Characterization of Ethiopian chickpea (Cicer arietinum L.) germplasm accessions for phosphorus uptake and use efficiency II. Interrelationships of characters and gains from selection

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Gemechu Keneni
Endashaw Bekele
Fassil Assefa
Muhammad Imtiaz
Tolessa Debele
Kifle Dagne
Emana Getu

Abstract

The efficient use of phosphorus fertilizer in an environmentally friendly and sustainable ways is preferredbecause of cost and ecological concerns. An experiment was conducted with 155 chickpea genotypes in 2009/10at two locations (Ambo and Ginchi) in Ethiopia to study interrelationships, broad-sense heritability and geneticgains from selection for attributes of phosphorus-uptake and use efficiency and other agronomic characters onwhich data were collected. Significant positive correlations were observed between characters of plant tissuephosphorus contents (r = 0.22-0.85), between plant tissue phosphorus contents and phosphorus yields (r = 0.22-0.99),between plant tissue phosphorus yields (r = 0.23-0.89) and parameters of phosphorus-uptake and -use efficiency in anumber of cases. Grain yield and some of its components showed significant positive correlations (r = 0.70-0.99) withphosphorus yield efficiency. Broad-sense heritability values ranged from 60-93% and genetic advance valuesranged from 4-62% in the absence of phosphorus. The corresponding broad-sense heritability and genetic advancevalues in the presence of phosphorus ranged from 59-93% and 4-79%, respectively. Selection among the Ethiopianchickpea gene pool for most of the traits studied would be expected to be effective, indicating the need for theinitiation of a planned breeding program for improving phosphorus uptake and use efficiency.

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How to Cite
Gemechu Keneni, Endashaw Bekele, Fassil Assefa, Muhammad Imtiaz, Tolessa Debele, Kifle Dagne, & Emana Getu. (2020). Characterization of Ethiopian chickpea (Cicer arietinum L.) germplasm accessions for phosphorus uptake and use efficiency II. Interrelationships of characters and gains from selection. Ethiopian Journal of Applied Science and Technology, 6(2), 77-96. Retrieved from https://ejhs.ju.edu.et/index.php/ejast/article/view/944
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Author Biographies

Gemechu Keneni, Addis Ababa, Ethiopia

Holetta Agricultural Research Center, P. O. Box 2003, Addis Ababa, Ethiopia

Endashaw Bekele, Addis Ababa, Ethiopia

of Natural Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

Fassil Assefa, Addis Ababa, Ethiopia

College of Natural Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopi

Muhammad Imtiaz, Aleppo, Syria

International Center for Agricultural Research in the Dry Areas (ICARDA), P. O. Box 5466, Aleppo, Syria

Tolessa Debele, Addis Ababa, Ethiopia

Ethiopian Institute of Agricultural Research, P. O. Box 2003, Addis Ababa, Ethiopia

Kifle Dagne, Addis Ababa, Ethiopia

College of Natural Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

Emana Getu, Addis Ababa, Ethiopia

College of Natural Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia