HERITABILITY AND GENOTYPIC AND ENVIRONMENTAL CORRELATIONS OF CREEPING ROOT AND PERSISTENCY IN MEDICAGO SATIVA L

被引：22

作者：

DADAY, H

机构：

[1] Division of Plant Industry CSIRO, Canberra, 2601

来源：

AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH | 1968年 / 19卷 / 01期

关键词：

D O I：

10.1071/AR9680027

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

This study examines the relationships between creeping-rootedness, plant diameters, and persistency in lucerne. Highly significant positive genetic correlations were found between all three plant characters among families under continuous grazing. The investigations disclosed several trends in genetic and environmental correlations, the significance of which is discussed. The heritabilities for the proportion of creeping plants (0.41), plant diameter (0.32-0-45), and survival (0.23-0-46) were all high, indicating that response to selection is possible. The results showed that plant density decreased under continuous grazing; 66% of the creeping-rooted plants but only 8% of Hunter River plants survived after 17 months of continuous grazing. © 1968 CSIRO. All rights reserved.

引用

页码：27 / &

共 7 条

[1]

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[2]

DADAY H., 1961, AUSTRALIAN JOUR EXPTL AGRIC AND ANIMAL HUSBANDRY, V1, P67, DOI 10.1071/EA9610067

[3] BREEDING FOR CREEPING ROOT IN LUCERNE (MEDICAGO SATIVA L.) .1. INITIAL RESPONSE TO SELECTION [J].

DADAY, H .

AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1962, 13 (05) :813-&

[4]

FALCONER DS, 1960, INTRODUCTION QUANTIT

[5]

HEINRICHS DH, 1954, CAN J AGRIC SCI, V34, P268

[6]

KEHR WR, 1963, 211 RES B NEB AGR EX

[7]

MURRAY BEATRICE E., 1957, CANADIAN JOUR BOT, V35, P463, DOI 10.1139/b57-041

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