In North India, which technique is applied for high yield and desirable qualities such as thick stem and high sugar content in sugarcane?

"Plant breeding technique has helped sugar industry in North India" Explain.

Write the names of two semidwarf and high yielding rice varieties developed in India after 1966.

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content .Which of the following conclucions is most likely to be correct?The patient has inhalling polluted air containing high contents of :

The semidwarf variety of wheat which is high yielding and disease resistant. Name any one inter-specific hybrid mammal.

The existence of negatively charged particle in an atom was shown by J.J. Thomson as a result of the studies of the passage of electricity through gases at extremely low pressure known as discharge tube experiments. When a high voltage of the order of 10,000 volts or more was impressed across the electrodes, some sort of invisible rays moved from the negative electrode to the positive electrode these rays are called as cathode rays. Cathode rays travel in straight path in absence of electrical and magnetic field . Cathode rays consist of material part and charged particles? Cathode rays produce X-rays and light is emitted when they strike on ZnS screen. Cathode rays penetrate through thin sheets of aluminium and other metals . They affect the photogenic plate and passes heating effect when they strike on metal foil. The raito of charge to mass i.e charge/mass is same for all the cathode rays irrespective of the gas used in the tube. The existence of positively charged particle in an atom was shown be E. Goldstein. He repeated the same discharge tube experiments by using a perforated cathode. It was observed that when a high potential difference was applied between the electrodes, not only cathode rays were produced but also a new type of rays were produced simultaneoulsy from anode moving towards cathode and passes through the holes or canal of the cathode. These termed as canal rays or anode rays. These rays travel in straight lines and consists of positively charged particles. These rays have kinetic energy and produces heating effect also. The e/m ratio of these rays is smaller than that of electrons. Unlike cathode rays, their e/m value is dependent upon the nature of the gas taken in the tube. These rays produced flashes of light on ZnS screen and can pass throughs thin metal foils. They can produce physical and chemical changes and are capable to produce ionisation in gases. Which is not true with respect to cathode rays?

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion. High yielding variety of rice was produced in India by introduction of dwarfing genes called Dee-goo-woo-gen from Taiwan. Reason: High yielding variety of wheat was produced form dwarfing genes of Norin-10 from Japan in India.

Which of the following is a disease resistant, high-yielding breed of poultry developed in Karnataka ?