What is the tree girdling, Biology

Assignment Help:

What is the tree girdling? What happens to the plant when that girdle is removed from the stem (below the branches)?

Tree girdling or Malpighi's girdling is the removal from a stem of a complete external girdle containing phloem (that is more external) but preserving xylem (that is more internal).

Although a girdle like that is removed below the branches the plant dies because organic food (sugar) is disallowed to pass to the region below the girdle and thus roots die from the lack of nutrients. Ever since roots die the plant does not get water and mineral salts and dies too.

 


Related Discussions:- What is the tree girdling

Pulse wave doppler, Pulse wave  transducer has one Doppler  crystal. This c...

Pulse wave  transducer has one Doppler  crystal. This crystal emits a short burst of ultrasound at a certain frequency [PULSE REPETITION FREQUENCY (PRF)].  The ultrasqund is reflec

Mechanism of blood coagulation, GENERA L MECHANISM OF BLOOD COAGULATION - ...

GENERA L MECHANISM OF BLOOD COAGULATION - All researchers agree that blood clotting is a cascade mechanism and involves three essential steps - (a) Formation of prothrombin ac

What is the importance of pre procedural rinse, Q. What is the importance o...

Q. What is the importance of pre procedural rinse? Patients' use of an anti-microbial mouthwash of 0.12% chlorhexidine gluconate solution for 30 seconds prior to intra-oral pro

Define methods used in combination with pasteurization, Define methods used...

Define methods used in combination with pasteurization? Typical other methods used in combination with pasteurization include: 1.  Refrigeration as in the case of   milk

Name the skin receptors in humans, Which of the below are skin receptors...

Which of the below are skin receptors in humans which are sensitive to heat? Are they: a) End organs of Krause b) Meissner's corpuscles c) End organs of Ruffini d)

Define hexokinase, Hexokinase, that catalyzes the first irreversible step o...

Hexokinase, that catalyzes the first irreversible step of glycolysis, is inhibited by glucose 6-phosphate.   Thus  when  PFK  is  inhibited and  fructose  6-phosphate builds  up an

Relate osseointegration with biointegration, Osseointegration Vs. Biointegr...

Osseointegration Vs. Biointegration In 1985, dePutter observed that there are two ways of implant anchorage or retention: mechanical and bioactive. Mechanical retention refers

Describe the morphological characteristics, Q. Describe the Morphological C...

Q. Describe the Morphological Characteristics? One of the first steps in the identification of bacteria in food is microscopic examination to ascertain the shape, size, aggreg

Describe the several steps by allosteric inhibition, Which of the following...

Which of the following are features of allosteric inhibition? During the infection, there are many different environments that P. multocida will encounter. In order to cause an inf

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd