1 / 25

The Physiology of the Vine

The Physiology of the Vine. Chapter 6. Transpiration. Loss of water by the plant Water required for a normal growing season is 15 to 50 acre-inches. External conditions that affect the rate of water loss are light intensity, temp. humidity, and wind. Water intake by the roots. Root hair

sugar
Télécharger la présentation

The Physiology of the Vine

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Physiology of the Vine Chapter 6

  2. Transpiration • Loss of water by the plant • Water required for a normal growing season is 15 to 50 acre-inches. • External conditions that affect the rate of water loss are light intensity, temp. humidity, and wind.

  3. Water intake by the roots • Root hair • Cohesive forces • Osmotic pressure • Losses due to late pruning, 5 to 7 gallons per vine.

  4. Absorption of mineral nutrients • Ionic solution through the root hair.

  5. Properties of Photosynthesis CO2 H20 + H20 CH0 + O2

  6. Factors Affecting the Rate • Light Quality • Light Intensity • Light duration • Carbon Dioxide • Temperature • Water Availability • Plant Development

  7. Photophosphorylation 12 H2O 6O2 + 24 H+ + 24e- Overall Light reaction equation

  8. Photophosphorylation 12 NADP+ +12 H2O 12 NADPH + 12 H+ + 12 O Oxidized form Reduced form NICOTINAMIDE ADENINE DI NUCLEOTIDE PHOSPHATE

  9. Photosynthesis Overview of Photosynthesis and Respiration

  10. Photophosphorylation ADP + P ATP Adenosine Triphosphate

  11. Photophosphorylation 12 NADP + 24 e- + 12 H+ 12ADP + 12P 12ATP + 12 NADPH Overall energy equation

  12. Review 24e- 12 H2O 6O2 + 24 H+ + 1.____ 12 2._____ +12 H2O 12 NADPH + 12 H+ + 12 O NADP+ ADP + P 3. ___ ATP 12 NADP + 24 e- + 12 H+ 12ADP + 12P 4. _______________ 12ATP + 12 NADPH

  13. Photosynthesis Light-Dependent and Light Independent Reactions

  14. Respiration • The opposite of photosynthesis. • The breaking down of sugar to release energy. • Used for plant growth.

  15. Translocation • The movement of materials in the vine. • Conductive tissue • Xylem • Phloem

  16. Growth • Cell division • Cell Elongation • Cell Maturation • Older tissue – Cambium divides.

  17. Annual Cycle of the Vine • Breaks dormancy when the daily temp is about 500F mean. • After the first month of bud break is the most active growing period of the vine. • Shoots continue to grow all year until abscission occurs. • Bloom occurs when the temp reaches 680F daily mean.

  18. Annual Cycle of the Vine • The accumulation of soluble solids occur in the berries. (Sugar) • Carbs. & Starches are transferred to the roots prior to dormancy.

More Related