Sulphur is important nutrient for optimum growth and productivity ofa)Pulseb)Cerealsc)Fibre cropsd)Oil cropsCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Pulse crops

Sulphur is constituent of certain amino acids. The amino acids form the protein by polymerisation. The pulses are rich in protein.

Answer

Sulphur is an important nutrient for optimum growth and productivity in Pulse crops. Sulphur is constituent of certain amino acids. The amino acids form the protein by polymerisation. The pulses are rich in protein

Answer

Sulphur is an essential nutrient for the optimum growth and productivity of pulse crops. Here's why:

1. Role of Sulphur in Plant Growth:

Sulphur is a macronutrient required by plants in relatively large quantities. It plays a crucial role in various physiological and metabolic processes, including:

- Protein synthesis: Sulphur is a key component of amino acids, which are the building blocks of proteins. It is essential for the synthesis of enzymes, hormones, and structural proteins in plants.

- Chlorophyll production: Sulphur is involved in the formation of chlorophyll, the pigment responsible for photosynthesis. It helps in the efficient utilization of light energy and enhances plant growth.

- Vitamin synthesis: Sulphur is necessary for the synthesis of vitamins like thiamine and biotin, which are essential for plant growth and development.

- Defense mechanisms: Sulphur contributes to the production of defense compounds, such as phytoalexins and glucosinolates, which help plants combat diseases and pests.

2. Sulphur Requirement of Pulse Crops:

Pulse crops, including various legumes like lentils, chickpeas, peas, and beans, have a relatively high sulphur requirement compared to other crops. This is because legumes have a unique ability to fix atmospheric nitrogen through a symbiotic relationship with nitrogen-fixing bacteria in their root nodules.

The process of nitrogen fixation is energy-intensive and requires an adequate supply of sulphur for the synthesis of proteins and enzymes involved in nitrogen fixation. Therefore, sulphur deficiency in pulse crops can significantly impact their nitrogen fixation capacity and overall growth.

3. Effects of Sulphur Deficiency:

In pulse crops, sulphur deficiency can lead to various detrimental effects, such as:

- Reduced nitrogen fixation: Insufficient sulphur availability can impair the activity of nitrogen-fixing enzymes, resulting in reduced nitrogen fixation. This can limit the availability of nitrogen for plant growth and decrease overall productivity.

- Stunted growth: Sulphur deficiency can cause stunted growth, reduced leaf size, and chlorosis (yellowing) of leaves. It can negatively impact the overall vigor and biomass accumulation of pulse crops.

- Poor seed yield and quality: Sulphur deficiency can lead to reduced seed yield and lower seed quality in terms of protein content. Pulse crops are valued for their high protein content, and sulphur deficiency can compromise their nutritional value.

- Increased susceptibility to diseases and pests: Sulphur-deficient plants may have weakened defense mechanisms, making them more susceptible to diseases and pests. This can further reduce productivity and crop quality.

Therefore, for the optimum growth and productivity of pulse crops, it is crucial to ensure an adequate supply of sulphur through proper soil management practices, including timely application of sulphur-containing fertilizers.

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