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  GroveStudies Production Agronomy :-  Contents ;- Weeds classification  Loss and gain of weeds  Weed Contents  Water use efficiency Herbicides  Advantages and disadvantage  Growth and development Irrigation And different methods  Drip and Sprinkler ----------------------------------------------- What is Weed?  Weeds may be defined as the unwanted and undesirable plant which interfere with the utilisation of land and water resources and adversely affect human welfare the term Veda was firstly used by Jethro Tull. According to their economic importance of weeds :-  Relative weeds :-  unwanted plant which has some economic importance but called weeds because these are grown out of their places.  Example:- cynodon dactylon. Absolute weeds :-  unwanted plant which has no economic value and growing out of their proper place.   Ex :- euphorbia hirta. Losses caused by weeds :-  Weeds compete with the crop for their growth factors :-  The greatest loss caused by the wheat resulted from their

 Unit - 2     Click  Protein and Hemoglobin  to see notes. in form of Pdf.    Join Our Telegram Channel -  Grovestudies WHAT IS PROTEIN ?  Proteins are very large molecules composed of basic units is called Amino acids.  In addition, to containing carbon, hydrogen and oxygen amino acids contains nitrogen.  Proteins are highly complex molecules that are actively involved in the most basic and important aspects of life.  These include metabolism, movement , defense, cellular communication, and molecular recognition.  CLASSIFCATION OF PROTEINS  On the basis of composition proteins are classified as simple or conjugated.  Simple proteins  sserum albumin , contains only amino acid.  In contrast, conjugated proteins consists of a simple proteins combined with a non protein component. This non protein part is called Prosthetic group.  Conjugated proteins without prosthetic group is called apoprotein. Derived Proteins – these are proteins derived by partial complete hydrolysis from the simple

Click -   Unit 2 amino acid  to see the ppt of Notes   Join  Grovestudies  Channel for more .... Amino Acid  Amino acid are molecules that combines to form proteins. Amino acids and proteins are building blocks of life.  Amino acid contains the basic amino acids (-NH2), carboxyl group (-cooH) , hydrogen atom and r group (distinctive side chain)all bonded to a carbon atom, namely the Alpha carbon.  All amino acids , except proline, have the same general structure.  More than 300 amino acids are present in the cell, however, only 22 amino acids participates in the protein synthesis ribosomically.  GENERAL PROPERTIES OF AMINO ACIDS:-  They have a very high melting and boiling points.  Amino acids are white crystalline solid substances.  In tastes, few amino acids are sweet , tasteless and bitter.  Most of the amino acids are soluble in water are insoluble in organic solvents.  BASED ON NUTRITIONAL REQUIREMENTS ;- Essential Amino acids –  amino acid that cannot be synthesized by the human