Author: Richard Gilbert Batty
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 234
Book Description
Mass Selection for Plant Efficiency in Maize
Author: Richard Gilbert Batty
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 234
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 234
Book Description
Mass Selection for Plant Efficiency in Two Composite Varieties of Maize
Author: Joachim Friedrich Wilhelm von Bülow
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
Book Description
Evaluation of Mass Selection for Yield in a Variety of Maize (Zea Mays L.)
Author: Álvaro Eleutério Da Silva
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
Book Description
If the production of hybrids is considered as the future of maize breeding, the primary emphasis in an improvement program will be directed toward the most rapid and efficient means of effecting improvement in the population available to the breeder, and for the development of efficient methods for obtaining inbred lines and identification of superior hybrids from the improved breeding populations, Most maize varieties have shown considerable additive genetic variance to be present for grain yield, suggesting that intrapopulation selection would result in measurable improvement of these populations. The objective of this study was to evaluate 14 cycles of mass selection for yield improvement in an open-pollinated variety of maize, Krug, and to describe thecorrelated eresponses with other plant and ear traits. The evaluation was conducted at five Iowa locations (Kanawha, Ames Agronomy Research Center. Ames Hinds Farm. Ankeny, and Martinsburg), but because of a severe drought stress at the Ames Agronomy Research Center in 1977, this location was considered too poor to be harvested. The results from the combined analyses of variance over tje four locations showed significant differences among entries for all traits but number of plants per hectare; however, most of the differences were attributed to the check varieties. The average yield for the original and successive cycles of mass selection were not consistent for the different groups of entries. Mass selection was not effective for improving the yield (...).
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
Book Description
If the production of hybrids is considered as the future of maize breeding, the primary emphasis in an improvement program will be directed toward the most rapid and efficient means of effecting improvement in the population available to the breeder, and for the development of efficient methods for obtaining inbred lines and identification of superior hybrids from the improved breeding populations, Most maize varieties have shown considerable additive genetic variance to be present for grain yield, suggesting that intrapopulation selection would result in measurable improvement of these populations. The objective of this study was to evaluate 14 cycles of mass selection for yield improvement in an open-pollinated variety of maize, Krug, and to describe thecorrelated eresponses with other plant and ear traits. The evaluation was conducted at five Iowa locations (Kanawha, Ames Agronomy Research Center. Ames Hinds Farm. Ankeny, and Martinsburg), but because of a severe drought stress at the Ames Agronomy Research Center in 1977, this location was considered too poor to be harvested. The results from the combined analyses of variance over tje four locations showed significant differences among entries for all traits but number of plants per hectare; however, most of the differences were attributed to the check varieties. The average yield for the original and successive cycles of mass selection were not consistent for the different groups of entries. Mass selection was not effective for improving the yield (...).
Selection Methods in Plant Breeding
Author: Izak Bos
Publisher: Springer Science & Business Media
ISBN: 940158432X
Category : Science
Languages : en
Pages : 356
Book Description
Our requirement for plant breeders to be successful has never been greater. However one views the forecasted numbers for future population growth we will need, in the immediate future, to be feeding, clothing and housing many more people than we do, inadequately, at present. Plant breeding represents the most valuable strategy in increasing our productivity in a way that is sustainable and environmentally sensitive. Plant breeding can rightly be considered as one of the oldest multidisciplin ary subjects that is known to humans. It was practised by people who first started to carry out a settled form of agriculture. The art, as it must have been at that stage, was applied without any formal underlying framework, but achieved dramatic results, as witnessed by the forms of cultivated plants we have today. We are now learning how to apply successfully the results of yet imperfect scientific knowledge. This knowledge is, however, rapidly develop ing, particularly in areas of tissue culture, biotechnology and molecular biology. Plant breeding's inherent multifaceted nature means that alongside obvious subject areas like genetics we also need to consider areas such as: statistics, physiology, plant pathology, entomology, biochemistry, weed science, quality, seed characteristics, reproductive biology, trial design, se lection and computing.
Publisher: Springer Science & Business Media
ISBN: 940158432X
Category : Science
Languages : en
Pages : 356
Book Description
Our requirement for plant breeders to be successful has never been greater. However one views the forecasted numbers for future population growth we will need, in the immediate future, to be feeding, clothing and housing many more people than we do, inadequately, at present. Plant breeding represents the most valuable strategy in increasing our productivity in a way that is sustainable and environmentally sensitive. Plant breeding can rightly be considered as one of the oldest multidisciplin ary subjects that is known to humans. It was practised by people who first started to carry out a settled form of agriculture. The art, as it must have been at that stage, was applied without any formal underlying framework, but achieved dramatic results, as witnessed by the forms of cultivated plants we have today. We are now learning how to apply successfully the results of yet imperfect scientific knowledge. This knowledge is, however, rapidly develop ing, particularly in areas of tissue culture, biotechnology and molecular biology. Plant breeding's inherent multifaceted nature means that alongside obvious subject areas like genetics we also need to consider areas such as: statistics, physiology, plant pathology, entomology, biochemistry, weed science, quality, seed characteristics, reproductive biology, trial design, se lection and computing.
The Effect of Stratified Mass Selection for the Development of an Early Maturity, High Yielding Maize Population /
Author: Halima Elmi Awale
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 264
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 264
Book Description
Twenty Cycles of Bi-parental Mass Selection for Prolificacy in the Open Pollinated Maize Population ʻGolden Glow ̓
Author: Rene Adolfo Torrez Maita
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
Book Description
The Evaluation of Mass Selection for Prolificacy in 'Golden Glow' (open-pollinated) Variety of Maize
Author: Douglas John Jondle
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 126
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 126
Book Description
Mass Selection in Two Composite Varieties of Maize at Two Locations
Author: Mervyn Leroy Olson
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 196
Book Description
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 196
Book Description
Influence of Water Stress in Selection and Evaluation Environments on Response to Recurrent Selection in Maize
Author: Scott Selmer Johnson
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
Book Description
Effects of Long-term Selection on the Performance of a Semi-exotic Population of Maize
Author: David Bryan Rubino
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 216
Book Description