TAMU SCSC 302 Exam 3 Questions With Answers

TAMU SCSC 302 Exam 3 Questions With Answers Which of the following is not a major component of an in-ground turfgrass irrigation system: - ANSWER- Weather station Which broadleaf weed is also known as 'pigweed'? - ANSWER- Purslane Match each of the following turfgrasses with their geographic origins: - ANSWERBermudagrass - South Africa Zoysiagrass - Asia Bahiagrass - South America Kikuyugrass - East Africa Tall Fescue - Europe Perennial Ryegrass - Europe, Asia, and North Africa Centipedegrass - China Carpetgrass - North America Which is NOT a warm season weed? - ANSWER- Rescuegrass What broadleaf summer perennial has noticeably heart-shaped leaves? - ANSWEROxalis Select ALL of the following that are 'annual' weeds: - ANSWER- Aster Goosegrass Crabgrass Chickweed Henbit Rescuegrass Sandbur Spurge Annual bluegrass Purslane One advantage to lowering mowing height is that it produces stronger plants with more extensive root systems. T/F. - ANSWER- False Cool season turf grasses are considered C3 ? True or False - ANSWER- True Identify the weed depicted in the picture below: (small white flower yellow center) - ANSWER- Aster The cost of slow release fertilizers is generally cheaper than soluble fertilizer types. True/False. - ANSWER- False Performance traits found in 'FAST' growing turfgrasses include: - ANSWER- Increased mowing requirements. Increased thatch problems. Decreased turf production costs. Hybrid bermudagrass is available via inexpensive seed. T or F? - ANSWER- False Before sandbur flowers, it can be mistaken for ___________? - ANSWERBermudagrass Identify the weed species depicted in the picture below: (green plant with small white petals) - ANSWER- chickweed Green Kyllinga is usually found in dry areas? - ANSWER- False Type of mower with the highest safety. ______________ - ANSWER- Flail Match each 'category' of important traits with the responses seen in turfgrasses: - ANSWER- growth characteristic - bunch, intermediate, sod-forming uniformity - mowing cut cleanliness density - tiller number vs. internode length color - diseases/ nutrient status wear tolerance - tensile strength biotic stress tolerance - pests abiotic stress tolerance - drought seed/ sod production - commercial viability Which type of sterilization do you cover the soil with clear plastic for 6 weeks? - ANSWER- Solarization Sand, silt, loam, & clay are the primary classes of soil particles. True or False. - ANSWER- False Amendments are macronutrients. True or False? - ANSWER- False Which of the following weeds can be an indicator of low soil N: - ANSWER- Clover Which weed has square stems, small, pink flowers, grows up to 16 inches in height and is in the 'Mint' family? - ANSWER- Henbit Aerification increases the movement of all except which of the following into the soil? - ANSWER- Light Select ALL of the following that are 'native' turfgrass species: - ANSWER- Inland Saltgrass Blue Grama Buffalograss Curly Mesquite Identify the weed species depicted in the picture below: (it literally is a clover) - ANSWER- Clover All weeds are inedible. T/F? - ANSWER- False Transpiration occurs when rootzones are saturated or when precipitation rate exceeds the infiltration rate of the rootzone. - ANSWER- False Which is not true about broadleaf weeds? - ANSWER- Usually don't have a taproot What is the most serious weed worldwide? - ANSWER- nutsedge Close mowing aids transition? T/F - ANSWER- True Which of the following is not a common class of weeds? - ANSWER- Legumes A sprig is a stem with at least one node or crown and any attached roots or leaves. - ANSWER- True Identify the weed species depicted in the picture below: (this one looks like a clover but has a flower) - ANSWER- Oxalis Which fumigation method is the most effective but also the most harmful to the environment? - ANSWER- Methyl Bromide Endophytes - ANSWER- Endophytes