Question
Which major weed species is becoming increasingly
resistant to Isoproturon in wheat fields of North India, posing a challenge for effective weed control?Solution
Phalaris minor (canary grass) is a problematic weed in wheat fields. Continuous use of isoproturon has led to resistance development, requiring integrated weed management and alternative herbicides.
The curved surface area of a cylinder is 462 cm² and its base area is 346.5 cm². What is the volume (in cm³) of the cylinder? (Use π =...
If (x 2 = 6x – 9), then find the value of [x³ + (x⁴/9)][5 - x³]
If a + `1/b` = 1 and b + `1/c` =1 , then the value of c + `1/a` is
If p² + q² + r² = 240 and pq – qr – rp = 64, then determine the value of (p + q – r) ².
If x + y + z = 4, xyz = 6 & x2 + y2 + z2 = 8 then find the value of x3 + y3 + z3.
- 8p 3 - 27q 3 - 36p 2 q + 54pq 2 is equivalent to:
- If (x - y) = 1, then find the value of (x³ - y³ - 3xy).
If n = 6 + √13, then find the value of (n + 1/n)².
If x + y + z = 6, and x3 + y3 + z3 = 36, xyz = 6 then find (xy +yz + zx)?
