With reference to the current trends in the cultivation of sugarcane in India consider the following...........

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With reference to the current trends in the cultivation of sugarcane in India, consider the following statements

A substantial saving in seed material is made when ‘bud chip settlings are raised in a nursery and transplanted in the main field.
When direct planting of setts is done, the germination percentage is better with single-budded setts as compared to setts with many buds.
If bad weather conditions prevail when setts are directly planted, single-budded setts have better survival as compared to large setts.
Sugarcane can be cultivated using settlings prepared from tissue culture.

Select the correct statement.

1,2&4 only

2&3 only

1&4 only

3&4 only

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Explanation:

Only statements 1&4 are correct.

Conventional method of sugarcane planting requires 7 to 8 tonnes of seed cane per hectare and this is the main reason for slow rate of seed and varietal replacement. Sugarcane being a long duration crop and heavy biomass producer requires about 1500 to 2500 mm water.

Keeping in mind the likely to be faced situations in future, the ICAR-Sugarcane Breeding Institute (ICAR-SBI) has developed an integrated sugarcane cultivation model called Settling Transplanting Technology (STT). Components of the model are listed below:

High yielding and better quality varieties
Raising and transplanting of settlings derived from single bud setts/ bud chips
Sub-surface drip irrigation and fertigation
Wider row planting
Intercropping
Trash mulching
Multiple ratooning
Mechanization

Statement 1: Transplanting sugarcane single-bud/ bud-chip settlings can save seed cane requirement up to 80 per cent besides providing healthy plants and good field establishment. It is less expensive and labour saving in comparison with conventional sett planting.

Other options are spaced transplanting (STP) and polybag / pro-tray nursery.

In Statement 2nd and 3rd their reverse is true.

Statement 4: Yes, tissue culture or vegetative propagation (a subset of TC), can be used to germinate and grow these settlings which can be transplanted in the field later.

Hence option 3rd is correct.