GENERATION MEANS ANALYSIS OF RIGHT-CENSORED RESPONSE-TIME TRAITS - LOW-TEMPERATURE SEED-GERMINATION IN TOMATO

被引：12

作者：

SCOTT, SJ ^{[1
]}

JONES, RA ^{[1
]}

机构：

[1] UNIV ARKANSAS, DEPT HORT & FORESTRY, FAYETTEVILLE, AR 72701 USA

来源：

EUPHYTICA | 1990年 / 48卷 / 03期

关键词：

cold tolerance; genetic analysis; Lycopersicon esculentum; missing data; response-time data; seed germination; tomato;

D O I：

10.1007/BF00023656

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

In studies to determine the inheritance of response-time traits, such as time to seed germination, some viable individuals may fail to respond during an experiment. If these right-censored observations are ignored, sample means and variances will be underestimated. This is illustrated using data from time to seed germination at 9°C for Lycopersicon esculentum (Mill.) fast germinating PI 120256, slow-germinating T3 and their reciprocal F1, F2 and backcross progeny. This paper presents methods to detect and to accommodate right-censored data in generation means analysis. Genetic interpretations derived from corrected and uncorrected estimates of generation means and variances are compared. Correction for right-censoring increased estimates of environmental and phenotypic variances, and decreased heritability estimates. © 1990 Kluwer Academic Publishers.

引用

页码：239 / 244

页数：6

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