Assessing the effect of organic and inorganic fertilizers on physiological quality and biochemical composition of 30B80 yellow corn (Zea mays L.) seeds

Date

4-2013

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Ma. Fatima O. Mercado

Abstract

Seeds of 30B80 hybrid corn from a previous experiment which used different fertilizers treatments such as (A) control ? no fertilizer (B) pure inorganic ?urea (46-0-0) (C) pure organic-commercial organic fertilizer (COF, 4.64-2.36-4.29) (D) organic+ inorganic as basal and (E) organic +inorganic as sidedress were used in this study. Physiological tests for seed viability and vigor were done and biochemical composition of seeds were analyzed. Seed viability was tested using the standard germination procedure while vigor was tested using indirect methods such as germination at first count, germination after Accelerated Ageing Test (AAT), speed of germination, seedling growth rate test and seedling emergence. Seed Moisture content was also determined. For biochemical analysis, starch, fat and protein contents of seeds were determined. Germination percentage at first and final count and after AAT showed insignificant differences among fertilizer treatments. Significant differences were found in vigor parameters such as vigor index, seedling length, seedling dry matter and seedling emergence. In terms of seed biochemical composition such as starch, fat and protein contents, only starch and fat contents showed significant differences among fertilizer treatments. Commercial organic fertilizer (pure organic) produced seeds with the highest viability and vigor expressed as germination at first count and after AAT, seedling length, dry weight and seedling emergence. Urea applied basally + COF had greatest effect on vigor parameters like seedling length and vigor index. Urea (pure inorganic) ranked second to COF in improving seed quality attributes such as germination at first and final count and after AAT and seedling dry xi weight. Moisture content was highest in seeds produced using urea. Application of either organic or inorganic fertilizer lowered the starch and protein content of corn seeds while fat content increased when COF+ urea as sidedress were applied.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2013 A3 /M37

Document Type

Thesis

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