cm). Results showed that for 'Bourjasotte Noire', all four categories were suited for reproduction in the current season and provided sufficient new shoot growth to ensure a fair yield the next season. For 'Col de Damme Noire', one category (category four) showed the best 1-year-old shoot length for reproduction, both in terms of fruit number and fruit size, but the researchers cautioned that "yield on these shoots may not be optimal the next season, because current-season shoots are too short. This cultivar will require pruning to stimulate strong new shoot growth that will ensure regular, high yields", they said. In 'Noire de Caromb', category one shoots proved very productive relative to their length.

Theron noted that the results will allow researchers to develop effective pruning strategies to ensure a balance between current-season yield and the development of new fruiting wood that will guarantee regular, high yields. The findings also suggest that the three cultivars will require "differential application" of horticultural practices to attain regular, high yields of large fruit.

The researchers concluded that although not all fig cultivars bear fruit on the same shoot types, it appears as if a wide range of shoot lengths is productive.


Contact: Michael W. Neff
American Society for Horticultural Science

Related biology news :

1. Optimizing climate change reduction
2. Vitiligo skin disorder could yield clues in fight against melanoma
3. Scientists identify gene that may contribute to improved rice yield
4. Research about plant viruses could lead to new ways to improve crop yields
5. Proteomics study yields clues as to how tuberculosis might be thwarting the immune system
6. Pollinator decline not reducing crop yields just yet
7. Modified plants may yield more biofuel
8. Research yields new clues to how we locate objects in space
9. Mixing genomics and geography yields insights into life and environment
10. Plant soybean early to increase yield
11. Identifying mega-targets for high-yield plant breeding
Post Your Comments:
Related Image:
Optimizing yield and fruit size of figs 
(Date:6/1/2016)... June 1, 2016 Favorable Government ... Administration and Criminal Identification to Boost Global Biometrics System ... released TechSci Research report, " Global Biometrics Market ... Forecast and Opportunities, 2011 - 2021", the global biometrics ... 2021, on account of growing security concerns across various ...
(Date:5/9/2016)... 2016 Elevay is currently known ... freedom for high net worth professionals seeking travel for ... connected world, there is still no substitute for a ... sealing your deal with a firm handshake. This is ... advantage of citizenship via investment programs like those offered ...
(Date:4/26/2016)... DUBLIN , April 27, 2016 ... of the  "Global Multi-modal Biometrics Market 2016-2020"  report ... ) , The analysts forecast ... a CAGR of 15.49% during the period 2016-2020.  ... a number of sectors such as the healthcare, ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June, 23, 2016  The Biodesign Challenge ... envision new ways to harness living systems and biotechnology, ... Art (MoMA) in New York City ... 130 participating students, showcased projects at MoMA,s Celeste Bartos ... Paola Antonelli , MoMA,s senior curator of architecture and ...
(Date:6/23/2016)... ... 2016 , ... Supplyframe, the Industry Network for electronics hardware ... . Located in Pasadena, Calif., the Design Lab’s mission is to bring together ... built and brought to market. , The Design Lab is Supplyframe’s physical representation ...
(Date:6/23/2016)... ... , ... In a new case report published today in STEM CELLS Translational ... lymphedema after being treated for breast cancer benefitted from an injection of stem cells ... this debilitating, frequent side effect of cancer treatment. , Lymphedema refers to ...
(Date:6/23/2016)... 23, 2016  Blueprint Bio, a company dedicated to ... medical community, has closed its Series A funding round, ... "We have received a commitment from Forentis ... need to meet our current goals," stated Matthew ... runway to complete validation on the current projects in ...
Breaking Biology Technology: