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- Shrestha, J.N.B.; Boylan, W.J.; Rempel, W.E.
- Canadian journal of animal science 2008 v.88 no.3 pp. 391-398
- weight; heterosis; fleece; wool production; synthetic populations; fecundity; animal performance; additive gene effects; ewes; crossbreds; genetic variation; yields; fiber quality; sheep breeds; mortality; birth weight; purebreds
- Zhu, Wei; Liu, Kui; Wang, Xue-De
- Euphytica 2008 v.164 no.1 pp. 283-291
- heterosis; plant growth; hybrids; lint cotton; Gossypium hirsutum; leaf area index; fiber quality; crop yield; agronomic traits; photosynthesis; plant morphology; leaves
- ... Leaf shape is an important factor affecting canopy structure, photosynthetic characteristics, and yield. Introducing okra leaf shape is considered an important strategy in cotton heterosis breeding. The objective of the study was to evaluate the heterosis in okra leaf cotton hybrid F₁s, which were developed by crossing two sterile near isolines and three restorer near isolines. A normal leaf check ...
- B. T. Campbell; D. T. Bowman; D. B. Weaver
- Crop science 2008 v.48 no.2 pp. 593-600
- cotton; topcrossing; cultivars; temporal variation; heterosis; Gossypium hirsutum; open pollination; additive gene effects; yield components; genetic variation; fiber quality; bolls; artificial selection
- ... Historically, reselection, pedigree, and mass-selection breeding methods have been used to develop open-pollinated cultivars of upland cotton (Gossypium hirsutum L.). As a result, modern cotton cultivars should have accumulated additive genetic effects with time, while also possessing fewer nonadditive gene effects than obsolete cultivars. A topcross test was conducted to compare the heterotic eff ...