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how auxins act helping the lateral secondary growth of the stemthe auxins stimulate the formation of conductive vessels phloem and xylem promoting
how phytohormones help the development of parthenocarpic fruitsthe parthenocarpic fruits are those produced with no fecundation several plants
explain selective and differential culture mediathese are used for isolation of specific organisms these are designed to isolate a group of closely
explain differential media - culture mediait allows differentiation among morphologically and biochemically related group of organisms it contains
where in the plants is a large amount of iaa foundthe auxins are produced and found in large amount in the apical buds of the shoots and stem and in
what are the synthetic auxins and what are their usesthe synthetic auxins like naphthalenic acid naa and indolebutyric acid iba are substances
define enrichment media - culture mediait contains selective ingredients in the medium which shifts the growth in a mixed microbial population to a
what is the indolacetic acid iaaiaa or indolacetic acid indolyl-3-acetic acid is the major natural auxin made by plants it promotes plant growth and
explain the selective media - culture mediait is used to select specific groups of bacteria by favouring the growth of desired bacteria and
what is plant coleoptile why does the removal of the coleoptile extremity disallow plant growthcoleoptile is first one or more aerial structure of
what are the major natural plant hormones and what are their respective effectsthe major natural plant hormones and their respective functions are
what are the plant hormonesthe plant hormones also called as phytohormones are the substances that control the embryonic development and the growth
define general purpose and specialized culture mediageneral purpose media - these support the growth of many microorganisms example nutrient agar
what is the tree girdling what happens to the plant when that girdle is removed from the stem below the branchestree girdling or malpighis girdling
what are the forces that facilitate to make water to flow within the xylem from the roots to the leaveswater enters the roots because of the root
explain beef extract and yeast extractthese are aqueous extracts of lean beef and brewers yeast respectively beef extract provides amino acids
explain the peptones - complex mediapeptones are protein hydrolysates obtained by partial digestion of meat casein soya meal gelatin or other protein
explain complex or undefined mediahere the exact composition of the medium is not known it contains some complex components of plant and animal
what is the capillarity how this phenomenon chemically explained what is relevance of the capillarity for water transport in plantsthe capillarity is
explain chemically defined or synthetic media - culture mediasynthetic media are those media where detailed composition of the medium is known in
what is the root pressurethe root pressure is the pressure that forces water from the soil to be absorbed by xylem of the root it is because of the
what is the significance of lignin for the xylem formationlignin is vital because it is deposited on the cell wall of the xylem cells providing
explain the characteristics of agar- agarthere are many characteristics which make agar-agar an ideal solidifying agent these area it has high gel
are the phloem and the xylem made of living cellsthe cells of phloem are living cells and the cells that constitute the xylem ducts are dead cells
is the transportation of gases in tracheophytes made through the vascular tissuesthe carbon dioxide and the oxygen are not transported through the