학술논문
Variability in soil properties influencing pigeonpea (Cajanus cajana L.) yield: a multivariate statistical analysis [version 3; peer review: 2 approved]
Document Type
article
Author
Source
F1000Research, Vol 10 (2023)
Subject
Language
English
ISSN
2046-1402
Abstract
Aims: The aim of the study was to reveal the variability in soil properties influencing pigeonpea (Cajanus cajana L.) seed yield under semi-arid rainfed condition. Methods: Soils were initially classified into series level and further these series were divided into soil-phase units. For two site years viz., 2018-19 and 2019-20, surface soil samples from each soil-phase unit were collected before sowing of pigeonpea and subsequently crop growth parameters at critical stages were recorded. Results: The principal component analysis with varimax rotation resulted in seven components for both the site years, having eigenvalues greater than one, explained more than 80% of the variability. The step wise linear regression analysis showed that the pigeonpea seed yield was linearly correlated with PC3 (p