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Germplasm Potentials among Blue Panicgrass ( Panicum antidotale Retz.) Sample Populations 1
Author(s) -
Wright L. Neal
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100050044x
Subject(s) - germplasm , biology , germination , seedling , heritability , panicum , salinity , mannitol , agronomy , horticulture , botany , ecology , genetics , biochemistry
Evaluation of 36 sample populations of blue panicgrass ( Panicum antidotale Retz.) of widely different geographic origins showed trends of performance. The populations were evaluated for seedling survival after drouth stress, rate of germination, percentage of survival after salinity and mannitol stress, and weight of seed. Magnitude of broad sense heritability estimates and the wide range of response between populations suggested the presence of adequate genetic variability to insure that, with appropriate breeding procedures, the investigated characteristics could be improved. Since high survival percentage was related to slow germination rate, selection for either of these characteristics might isolate comparable germplasm. Results suggested that salt tolerance and mannitol stress during germination were related but that they were negatively associated with seedling survival. Effectiveness of the evaluations to isolate superior germplasm for drouth and salt stress during germination should be evident with continued cycles of evaluation.