Osmotic Adjustment in Chickpea in Relation to Seed Yield and Yield Parameters

By Moinuddin, R. Khanna-Chopra. Crop science, 2004

90 citations recorded by the source corpus.

To ascertain the role of osmotic adjustment (OA) in drought tolerance of chickpea (Cicer anetinum L.), eight cultivars differing in OA capacity were field grown under a line source sprinkler irrigation system. This imposed a soil moisture gradient on either side of the line source. The cultivars were divided into high and low OA groups and crop performance was assessed group-wise at three growth stages and at the time of harvest. A two-way increase in water stress was observed, along the soil moisture gradient and across the growth stages. As a result, water potential, osmotic potential, and relative water content decreased progressively with increasing soil moisture stress and age of the crop, regardless of OA groups. As compared with low OA cultivars, high OA cultivars generally showed an improved plant water status. High OA cultivars proved significantly superior to low OA ones in seed yield and most of its parameters. The yield benefit was 26 and 48% at moderate and severe moisture stress levels of the line source. This coincided with osmotic adjustment ranging from 0.28 to 0.48 MPa and from 0.37 to 0.71 MPa, respectively, at various phases of reproductive growth.

Subfields: Agronomy and Crop Science, Plant Science

View Paper: https://www.semanticscholar.org/paper/c49a3986a5c9fd881319c5d49273ffe19af44675

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Agronomy and Crop Science

1. P. Gaur
2. L. Krishnamurthy
3. J. Kashiwagi
4. Kadambot H. M. Siddique
5. Vincent Vadez

In Plant Science

1. P. Gaur
2. L. Krishnamurthy
3. Kadambot H. M. Siddique
4. J. Kashiwagi
5. H. Clarke
6. Peter Winter
7. J. Kumar
8. T. Millán

Citations in the corpus

• Chickpea molecular breeding: New tools and concepts (2006, background): “However, the correlation of osmotic adjustment and yield under drought stress is not clear, since a positive association of osmotic adjustment with productivity (Morgan et al., 1991; Moinuddin & Khanna-Chopra, 2004) as well as no influence has been reported (Leport et al., 1999).”
• Improving Drought-Avoidance Root Traits in Chickpea (Cicer arietinum L.) -Current Status of Research at ICRISAT (2008, result): “Some studies have shown an association between OA and seed yield under water stress conditions (Morgan et al., 1991; Moinuddin and Khanna-Chopra, 2004), while some studies found inconsistent or no relationship (Singh et al.”