Perhaps to a small degree
Genetics are the primary factor determining the perceived effect, not the presence or absence of amber trichs.
Genetics (and growing conditions) determines how much THC is 'possible" in the trichs, the effect has to do with what stage the trichs are in and the ratios of THC to CBD.
4 STAGES OF TRICHOME DEVELOPMENT
Trichome formation and maturation change the potency and THC/CBD balance of a cannabis plant. There are four stages of trichome development to which growers must be privy in order to produce cannabis products used specifically in the medical marijuana industry as well as the recreational industry. During each stage, the trichomes change color, which is why a trichome chart is an essential point of reference for new growers. Throughout their development, trichomes appear clear, milky, amber, and mixed in color.
Because new flowers can grow on top of each other, flower clusters near a single plant can develop at different stages of trichome development. Choosing to harvest only the top of a plant can help growers get the most out of their harvest. Cannabis strains such as California Gold, Space Cookies, and Nebula are known for their brilliant trichome development.
CLEAR TRICHOMES
Clear trichomes are the first to appear on the cannabis plant during its transition from the vegetative state into the first week of the flowering process. Under magnification, the trichomes will appear either clear or opaque. During this stage, the plant is still forming THC and is not yet ready for harvest.
Harvesting buds too early in trichome development will produce a faint and potentially uncomfortable consumer experience. However, the appearance of clear trichomes throughout the lifecycle of a cannabis plant is a sign of healthy growth because cannabis plants are always forming new trichomes and producing more chemical compounds.
MILKY TRICHOMES
When a trichome begins to appear cloudy, the THC levels are beginning to reach their ideal potency and flavor. At this stage, the plant is not fully matured; buds will appear small and lack the rich aroma consumers expect. When cloudy trichomes are covering the plant, THC levels are much higher than CBD levels, which means the psychoactive effects of cannabis are most prevalent.
If harvested during this stage, many cultivars will produce a more uplifting experience. Trichomes remain milky for about two weeks during the lifecycle of a cannabis plant. Growers may choose to harvest the buds at this time if they plan to pair the strain with CBD oil.
AMBER TRICHOMES
Trichomes will begin turning amber in conjunction with milky trichomes. A plant that is covered primarily in amber trichomes will have higher levels of CBD, as much of the THC in the plant will have naturally converted to cannabinol (CBN). Growers can determine this stage by observing the lack of little white hairs on the bud.
During this stage, the hairs will appear a dark orange or brown color. This often reduces the psychoactive effects of cannabis consumption and creates a much more relaxing and sleep-inducing experience for the consumer. The medical marijuana industry often leans toward cannabis harvested at this stage because of its ability to manage pain and treat insomnia. Many Indica-dominant strains require growers to harvest the buds when at least 60 percent of the trichomes have turned amber.
MIXED TRICHOMES
For most cannabis harvests, growers look for a certain ratio of cloudy trichomes to amber trichomes. Many expert growers believe that the best time to harvest a plant is when the trichomes are 70 percent cloudy and 30 percent amber. Buds harvested with this ratio of trichome colors are frequently processed in the retail industry to create stimulating and cerebral effects for the recreational consumer.