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<img src="http://i668.photobucket.com/albums/vv43/theparc/botanybook.jpg" alt="marijuana botany" title="Marijuana Botany (c) theparc" style="max-width:430px;float:right;padding:10px 0px 10px 10px;border:0px;">The physiological basis for root initiation is well un- derstood and allows many advantageous modifications of rooting systems. Natural plant growth substances such as auxins, cytokinins, and gibberellins are certainly responsible for the control of root initiation and the rate of root for- mation. Auxins are considered the most influential. Auxins and other growth substances are involved in the control of virtually all plant processes: stem growth, root formation, lateral bud inhibition, floral maturation, fruit development, and determination of sex. Great care is exercised in appli- cation of artificial growth substances so that detrimental conflicting reactions in addition to rooting do not occur. Auxins seem to affect most related plant species in the same way, but the mechanism of this action is not yet fully understood.<br />Many synthetic compounds have been shown to have auxin activity and are commercially available, such as napthaleneacetic acid (NAA), indolebutyric acid (IBA), and 2,4-dichlorophenoxyacetic acid (2,4 DPA), but only indoleacetic acid has been isolated from plants. Naturally occurring auxin is formed mainly in the apical shoot men- stem and young leaves. It moves downward after its forma- tion at the growing shoot tip, but massive concentrations of auxins in rooting solutions will force travel up the vas- cular tissue. Knowledge of the physiology of auxins has led to practical applications in rooting cuttings. It was shown originally by Went and later by Thimann and Went that auxins promote adventitious root formation in stem cuttings. Since application of natural or synthetic auxin seems to stimulate adventitious root formation in many plants, it is assumed that auxin levels are associated with the formation of root initials. Further research by Warmke and Warmke (1950) suggested that the levels of auxin may determine whether adventitious roots or shoots are formed, with high auxin levels promoting root growth and low levels favoring shoots.<br />Cytokinins are chemical compounds that stimulate cell growth. In stem cuttings, cytokinins suppress root growth and stimulate bud growth. This is the opposite of the reaction caused by auxins, suggesting that a natural balance of the two may be responsible for regulating nor- mal plant growth. Skoog discusses the use of solutions of equal concentrations of auxins and cytokinins to pro- mote the growth of undifferentiated callus tissues. This may provide a handy source of undifferentiated material for cellular cloning.<br /><br />In case you have virtually any concerns concerning where in addition to how to employ <a href="http://www.amarihuanazuchtvideos.mondebinaire.com/">marihuana zucht videos</a>, you are able to e-mail us on our page.
<img src="http://i327.photobucket.com/albums/k455/simplychic4u/slidefoto1-1-1.jpg" alt="hot item" title="HOT ITEMS (c) simplychic4u" style="max-width:400px;float:left;padding:10px 10px 10px 0px;border:0px;">The Dangers of Online Shopping<br /><br />Although there are many who enjoy online shopping, there are others who have fears about online shopping and do not enjoy this type of shopping. For these shoppers there too many concerns which prevent the shopper from feeling completely comfortable shopping online. Some of these concerns include identity theft, difficulty making returns and misleading product descriptions. This article will address these concerns and offer information about how shoppers can help to avoid these online shopping dangers and feel more comfortable about the process of shopping online. Shopper who are able to put these concerns aside will likely find they actually enjoy the conveniences offered by online shopping. <br /><br />Concerns about Identity Theft<br /><br />Concerns about identity theft are one of the most common concerns for those who are considering shopping online. Identity theft is a very real concern because unscrupulous individuals who acquire sensitive information about an online shopper can do a great deal of damage to the individual’s financial situation and credit score. Although it is usually possible to correct problems which occurs as a result of identity theft the process of making these corrections is usually long and difficult. Additionally, there are some problems which result from identity theft which cannot be corrected especially if the identity theft was undetected for quite some time.<br /><br />While identity theft is a very valid concern, online shoppers are not completely vulnerable to identity theft in most cases. However, the online shopper should know how to determine whether or not the information they provide online is secure or not. This is important because while the risk of identity theft associated with online shopping through a secure website is relatively small, this risk is significantly larger when the website is not secure. For this reason, online shoppers should carefully examine the web address for any website in which they submit sensitive information. Websites which start with https:// as opposed to http:// indicate the information is being submitted through a secure server. Most reputable online retailers will provide a secure website for shoppers but some smaller online retailers may not offer this degree of security. If the server is not secure the shopper should consider calling customer service to place the order instead of submitting the information through the unsecured website. <br /><br />Dealing with Returns<br /><br />Another problem which faces many online retailers is the potential for problems which result from the need to return items purchased online. In most cases the return process with online retailers is quite simple and is not more difficult than returning items to a regular store. In fact online retailers who have a traditional store often allow online shoppers to make returns to these locations instead of shipping the item back to the online retailer. However, returns are not always this easy. In some cases the shopper will be financially responsible for the cost of shipping the item back to the online retailer. This can be costly if the item is oversized and could require pricy insurance if the item is expensive. Online shoppers who have concerns about the return policy for an online retailer should carefully review these policies and inquire if they have any questions about the process before making a purchase. <br /><br />Misleading <a href="http://www.justproducts.mondebinaire.com/">Product</a> Descriptions<br /><br />One final concern many potential online shoppers have about shopping online is encountering misleading product descriptions. This may include product descriptions which are intentionally or unintentionally ambiguous. The concern in this situation is that the shopper will purchase the wrong item or an item which is not as described by the online retailer and the buyer will have difficulty returning the item if necessary. Although this problem may occur there are simple steps the consumer can take to avoid this problem. The simplest solution to this problem is to contact customer service to clarify information about the products offered for sale online. This enables the consumer to speak directly to a representative from the online retailer and verify whether or not the product offered for sale will suit his needs. Based on this information the consumer can then decide to either make the purchase or not.
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The initiation and growth of roots depends upon atmospheric oxygen. If oxygen levels are low, shoots may fail to produce roots and rooting will certainly be inhibited. It is very important to select a light, well-aerated rooting medium. In addition to natural aeration from the atmos- phere, rooting media may be enriched with oxygen (02) gas; enriched rooting solutions have been shown to increase rooting in many plant species. No threshold for damage by excess oxygenation has been determined, although exces- sive oxygenation could displace carbon dioxide which is also vital for proper root initiation and growth. If oxygen levels are low, roots will form only near the surface of the medium, whereas with adequate oxygen levels, roots will tend to form along the entire length of the implanted shoot, especially at the cut end.<br />Oxygen enrichment of rooting media is fairly simple. Since shoot cuttings must be constantly wetted to ensure proper rooting, aeration of the rooting media may be facili- tated by aerating the water used in irrigation. Mist systems achieve this automatically because they deliver a fine mist (high in dissolved oxygen) to the leaves, from where much of it runs off into the soil, aiding rooting. Oxygen enrich- ment of irrigation water is accomplished by installing an aerator in the main water line so that atmospheric oxygen can be absorbed by the water. An increase in dissolved oxygen of only 20 parts per million may have a great in- fluence on rooting. Aeration is a convenient way to add oxygen to water as it also adds carbon dioxide from the atmosphere. Air from a small pump or bottled oxygen may also be supplied directly to the rooting media through tiny tubes with pin holes, or through a porous stone such as those used to aerate aquariums.<br /><br />If you beloved this article so you would like to get more info relating to <a href="http://www.themarijuanagrowingbooks.mondebinaire.com/">marijuana growing books</a> kindly visit our web site.
<img src="http://i994.photobucket.com/albums/af62/bkppic/Mypicx.jpg" alt="quality brand" title="Brand (c) bkppic" style="max-width:440px;float:left;padding:10px 10px 10px 0px;border:0px;">Despite the many advantages of online shopping there are also problems which may occur with this type of shopping. These problems such as ordering the wrong item, receiving the wrong item and the need to return an item can often be significant enough to make a potential online shopper reconsider the decision to purchase an item online. Although these problems are some of the most common which occur in online shopping they do not necessarily happen frequently. However, when these problems do occur they can cause a great deal of stress and frustration for the online shopper. This article will discuss some of these common problems in an attempt to help the reader make a wise decision about whether or not to purchase an item online. <br /><br />Ordering the Wrong Item<br /><br />When shopping in traditional stores it is quite difficult to accidentally purchase the wrong item because the sales process typically involves the consumer physically carrying the item up to the sales counter to make the purchase. However, in online shopping where the consumer never physically handles the item before the purchase is complete and the item delivered it is certainly possible to purchase the wrong item. This can occur when the shopper uses the website to make the purchase and clicks on the wrong item or when the consumer contacts customer service to make the purchase and provides the wrong product number. Even if the consumer clicks on the correct product and provides an accurate product number he may still make a mistake in the ordering process if there are options such as size or color associated with the item. This problem can be rather troubling because the consumer will be disappointed when the incorrect item is received. <br /><br />Receiving the Wrong Item<br /><br />Even when online shoppers do not make mistakes during the ordering process it is still possible for the consumer to receive the wrong item. This often occurs when the orders are filled by hand and a mistake is made in the warehouse. A warehouse maker may ship the wrong item completely or may ship the correct item in the wrong size or color. Again the consumer will likely not know a mistake was made until the order arrives. The online retailer will likely take responsibility for returning the incorrect item and will ship the correct item as soon as possible. However, this may not completely correct the problem in all cases. For example a consumer who purchased an item for a specific event may not receive the replacement item in time for the event. <br /><br />The Need to Return an Item<br /><br />In situations where the online shopper orders the wrong item as well as situations where the online retailer mistakenly ships the wrong item there may be a need to make returns. Although this may not seem to be a huge problem it can be particularly troubling for some consumers. In particular online shoppers who opt to do their shopping online specifically because they work odd hours may have a great deal of difficulty making returns. This is because the process of shipping the item back to the online retailer will generally involve taking the item to a post office. Depending on the hours in which the consumer works, it may be difficult to get to a post office during regular business hours and may require the shopper to take time off from work to make the return.<br /><br />If you are you looking for more information in regards to <a href="http://www.instock.mondebinaire.com/">in stock</a> take a look at our web-page.