Studies on sweet corn as potential young cob corn (Zea mays L.)

Date

9-1979

Abstract

Three experiments were conducted in order to select a potential young cob corn variety, and to determine the nutritional value of young cob corn, the proper stage for harvesting and the optimum rate of fertilizer and plant population for maximum yield.

The nutritional composition of young cob corn is similar in amount and kind with some non-legume vegetables. It is best harvested at 2 days after silking for canning and 3 days for local consumption.

In terms of (1) earliness, (2) high yield, (3) number of ears/plant, (40 high cob-husk ratio (5) high harvest index (6) shortness, (7) good quality, and (8) high enzyme nitrate reductase, Golden Cross Bantam and Super sweet were found to be promising.

Different plant populations of Super Sweet required different optimum rates of fertilizer for maximum yield. For plants grown at population of 60,000 plants/ha the optimum rate was 195 kg/ha, at 120,000 plants/ha, 186 kg N/ha and at 180,000 plants/ha, 192 kg N/ha.

Increased rates of nitrogen application and plant population significantly affected agronomic characteristics, nitrate reductase activity, yield and its components compared with the control. Increased rate of nitrogen application coupled with high population density tremendously increased yield/ha.

Enzyme nitrate reductase in corn leaf increased with increased nitrogen application but deceased with increased plant population.

Document Type

Dissertation

Degree

Doctor of Philosophy in Horticulture

College

Graduate School (GS)

Adviser/Committee Chair

Dr. Ofelia K. Bautista

Committee Member

Dr. B. C. Felizardo, Dr. P. E. Sajise, Dr. O. F. Sison

Language

English

LC Subject

Sweet corn

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 996 1979 A42 Y63

Notes

Doctor of Philosophy (Horticulture)

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