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On the gain by spreading seeds; a statistical analysis of sowing experiments

 

作者: Lennart Bondesson,  

 

期刊: Scandinavian Journal of Forest Research  （Taylor Available online 1988）
卷期: Volume 3, issue 1-4  

页码: 305-314

 

ISSN:0282-7581

 

年代: 1988

 

DOI:10.1080/02827588809382519

 

出版商: Taylor & Francis Group

 

关键词: Scots pine;zero‐plot frequency;spatial correlation;p‐values;mixed binomial model;non‐linear regression;optimal number of seeds and spots;gamma distribution;negative binomial distribution

 

数据来源: Taylor

 

摘要:

An attempt is made to quantify the reduction in zero‐plot frequency which is obtained by better spreading of seeds than what is common. There is presented a simple method based on the mixed binomial model to calculate from experimental data zero‐group frequencies for any number of seeds per spot less than the number in the real experiment. A model describing how the zero‐group frequency depends on the number of spots per plot and number of seeds per spot is developed.

 

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