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 GroveStudies Production: 2A. Roles of leader in Agricultural Extension 1. They coordinate the efforts of the group to achieve its goals. 2. They establish proper social climate in the group 3. Leaders assists the group to organize themselves 4. The promote thee spared of messages of extension programme 5. They act as demonstrator for the innovations 6. They create inner and intra group coordination 7. They help in planning and execution of development programmme 8. They encourage other for action 9. They develop self confidence among members 10. They create favorable climate for introducing development programmes. 11. They act as model for members 12. They support and motivate others to make efforts to realize their needs. 2B. Nature of social change 1. Only such changes are designated as social change that affects the bulk of the community. 2. Social change is a universal process. It is founded in all societies and all stages of social evolution. 3. Social change does not always depe

  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 -1 (Part – 1 )  Fundamentals of plant biochemistry and biochemistry  Content :-  Introduction  Historical aspects of Biochemistry  Scope, impact and importance of Biochemistry in plant sciences  Properties of water , PH and Buffers  ---------------------- --------------------------------------------------- Biochemistry :-   The branch of science of which deals with the all study of all life process such as control and coordination within living organism is called Biochemistry.  Neuberg introduced the termed the Biochemistry in 1903.  This field include the biology as well as the chemistry to study the chemical structure of living organisms.  It mainly deals with study of structural and function of biomolecules such as Carbohydrates , Lipids , proteins, amino acids . hence it is also called molecular biology.  Importance of Biochemistry :-  The chemical process which particular diet transform into compounds.  The catalytic function of enzymes.  Utilizing the potential energy from