Author: Gregorio Jacob Soto-Guevara
Publisher:
ISBN:
Category :
Languages : en
Pages : 270
Book Description
Using Divergent Recurrent Selection to Develop Maize (Zea Mays L.) Cultivars Suited to Intercrop with Dry Bean (Phaseolus Vulgaris L.)
Dissertation Abstracts International
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 780
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 780
Book Description
Agronomy News
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 832
Book Description
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 832
Book Description
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
American Doctoral Dissertations
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 724
Book Description
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 724
Book Description
Agrindex
Evaluation of Progress in Recurrent Selection for Specific Combining Ability in Two Open-pollinated Maize (Zea Mays L.) Varieties
Author: Ronald N. Walejko
Publisher:
ISBN:
Category :
Languages : en
Pages : 334
Book Description
To decide upon the most efficient breeding and testing procedures to improve maize populations, the plant breeder must have adequate knowledge of the type of gene action involved in yield heterosis. Two types of gene action have been postulated to account for yield heterosis in maize: dominance and overdominance. Recurrent selection of specific combining ability and for general combining ability have been proposed as methods to improve maize populations. Recurrent selection for specific combining ability uses a narow genetic base tester and originally was proposed on the assumption that overdominance is the main type of gene action responsible for yield heterosis. Conversely, selection for general combining ability uses a broad genetic base tester and assumes that dominant, favorable factors are concerned in yield heterosis. A procedure was proposed to compare the relative importance of dominance and overdominance in yield heterosis. This procedure involved recurrent relection for specific combining ability in two heterozygous source populations with a common inbred line tester. The purpose of this study was to evaluate progress in 5 cycles of recurrent slection for specific combining ability in two open-pollinated maize varieties and to determine the type of gene action involved in yield heterosis. The two source populations were the open-pollinated varieties, Kolkmeier and Lancaster, and the inbred line, Hy, was used as the common tester. After 5 cycles of recurrent selection, 6 population (C0 to C5) from (...).
Publisher:
ISBN:
Category :
Languages : en
Pages : 334
Book Description
To decide upon the most efficient breeding and testing procedures to improve maize populations, the plant breeder must have adequate knowledge of the type of gene action involved in yield heterosis. Two types of gene action have been postulated to account for yield heterosis in maize: dominance and overdominance. Recurrent selection of specific combining ability and for general combining ability have been proposed as methods to improve maize populations. Recurrent selection for specific combining ability uses a narow genetic base tester and originally was proposed on the assumption that overdominance is the main type of gene action responsible for yield heterosis. Conversely, selection for general combining ability uses a broad genetic base tester and assumes that dominant, favorable factors are concerned in yield heterosis. A procedure was proposed to compare the relative importance of dominance and overdominance in yield heterosis. This procedure involved recurrent relection for specific combining ability in two heterozygous source populations with a common inbred line tester. The purpose of this study was to evaluate progress in 5 cycles of recurrent slection for specific combining ability in two open-pollinated maize varieties and to determine the type of gene action involved in yield heterosis. The two source populations were the open-pollinated varieties, Kolkmeier and Lancaster, and the inbred line, Hy, was used as the common tester. After 5 cycles of recurrent selection, 6 population (C0 to C5) from (...).
Bibliography of Agriculture with Subject Index
Reciprocal recurrent selection in maize Zea mays L. under two systems of parent selection
Evaluation of Maize Populations Resulting from Divergent Recurrent Selection Under Interseeding with Red Clover
Author: Mohamed Farah Shirdon
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
Book Description