The black layer and grain maturity in corn
Daynard, TB; Duncan, W
| HERO ID | 10285542 |
|---|---|
| In Press | No |
| Year | 1969 |
| Title | The black layer and grain maturity in corn |
| Authors | Daynard, TB; Duncan, W |
| Journal | Crop Science |
| Volume | 9 |
| Issue | 4 |
| Page Numbers | 473-476 |
| Abstract | At maturity a black closing layer develops in the placental region of corn (Zea mays L.). The suitability of this black layer as an indicator of physiological maturity was studied in four hybrids of a range in maturity. As viewed by the naked eye the layer developed in 3 days or less, and its appearance coincided with the achievement of maximum kernel dry weight. An examination of a wide range of genotypes indicated that the black-layer formation is a common feature of commercial hybrids at maturity. An investigation of incompletely developed florets on partially barren ears or in the tip region of normal ears revealed black-layer formation in those showing limited endosperm development. No black-layer development was seen in nonfertilized or parthenocarpic florets. The cause and mechanisms of black-layer formation are unknown. However, it is speculated that such development is related to assimilate movement into the developing floret. |
| Doi | 10.2135/cropsci1969.0011183X000900040026x |
| Wosid | BCI:BCI197051004952 |
| Url | https://onlinelibrary.wiley.com/doi/abs/10.2135/cropsci1969.0011183X000900040026x |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |