Yield and Yield Components of Early and Full Maturing Cottons (Gossypium hirsulum L.)

Date

10-1991

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Rodolfo P. Cabangbang

Co-adviser

Raymond F. Bader

Abstract

Ten early, medium and late maturing cotton cultivars were studied in terms of variability of plant characters and their associations with high seed cotton yield and earliness. Number of sympodial branches, days to first flower bloom, seed index, percent lint recovery and seedcotton yield showed highly significant varietal differences among entries. Moreover, plant height, number of bolls, weight per boll, percent crop harvested 1 and 2 were also significant. BN86-4-1-1, an early maturing entry, produced the highest seedcotton yield, significantly higher than late maturing entriesand check cultivar, UPL-Ct 2.

Correlation and path-coefficient analyses revealed that the number of boils was significantly and positively correlated with seedcotton yield and earliness parameters; percent crop harvested 1, 2 and 3. Number of sympodial branches and dry weight of reproductive forms were also positively associated with seedcotton yield. Other character such as leaf area index, dry weight of the stems, total dry matter yields, weight per boil and percent lint recovery were negatively correlated with seedcotton yield and earliness parameter. These characters were found to have negative direct and indirect effects on seedcotton yield and earliness parameter.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1991 A42 M36

Document Type

Thesis

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