Author: George Haas Page 3 of 5
Author for BASA website beginning on December 17, 2016.
Warning: For your consideration, while bacteria and fungi of this product are beneficial to your plants, the same is not true for you. Those agents can be infectious for humans. They are common and we unknowingly encounter them in our gardening and potting of plants. Practice standard sanitary procedures to protect yourself. This product is dry and a bit dusty, be careful when handling that the dust or the liquid mix does not get in your eyes, nose or mouth, or cuts or sores you may have on your hands or arms. Just use reasonable precautions when using the product. Always read the instructions and caution labels.
Mary purchased a new product which has gained wide use by members of the North American Clivia Society. Clivias, even more than azaleas are subject to root rot, and this seems to be an important step in controlling the problem. It is produced by Real Growers (link below) of Fort Collins, Colorado. That is the home of Colorado State University (the old Colorado A&M), an important research university. I am sure, with Colorado’s legalizing marijuana, that this product was developed for that market. It is called ‘Recharge – Professional Strength Microbial Superpack’. I believe it could be quite useful to California azalea growers as our climate is very favorable to the growth of the various fungi that may cause root rot. Its best use is as a preventative, or after the application of anti-fungal chemicals that often deplete the soil in pots of the good fungi as well as the bad. The product is fairly expensive, the basic containers 8 ounces, 16 ounces and 5 pounds, and is used at the rate of 2.5 grams per gallon of water, applied I noted that the label calls for continuous or frequent use every 7 to 10 days. And I also think that is intended for the commercial growers, probably using flow through watering and fertilizing systems. For our purposes I think use with regular periodic feedings would be very adequate. All we really need is the agents be introduced into our potting soil. They should be self-sustaining and in fact thrive unless there are unusual circumstances such as extreme temperatures or the introduction of fungicides or anti-biotics. One 16 oz. container will make about 160 gallons of solution.
Perhaps we could find a way to split a container among those that might be interested. The contents include spores of six fungi and starting colonies of four bacillus. I’m going to use some of Mary’s on my azaleas, particularly as I repot them, or if any show signs of trouble I’ll keep a record so I can report in the product efficacy from my experience. From the label – “This product is intended to be used as a soil amendment to establish colonies of beneficial bacteria (and fungi) in horticultural systems.” Also available from Amazon, but what isn’t!
– – Don Meeker
Recharge is loaded with mycorrhizae and Trichoderma fungi as well as the strongest microbe package available anywhere. We add organic goodies including kelp, molasses, humic acid, fulvic acid and amino acids to develop a healthy colony of living soil microbes. Undiluted, uncut and delivered at true professional strength concentrations.
The Bonsai Garden at Lake Merritt (BGLM) has been raising funds for its Garden Revitalization Project (GRO) for months. To date, over 50% of the $100,000 goal has been contributed to revitalizing our Bonsai Garden museum. But, there is more to do. This project aims to upgrade the display benches and stands, watering system, pathways, add windows and much more, in order to meet the challenges of caring for and maintaining the historic and legacy bonsai collection in a professional and museum quality manner.
BGLM has recently initiated a commemorative brick fundraising drive in which individuals, clubs and businesses can purchase a variety of laser engraved bricks for $150, $250 or $500, and the proceeds will help fund the GRO Project. The engraved bricks will last a lifetime and rest in a place of honor at the entrance to the Bonsai Garden. For information on the bricks click here: Commemorative Bricks.
Another method of contributing funds to the GRO Project is to simply donate any amount through the Bonsai Garden at Lake Merritt’s crowd funding website – YouCaring.
Your help is greatly appreciated!
The Bonsai Garden at Lake Merritt has been raising funds for its Garden Revitalization Project (GRO). This project aims to upgrade the display benches and stands, watering system, pathways, and much more, in order to meet the challenges of caring for and maintaining the historic and legacy bonsai collection in a professional and museum quality manner.
As part of this, they have initiated a recognition brick fundraiser drive in which individuals, clubs and businesses can purchase a variety of state of the art engraved bricks, and the proceeds will go towards the GRO Project. GRO projects include laying cement pavers for all pathways within the Bonsai Garden, and the engraved bricks will line a special pathway.
For information http://www.gsbf-lakemerritt.org/wp-content/uploads/2017/09/Bonsai-Garden-of-Lake-Merritt-Brick-Flyer-09-11-17.pdf
ReIncreased levels of AUX/IAA19, which indicate an activation of auxin signaling, were observed in the cut-end of root-cut plants compared to intact plants. Scale bar = 0.1 mm. Credit: Xu D. et al., Plant and Cell Physiology, September 1, 2017.
The molecular mechanism behind root regeneration after root cutting in plants has been discovered. A finding which could lead to the development of new methods for regulating plant growth in agriculture and horticulture.
A plant’s root system is highly regenerative. It plays a critical role in absorbing water and nutrients from the soil and therefore its loss can be an immediate threat to their lives. The plasticity of the root system also helps plants adopt to adverse conditions such as draught. An agricultural technique called root pruning, or root cutting, uses this natural robustness to control plant growth. It has also been used in horticulture to control plant size and vigor as seen in Bonsai.
Previous studies have suggested that root regeneration occurs through the induction of lateral root (LR) formation, and that auxin, a well-studied growth hormone involved in various processes of plant development, plays a role in the process. However, the molecular mechanism behind root regeneration has remained largely unknown.
According to a new study published in Plant and Cell Physiology, scientists have identified for the first time that YUCCA9, one of the eleven YUCCA genes involved in auxin synthesis, plays a primary role in root-system regeneration.
Using Arabidopsis as a model, the research team led by Associate Professor Masaaki Watahiki of Hokkaido University found that root cutting induces both LR formation and the growth of existing roots. Experiments investigating gene expressions and using mutants identified YUCCA9 as the primary gene responsible for auxin biosynthesis during root-system regeneration after root cutting. In collaboration with Professor Masashi Asahina of Teikyo University, the team also found an evident increase in the level of auxin after cutting.
Auxin commonly shows an uneven distribution in plant bodies as a result of polar transportation, leading to gravity – or light-induced bending of the plant. The team found that the polar transport system is required for root regeneration as well.
Interestingly, the team revealed that the defective LRs of some auxin signaling mutants can be recovered by root cutting, suggesting the robustness of the auxin signaling induced by root cutting. They also showed a redundancy of auxin biosynthesis genes by mutant analysis.
“We identified the primary gene of auxin biosynthesis which is responsible for root regeneration upon root damage. This finding could lead to the development of new methods for suppressing or enhancing root regeneration, and thus controlling plant growth in agriculture and horticulture,” says Masaaki Watahiki
More information: Dongyang Xu et al, YUCCA9-Mediated Auxin Biosynthesis and Polar Auxin Transport Synergistically Regulate Regeneration of Root Systems Following Root Cutting, Plant and Cell Physiology (2017). DOI: 10.1093/pcp/pcx107
Provided by: Hokkaido University
During the 8th World Bonsai Convention, Saitama City, Japan, this past April 27-30, 2017, Master Bonsai Artist Shigeo Isobe performed a demonstration on a Satsuki Azalea bonsai. He started with an overgrown, bushy, mature Satsuki Azalea bonsai. Master Isobe demonstrated how much pruning a Satsuki Azalea bonsai can be done. The photograph below depicts the completed demonstration Satsuki Azalea bonsai.