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Characterization of CO 2 Responsiveness in a Brassica oxycamp Interspecific Hybrid
Author(s) -
Uprety D. C.,
Dwivedi Neeta,
Mohan Rajat
Publication year - 1998
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1998.tb00362.x
Subject(s) - brassica , photosynthesis , stomatal conductance , sink (geography) , interspecific competition , biology , chlorophyll fluorescence , botany , chemistry , agronomy , horticulture , cartography , geography
A study of the characterization of CO 2 responsiveness in Brassica oxycamp and its parents Brassica oxyrrhina and Brassica campestris was done using open top chamber technology. The response of the X. B. oxycamp (hybrid) to elevated CO 2 was significantly positive in respect of photosynthesis and growth and similar to that of its parent B. campestris. X B. oxycamp and B. campestris with greater sink potential responded significantly, whereas B. oxyrrhina with a poor sink, did not respond to CO 2 enrichment. Photosynthetic changes at elevated CO 3 levels in the hybrid and parents are partially attributed to the CO 2 effects on stomatal conductance and chlorophyll fluorescence.