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CORN

 
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DONOR МV

 

 

Originator Plant Production Institute nd. a V.Ya. Yuryev of NAAS and LLC APC Mais.


Hybrid type - triple modified.


Entered in the Plant Variety Register of Ukraine in 2008. Zones recommended for growing: forest-steppe, steppe.


Approbation characteristics. Variety - tooth-like (ssp. indentata). The plant height is 250-270 cm. The height of earcorn attachment is 90-95 cm. The number of leaves is 16-17. The earcorn length is 23-24 cm. The number of seed rows per ear is 16-18. The grain yield is 84-86%. The ear shank is red. Mass of 1,000 seeds is 290-300 g.


Biological features. Ripeness group: mid-ripening, FAO – 310. The duration of «seedling-ripening» period is 112-114 days. The initial growth is fast. Cold tolerance is high. Drought resistance is high. Lodging resistance is high. Resistance to ear necking is high. Resistance to loose smut is high. Resistance to boil smut is high. Resistance to stem rots is high. Resistance to corn borer is high.


Economic features. The potential grain yield capacity is 14.5-16.5 t/ha. The recommended density by the harvest term is 58,000-60,000 plants per hectare in forest-steppe and 60,000-65,000 plants per hectare in woodlands. The harvest moisture is 24-25%. Solids content in green mass is 34-35%. Protein content in grain is 9.8-10.2%. Starch content is 74.6%.
Hybrid seed breeding is based on sterility of M-type by full recovery pattern, without cutting off panicles. Female sterility is 99-100%. The optimal planting system of parent lines in hybridization areas is 12:4; 8:4. Seed-breeding plots require high agricultural technology, struggle with weeds and optimal feeding conditions. The seed yield capacity under favourable conditions is 1.8-2.0 t/ha.
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