Skip to main content

Posts

Batrachospermum :Origin ,strucutre ,Thallus organisation and reproduction

                                              Batrachospermum Occurrence:-   (1) Batrachospermum is fresh water alga.    (2) It is found in clear, cool, and running streams.   (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green.   (4) The intensity of light changes the color of pigments.   (5) The thallus is attached to the substratum. Vegetative structure  (1) The thallus of an adult plant is soft, thick, filamentous.  (2) It is freely branched and gelatinous.   (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth        are developed on this axis.  (4) These branches are filamentous and dichotomously arranged.  (5) The main axis is corticated. It consists of a row of elongated cylindrical cells.   (6) It is differentiated into nodes and internodes.   (7) There are two types of branches that arise from the nodes:       Branches of limited growth        Branches of unlimited growth Batra

Stratergies of Enhancement in food Production

                  Stratergies for improvement in   food production Animal Breeding :- Mating and croos of animal to enhance its varity or phylogeny quality or yield . Animal Husbandary :- The agricultural apply of breeding   and raising eutherian mammal ,e.g. cow,pig,buffaloes,horses etc. Breeding :- Bee keeping production of honey,Dairy farm is that the management   of animal for milk and its production for human consumption. Fisheries :- An trade dedicated to rearing ,catching,processing of commerce of fish shellfish or alternative aquatic animals. Green Revolution :- Dramatic increase in food production in Nineteen Sixties as a results of caultivation of high yielding illness resistance varities of wheat rise and maize etc. developed through breeding techniques is reffered to as revolution . Mutual Breeding :- Obtaining of crop plants with fascinating characters by artificial or evoked mutation and mistreatment them a cloth in br

Morphology of Flowering Plants-Defination and Modification of Stem

                     Morphology of Flowering Plants Defination :- The main body or stalk of a plant or woody plant, generally rising higher than ground however sometimes subterranean. Stem Origin of Stem :- Origin of Stem The first stem plant tissue is organized throughout the event of the embryo.  The absolutely developed embryo usually consists of AN axis, the hypocotyl-root axis.  The axis bears at its higher finish, one or a lot of cotyledons and therefore the shoot anlage, whereas at its lower finish it bears the foundation anlage lined with a root-cap. The anatomical structure (embryonic root) is found at the lower finish of the hypocotyl and therefore the embryonic shoot is found higher than the insertion of the cotyledons.  The embryonic shoot consists of AN axis bearing un-extended internodes and one or a lot of leaf primordia.  This shoot (first bud) is usually called down feather and its stem half is termed epicotyl.

Modification of Flowering plant- Root and its Modification

                           Morphology of Flowering plant  Root :- A -Tap root      B - adventatious Root  Mainly in exogen plants ,the direct elongation of the bodily structure results in the formation of primary root that grows within the soil . It bears lateral roots of many orders that square measure remarked as secondary, tertiary, etc. roots.  the first roots and its branches represent the faucet scheme, as seen within the mustard plant. In monocotyledonous plants, the first root is brief lived and is replaced by an outsized range of roots.  These roots originate from the bottom of the stem and represent the fibrous scheme, as seen within the wheat plant . Types of root :- A –Tap root B- adventatious root Root :- In some plants, like grass, Monstera and therefore the Indian banyan, roots arise from elements of the plant apart from the bodily structure and square measure known as accidental roots . The main functions of the foundat

Morphology of Flowering Plants -Leaf Modification & Type

                        Morphology of flowering plants Defination of Leaf :- A planate Structure of the next plants  typically inexperienced and blade like ,that is attach to stem directly or by stalk.Leaf  are the most organ for chemical change and Transpiration. Leaf Veinlets Functions of The Leaf :- Leaves ar of predominate importance as  they are primarily responsible for the  manufacture of food.  Photosynthesis, because the method is termed, is the main perform of the leaf.Owing  to the presence of pigment, the green  colouring pigment, the leaves will  manu¬facture advanced organic food  matters (like sugar and starch), out  of water and greenhouse emission gas  absorbed from the soil and  air severally, with the help of daylight. Function of leaf :- Leaves conjointly stick with it respira¬tion, an  energy emotional method, which involves intake of atomic number 8 and outgo  of almost equal volume of carbon dioxide. All living organs, of course,  have t