Variety traits
Maize stay-green
Zea mays L. subsp. mays (Maize Group)
Stay-green in maize refers to the 'stay-green' trait, characterized by the plant's ability to maintain functional activity and a green color in leaves and stems during the late stages of grain maturation.
In the reference 12 varieties crop Maize, where this is mentioned in the description.
The 'stay-green' trait is evaluated by measuring the rate of leaf senescence after flowering. This is achieved through visual scoring, counting the number of green leaves, calculating the relative visual stay-green (VSG) index, and using instrumental methods such as measuring chlorophyll levels with chlorophyll meters or analyzing vegetation indices based on remote sensing.
High stay-green values imply the preservation of photosynthetic activity until the grain reaches physiological maturity. This indicator directly affects crop productivity: prolonged photosynthesis contributes to greater dry matter accumulation, and for silage maize, it ensures the maintenance of the nutritional properties of the stover.
Stay-green hybrids often exhibit increased resistance to drought conditions, stalk rots, and lodging. When growing such varieties, particular attention must be paid to monitoring grain moisture at harvest, as the visual retention of a green stem does not always correlate with a decrease in the moisture content of the grain.
General information about the subject — on the page Remontancy.
Varieties of Maize mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
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