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A lysimetric system to unravel root functionality Nov 2009 Roots The system measures plant water uptake at key stages and can help explain how yield component interacts (eg, with HI). Roots: An essential component of adaptation for dry land crops. Past progresses at ICRISAT Current shift in root research: Exploiting root functionality Large throughput screening, applicable for plant breeding in many crops Root scanning and analysis to assess root length density. Simple lifting and weighing to measure water uptake. Plastic beads prevent 90% soil evaporation. Cylinder size and spacing gives canopy structure. Conclusions Tubes of 1.2 m length 20 cm diameter, applicable to high density crops (groundnut, chickpea, wheat, rice and barley). Tubes of 2.0 m length 25 cm diameter, applicable to low density crops The system allows long term and robust assessment of Large diversity in water extraction available in the germplasm. The system allows measurement of water uptake, and

A lysimetric system to unravel root functionality

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A lysimetric system to unravel root functionality

Nov 2009

Roots

The system measures plant water uptake at key stages and can help explain how yield component interacts (eg, with HI).

Roots: An essential component of adaptation for dry land crops.

Past progresses at ICRISAT

Current shift in root research: Exploiting root functionality

Large throughput screening, applicable for plant breeding in many crops

Root scanning and analysis to assess root length density.

Simple lifting and weighing to measure water uptake.Plastic beads prevent 90% soil evaporation.Cylinder size and spacing gives canopy structure.

Conclusions

Tubes of 1.2 m length 20 cm diameter, applicable to high density crops (groundnut, chickpea, wheat, rice and barley).

Tubes of 2.0 m length 25 cm diameter, applicable to low density crops

The system allows long term and robust assessment of

Large diversity in water extraction available in the germplasm.

The system allows measurement of water uptake, and