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LATEST NEWS UPDATES | Rabi crop fine for now, a few worries over wheat and early end to winter -Harish Damodaran

Rabi crop fine for now, a few worries over wheat and early end to winter -Harish Damodaran

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published Published on Jan 10, 2016   modified Modified on Jan 10, 2016
-The Indian Express

Field reports suggest that the mustard crop — currently about 70-90 days old and at the reproductive (flowering and pod development) stage in most areas — is in good condition.

Dry weather combined with unwinter-like temperatures — roughly 5 degrees Celsius above normal levels for this time — may not pose immediate worries to the rabi season crops in the fields now. But the real concern is whether these conditions would persist, and the winter would end before it has even set in fully.

Field reports suggest that the mustard crop — currently about 70-90 days old and at the reproductive (flowering and pod development) stage in most areas — is in good condition.

“The positive thing is that there have been no white rust or stem rot attacks. These fungal diseases normally spread when you have low temperatures along with high humidity, especially from late-December to mid-January. What we are having, instead, is dry weather and above-average temperatures,” says Dhiraj Singh, who heads the Directorate of Rapeseed-Mustard Research at Bharatpur in Rajasthan.

But such optimism of a bumper crop does not extend to wheat. Unlike mustard, which is harvested by February-March, the wheat in much of North India would start flowering only after mid-February. The real grain-filling or accumulation of starch matter in the kernels happens from around mid-March. If day temperatures spike to 35 degrees Celsius or more by then, there would be premature drying and ripening of the grain. The usual thumb rule is that every extra day on the field during the grain-filling stage confers an additional wheat yield of 45-50 kg per hectare. Any sudden rise in the mercury, forcing the crop to mature 7-10 days in advance, can translate into yield loss of roughly half a tonne per hectare.

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The Indian Express, 8 January, 2016, http://indianexpress.com/article/explained/rabi-crop-fine-for-now-a-few-worries-over-wheat-and-early-end-to-winter/


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