Leaf Angle, Tassel Morphology, and the Performance of Maize Hybrids1

• DOI: 10.2135/cropsci1978.0011183x001800030037x
• Publication Date: 2010-07-29T20:44:04Z
• Authors: R. J. Lambert; R. R. Johnson
• Keywords: Tassel; Plant Density; Shading

The relative importance of leaf orientation, planting densities, patterns, and tassel shading on grain production certain maize ( Zea mays L.) genotypes was investigated. Three experiments were conducted over a 4‐year period to ascertain the effect angle yield percentage unproductive plants in several hybrids. A plant‐density experiment using normal, liguleless‐l, liguleless‐2 types at densities 60,000, 75,000, 90,000 plants/ha 50.8 cm row spacings 3‐year period. hybrids produced 6.7% 12.9% more 75,000 plants/ha, respectively, than normal type plant‐spacing 1,290 2 645 /plant same three grown 2‐year 9.7% 49.7% (25.4 ✕ 25.4 cm) plant spacings, In both an increase associated with reduction is yields. An additional 1‐year determine if light penetration into canopy morphology could account for increased had only 89% as much incident liguleless‐ addition, removal but not that Based results this study, two characters under high narrow spacings. Liguleless‐I have almost total vertical orientation did respond manner these hybrids, although greater Responses liguleless‐1 similar those