Karyanto, Agus (1997) RESPIR{SI GELAP PADA FASE REPRODUKTIF TANAMAN GANDUM SEBAGAI RESPON TERHADAP SUHU TINGGI. In: SEMINAR DISERTASI DAN HASIL PENELITIAN DOKTOR UNILA, 24-25 SEPTEMBER 1996, UNIVERSITAS LAMPUNG, BANDAR LAMPUNG.

Preview

Text makalah Pros Sem Disertasi UNILA_1997.pdf Download (3MB) | Preview

Abstract

Respiration is strongly affected by high temperature. Understanding of the control of respiration at maturing wheat plants (Triticum aestivum L.) is, however, limited and the consequences of changes in respiratory parameters are like to be unpredictable. Objectives were to investigate the relationship between the rate of respiratory oxygen uptake, the involvement of the alternative pathway, and their interaction with growth and measurement temperature. Plants were grown in controlled chambers and exposed to either 25/20oC or 35/30oC day/night temperature just after anthesis. As growth and measurement temperature increased, the ratio of respiration by the alternative pathway decreased in favor of the cytochrome pathway. Although alternative pathway activity was low at 40oC, the inactivation was reversible. The stimulation of respiration by high temperature was mediated via the cytochrome pathway and residual respiration. The association between decreasing respiration rates through maturation and senescence suggests that temperature=dependent respiration is also regulated by the availability of substrates, which is limiting during post anthesis high temperature stress.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture
Divisions:	Fakultas Pertanian (FP) > Prodi Agroteknolgi
Depositing User:	Dr. AGUS KARYANTO
Date Deposited:	02 May 2023 01:41
Last Modified:	02 May 2023 01:41
URI:	http://repository.lppm.unila.ac.id/id/eprint/50859

Actions (login required)

View Item