Browsing by Subject "Heterosis"
Now showing items 1-16 of 16
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(Texas A&M University. Libraries, 1987)This study was designed to determine the effects of relocation and season on growth and reproductive parameters of Brahman and Hereford bulls. Hereford bulls from Montana (n = 15) and Nebraska (n = 15) and Brahman bulls ...
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(Texas A&M University. Libraries, 1989)Genetic parameters are associated with corn kernel characteristics were estimated using parent/offspring regressions, variance components analyses and the intra-class correlations of half-sibs. The experimental and mating ...
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(Texas A&M University, 2007-04-25)Sorghum [Sorghum bicolor (L.) Moench] production in Africa is widespread with low yields due to low inputs and the lack of sorghum hybrids. This situation has forced most of these farmers to grow maize hybrids since they ...
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(2017-12-08)India is the leading producer of cotton in the world producing 33.8 million bales (170 kg each) from 11.5 million ha. However, the lower yields per unit area stimulated the concept of high density planting system in India. ...
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(Texas A&M University. Libraries, 1987)Breeding, calving and weaning records of cows produced in a diallel of Angus, Brahman, Hereford, Holstein and Jersey were used to characterize these breed types for measures of female productivity. First-generation crossbred ...
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(Texas A&M University, 2005-02-17)Reproductive, maternal, and weight traits were analyzed for Angus (A), Brahman (B), and Hereford (H) straightbred cows; F1 and F2 BA and BH cows; and 3/8 B 5/8 A first (Bn) and second (Bn2) generation cows in Central ...
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(2012-02-14)Calf crop born, calf crop weaned, calf birth weight, calf weaning weight, and cow weight at weaning were evaluated from 1996 to 2009 in Brahman (B) and Hereford (H) straightbred and crossbred cows (n = 1,515). The objective ...
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(2013-07-08)Calving rate, weaning rate, birth weight, weaning weight, and ADG from 1997 to 2011 were investigated in Angus, Nellore, F_(1) Nellore-Angus, first generation 3/8 Nellore 5/8 Angus produced as following: (1/2 Nellore 1/2 ...
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(Texas A&M University. Libraries, 1990)A study of F1 hybrids between hard red winter and hard red spring wheats (Triticum aestivum L.) was conducted to estimate heterosis for grain yield, grain yield components, harvest index, height, and test weight; to note ...
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(Texas A&M University. Libraries, 1985)An evaluation of heterosis in F1 hybrids of soft red winter wheat (SRWW) and hard red winter wheat (HRWW) was conducted to estimate heterosis in grain yield, yield components, total dry weight, height, test weight, protein ...
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(Texas A&M University. Libraries, 1979)
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(Texas A&M University. Libraries, 1985)Measures of fertility, calf survival and calf size and growth were analyzed to characterize five breeds and to estimate some of the genetic effects of crossing these breeds. The five breeds were Angus (An), Brahman (Br), ...
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(2012-02-14)Heterosis, or hybrid vigor, refers to the superiority of F₁hybrid performance over the mean of its parents (mid-parent heterosis) theoretically, or the performance of better parents. It has been discovered in many species ...
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(2020-06-08)The genetic yield potential in grain sorghum [Sorghum bicolor (L.) Moench] hybrids has increased at a slower rate than other cereal crops. Advances in new technology provide opportunities for breeders to enhance selection ...
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(Texas A&M University, 2006-10-30)Maize is susceptible to biotic and abiotic stresses. The most important abiotic stresses in Africa are drought and low soil fertility. Aflatoxin contamination is a potential problem in areas facing drought and low soil ...
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(Texas A&M University. Libraries, 1990)This study had two distinct components: an agronomic/breeding segment and a sorghum malt component. The first consisted of field evaluation for traits related to agronomic performance, combining ability, and heterosis. It ...