Nutrient deficiencies cause specific symptoms in plants, which can help identify the missing element.
White tip of maize leaves indicates the deficiency of
Asked in UPPSC Upper Mains 2010 · Topic: Plant Nutrition (Deficiency Symptoms of Specific Nutrients)
More Biology questions
- Buttoning in cauliflower is caused due to deficiency of which nutrient ?
- ‘Little leaf’ of cotton occurs due to the deficiency of which nutrient ?
- Petal burn in Chrysanthemum is due to deficiency of which nutrient ?
- Deficiency of which of the following elements causes yellowing and poor growth of the plants?
- Which one of the following nutrients is *not* available in fertilizers?
- With reference to 'earthworms', which of the following statements is/are correct? 1. Earthworms improves soil fertility and are known as farmer's friends. 2. Earthworm has two pair of hearts. Select the correct answer from the code given below : Code :
- This statement is correct. Earthworms play a crucial role in soil aeration, drainage, and nutrient cycling through their burrowing and waste-excreting activities, thus improving soil fertility. They are often referred to as "farmers' friends" due to their beneficial impact on agriculture. 2. This statement is incorrect. An earthworm has not two pairs, but rather four pairs of seminal vesicles, and it possesses five pairs of aortic arches, which are often colloquially referred to as "hearts". So, it has five "hearts" (aortic arches) rather than two pairs. 12. For the below Assertion and Reason, choose the correct alternative : Assertion (A) : Commonly, there are 20 recognized macro and micro inorganic elements in fish body. Reason (R) : Essential functions of inorganic elements are metabolism, bone formation, blood clotting, muscle function, impulse transmission, energy transformation, permeability of cellular membrane, genetic coding & control of reproduction and growth. - Question not attempted
- Assertion (A) : Mahua oil cake is used for manuring as well as an effective agent for eradication of predatory and weed fishes. Reason (R) : Mahua oil cake contains Rotenone (about 4-6%) which is an effective fish poison. Choose the correct answer : - Question not attempted