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AGR4231 Forage Science & Range Management Lab > Lab 3 > Flashcards

Lab 3 Flashcards

1
Q

Form Bahiagrass how can it be identified?

A
  1. Short, fleshy rhizomes (purple)
  2. Tissue above soil surface is primarily leaf blade (also flowering stems at times)
  3. Sheath, purple at base
  4. Receme inflorescence, often two racemes
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2
Q

When it comes to Management of Bahiagrass why is it important and what are its advantages?

A
  1. Importance is that it coveres 2.5 million acres in florida
  2. Advantages are:
    * Seed propogated
    * Tolerant of many kinds of soil drainage & fertility
    * Tolerant of heavy grazing in general (Tifton 9 & UF-riata are less tolerant than argetine & pensacola)
    * Does not need fertilization
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3
Q

What is the disadvantage of Bahiagrass management wise?

A
  1. Low nutritive value & relatively low yielding
  2. Susceptible to mole crickets (insect pests)
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4
Q

In bermuda grass how are they identifiable?

A
  1. Strong stoloniferous
  2. Sparse, relativley long hairs at collar region
  3. Has rhizomes
  4. Receme inflorescence
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5
Q

What is the important of Bermudagrass and what are its advantages?

A
  1. Approximately 350,000 acres in Florida, mainly in north for hay production
  2. High yielding quantities
  3. Takes up large quantities of nutrients
  4. Higher in nutrition than bahiagrass
  5. Cold tolerant
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6
Q

What are the disadvantages of Bermudagrass in managment?

A
  1. Not as grazing tolerant as bahiagrass
  2. Requires good soil fertility
  3. Often attacked by loopers & fall army worm during summer/fall
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7
Q

When it comes to stargrass what make it recognizable ?

A
  1. Strong stoloniferous
  2. Sparse, relatively long hairs at collar region
  3. no rhizomes
  4. raceme inflorescence
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8
Q

What is Stargrass’s importance and advantages?

A
  1. Approximately 100,000 acres in florida
  2. Rapid establishment (vegetative)
  3. Higher yeilding & higher in nutritive value than bahiagrass
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9
Q

What are the disadvantages of Stargrass in managment?

A
  1. Not as grazing tolerant as bahiagrass
  2. Requires good soil fertility
  3. Not cold tolerant
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10
Q

How can Digitgrass be identified?

A
  1. Strongly stoloniferous
  2. prominents membraneous ligule
  3. No rhizomes
  4. Raceme inflorescence (digit-like)
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11
Q

What is the importance of Digitgrass and its advantages?

A
  1. Less than 500,000 acres and decreasing
  2. Very high in digestibility for a tropical grass
  3. Higher yielding than bahiagrass
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12
Q

What are the disadvantages in managemnt for Digitgrass?

A
  1. Not tolerant of typical grazial managment used in Florida
  2. Not cold tolerant ( grown south in orlando)
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13
Q

How can limpograss be identified?

A
  1. Strongly stoloniferous
  2. upright growth habit & thick stem (generally not suited for hay production)
  3. Reddish purple stem coloration
  4. No rhizomes
  5. Spike-like raceme inflorescence
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14
Q

What is the importance and advantage in managment of limpograsses?

A
  1. Approximately 400,000 acres in florida
  2. High yielding
  3. Adopted to wetsites
  4. High digestability, decrease slowly with maturity
  5. Cold tolerant, used primarily for winter grazing in south FL.
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15
Q

What is the disadvantage in limpograss in terms of management?

A
  1. Not as grazing tolerant as bahiagrass
  2. Low crude protein
  3. Hard to dry for hay (stemmy)
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16
Q

What are the key factors to identify Mulato?

A
  1. Very pubescent leaf blades & sheath
  2. Ligule is a fringe of hairs
  3. Upright bunch grasses
17
Q

When it comes to Mulato what is it used for?

A
  1. Currently used on a small scale, but is being evaluated exterior in research programs in FL.
  2. Cold tolerane for N. FL is limit survives for 2 years, longer jf winters are mid.
  3. Not adapted to very wet sites.
  4. Annual
  5. Very rapid growth, hard to manage
18
Q

When it comes to Sorghum how can one identify them?

A
  1. Annual
  2. Upright growth, bunch grass
  3. prominents mebraneous ligule glabrous (non hairy) sheath
  4. Panicole inflorescence
19
Q

What is the advantages and disadvantages for Sorghum?

A
  1. Hight yielding, excellent nutritive value, adaptable to wet lands than pearl mil
  2. Annual, very rapid growth, hard to manage,pressure acid toxicity folling stress

AGR4231 Forage Science & Range Management Lab (3 decks)

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