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1Time to maturity: Many studies of sorghum breeding for ASAL area is done to achieve short time to maturity and this trait is simply inherited. This drought escape trait.
2.Extent of the rooting system: greater root density up to 100cm depth is considered advantageous to extract more water.
3.Growth rate of panicle: This is manifested at harvest in the greater seed number head in the more stress tolerant varieties. Panicle represents only a minor component of overall growth during growth stage II comparing with expanding leaves and root growth during growth stage III. However the developing grains is a major sink for photosynthates and more so under water stress condition
4.Rapidity of senescence of the lower leaves. This reduces plant transpiratory surface
5.Leaf angle: This trait influences photosynthetic or transpiration rates and hence water use efficiency. That is those with bigger angle will photosynthesis and transpires more rapidly than that with smaller angle. The leaf angle is likely to affect plant prior to development of a full leaf area index.
6.Susceptibility to leaf tissue desiccation: The factor underlying this characteristic is associated with osmotic potential of leaf tissue and the physical characteristics of cell wall.
Titany answered the question on August 16, 2021 at 08:46
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