The paper should deal with physiology of modern corn and sorghum cultivars. How it differs from physiology of traditional corn and sorghum? I am in need of few papers related to the above mentioned aspect.
Especially for modern sorghum the varieties are either 3 or 4 dwarf varieties with genes to eliminate photoperiod sensitivity. Look for information under the Sorghum Conversion program which back crosses exotic germplasm lines to have the dwarfing and photoinsensitivity genes. Dwarf can be fertilized more heavily and do not lodge as much. The maturity genes promote an early crop under all planting seasons. Dwarf varieties lack the normal giberellin production which fosters stem elongation. Google Sorghum Conversion Program on Google Scholar you will get a lot of hits.
For modern maize look for the information on Iowa Stiff Stalk Synthetic this elite germplasm is noted to have tolerance to high populations and upright leaf morphology. The early production of maize has greatly expanded the Northern areas for maize production. For both sorghum and maize the male and female lines are separated and tested for superior hybrid reactions. The modern sorghum and maize varieties need to have high yield and the ability to resist the common diseases and pests. Especially under the concerns on global climate change the role of heat and drought tolerance is being stressed both in traditional and genetically modified approaches.
@ Rahul Raman,
How do you define 'modern' corn and 'traditional' corn? Did you mean ancient corn, such as Teosinte?
@Yuan-Yeu Yau
No. By modern I meant hybrids and all other genetically improved varieties (or a result of breeding) which came into existence 10-15 years (or less) back. By traditional I mean Landraces/indigenous variety that has historical roots.
- Badges
- Science topic
- Similar topics
- Biological Science
- Plant Sciences