搜寻
Now showing items 1-10 of 18
Pyruvate decarboxylase activity of Cyperus rotundus L. under upland and lowland conditions
(2006)
Pyruvate decarboxylase (PDC) activity was measured from the roots of Cyperus rotundus seedlings obtained from upland and lowland ecosystems. PDC activity was detected in small amounts in the lowland plants but was almost absent in the upland plants during germination in their respective ecotype environments. Subjecting the seedlings to 24 h of hypoxia resulted in a significant increase in enzyme activity in the lowland plants but leveled off as hypoxia was prolonged to 48 h. The upland plants exhibited an increase in PDC activity after 24 h hypoxia treatment following germination under upland conditions, which was further increased as the hypoxic treatment was extended to 48 h.
Total amylase activity present in the tubers of the lowland plants prior to germination was found to be high. Amylase activity in the lowland tuber decreased alter 24 h and 48 h of hypoxia following germination in water-saturated soil, but no change in amylase activity levels took place in the upland tubers prior to and during germination, and after 24 h and 48 h of hypoxia treatment.
Thus, the lowland ecotype of C. rotundus adapted to flooded conditions by maintaining high levels of soluble sugars to fuel the ethanol fermentation pathway, and by utilizing low rates of ethanol fermentation to conserve energy sources throughout extended periods of flooding stress.
The production of PDC isozymes was not observed to occur in the lowland weed ecotype after 24 h and 48 h of hypoxic treatment following germination. The PDC enzyme induced by hypoxia in both the upland and lowland weeds was characterized to have a distinct lag phase....
Academic motivation and online engagement of graduate students
(2020)
Various studies have been conducted on motivation and engagement separately among students, however, only few studies talk about the Academic Motivation of graduate students and the use of engagement as a dependent variable. ...
Factors related to the extent of involvement in social and political activities of senior college students in two universities in Iloilo City
(1997)
The study was conducted to determine the relationship between selected factors and the extent of involvement in social and political activities of senior college students in two universities in Iloilo City. This descriptive ...
Level of self-concept of the College of Theology students at Central Philippine University, school year 2005-2006
(Central Philippine University, 2006-06)
This study determined the level of self-concept of the College of Theology (COT) students at Central Philippine University (CPU), school year 2005-2006. This study is a descriptive-relational research and it used the ...
Association between socio demographic factors and locus of control and self efficacy
(2013)
This correlational study was conducted in order to determine the association between socio demographic factors to locus of control and self efficacy. Specifically it sought to describe the respondents according to sex, ...
Networking as a development strategy of NGOs in the Province of Iloilo
(2000)
This study aims to describe the dynamics of the Iloilo Council of Social Development, Inc. (ICSD) as a network of NGOs in their collaborative effort towards social development. Specifically, the study addresses the following ...
Attitude toward and achievement in chemistry of first year college students of Central Philippine University
(2003)
This study entitled “Attitude Toward and Achievement in Chemistry of First Year College Students of Central Philippine University,” was aimed to determine the attitude toward chemistry of the first year college students ...
The effectiveness of magnetic atomic models as tools in the understanding of chemical bonding concepts
(1977)
This study involved the construction of the magnetic atomic models and the determination of their effectiveness as tools for the understanding of chemical bonding concepts.
The atomic models represented were; sodium, ...
Mga isyu at suliranin sa ortograpiyang Kinaray-a
(2013)
Sa agarang pagpapatupad ng DepEd ng programa nitong ‘Tongue-Based Multilingual Education’ (MTB-MLE sa buong Pilipinas, isa sa mga kailangan ay ang pagtatag ng ortograpiya ng unang wika. Dahil wala pang naisumiteng Ortograpiya ...
Assessing the guidance and counseling needs of students with special needs in higher education institutions
(2012)
The increase in number of students with special needs in higher education institutions necessitates greater understanding of their needs. The purpose of this study was to determine the guidance and counseling needs of ...