Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/S0167-8809(96)01115-2
Title (Primary) Effect of cultivar difference ('IR72', 'IR65598' and 'Dular') on methane emission
Author Wang, B.; Neue, H.U.; Samonte, H.P.
Source Titel Agriculture, Ecosystems & Environment
Year 1997
Department BOPHY; BOCHE; BOFO
Volume 62
Issue 1
Page From 31
Page To 40
Language englisch
Abstract

Cultivar characteristics that may influence cultivar differences in methane emissions were investigated under greenhouse conditions. Methane emission rates were monitored by the closed chamber technique. Methane emission rates differed significantly among the three rice cultivars grown in the greenhouse. Traditional rice cultivar ‘Dular’ had the highest methane emission rates followed by improved modern cultivar ‘IR72’, while newly developed high-yielding plant type ‘IR65598’ had the lowest methane emission rates. Significant correlation between methane emission rates and dissolved methane in soil solution indicated that the differences in methane emission rates were determined by the differences in source strength of methanogenic materials. A high correlation was found between methane emission rates and root dry weight, and between root dry weight and total carbon released from roots. At a given partial pressure of methane in soil, methane emission rate was also correlated with tiller number at tillering stage. Root airspace and root oxidation power differed among rice cultivars, but neither correlates with methane emission rates.

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=9692
Wang, B., Neue, H.U., Samonte, H.P. (1997):
Effect of cultivar difference ('IR72', 'IR65598' and 'Dular') on methane emission
Agric. Ecosyst. Environ. 62 (1), 31 - 40 10.1016/S0167-8809(96)01115-2