Agronomic Performance of Polycross Progenies of Four Sugarcane Parental Clones

Date

4-1976

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Manuel M. Lantin

Abstract

A study was conducted to compare the breeding potentials of four parental clones of sugarcane (VMC 67-420, Phil 6015, PR 1013 and CP 29-116) on the basis of the performance of their polycross progenies, and to identify good hybrid lines as part of the guest for improved varieties.

Progenies of VMC 67-420had the highest number of millable stalks whch was significantly different only from that of the progenies of Phil 6015, the lowest among the populations. The observed difference is number of millable stalks between VMC 667-420 and Phil 6015 was not reflected in tonnage. Tonnage did not significantly differ among and within parental clones.

In brix, progenies of PR 1013 gave a mean value of 19.34 which was significantly higher than VMC 67-420 and Phil 6015. While progenies of VMC 67-420 had the highest cane yield, they come out last in brix with mean value of 16.44.

Variability within each parental clone was estimated as standard deviation computed based on the mean of the progenies. For both brix and number of millable stalks, it appeared that Phil 6015 gave rise to the most variable half-sib progeny population and CP 29-116, the least variable.

Tons-brix a crude expression of sugar yield, was computed for each promising hybrid showed HP #7 of CP 29-116, HP #2 of Phil 6015, HP #7 and 10 of PH 1013 as the promising progenies among all the populations with values of 1444.97, 1364.5, 1279.83 and 1219.80, respectively. HP #7 of CP 29-116 gave the highest TC/ha with 74.83 while HP #7 of PR 1013 gave the highest brix of 22.32.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1976 A42 M36

Document Type

Thesis

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