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10.Biotechnology and its Application
normal
એકલ સંવર્ધનમાં ધાન્ય વનસ્પતિનો ઉછેર છે.
A
પેસ્ટ (ઉધઈ) તરફ ઉચ્ચ વૃત્તિવાળું
B
ઓછું ઉત્પાદન
C
અંત:જાતીય હરીફાઈમાંથી મુક્ત
D
નબળું મૂળતંત્રનું લક્ષણ
(AIPMT-2006)
Solution
(a) : Monoculture describes systems that have very low diversity. Monoculture is the destruction of a diverse ecosystem and replacement with a single species or crop. It depletes the soil, fruits and vegetables become more susceptible to pests and diseases than those grown in a diverse crop environment, thus requiring larger amount of chemical spray.
Standard 12
Biology