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

By:

Yodpetch, Chanai [author]

Contributor(s):

Bautista, Ofelia K [adviser]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1979. Cavite State University- Main Campus,Description: 138 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

633.15 Y7 1979

Online resources:

Click here to view thesis abstract and table of contents

Abstract: CHANAI YODPETCH, University of the Philippines at Los Banos, September, 1979, Studies on Sweet Corn as Potential Young Cob Corn (Zea mays L.). Major Professor: Dr. Ofelia K. Bautista. 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-~Llegume 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, (4) 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 a 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 decreased with increased plant population.

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Title notes ( 4 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	633.15 Y7 1979 (Browse shelf(Opens below))		Link to resource	Room use only	T-1400		00002291

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Previous	633.15 V71p 1987 Production of sweet corn using complete fertilizers /	633.15 V71y 1985 Yield comparison of yellow and white corn in Lumipa, Gen. Emilio Aguinaldo /	633.15 W84 1989 Modelling and simulation of the population dynamics of the Asian corn borer, Ostrinia furnacalis (Guenee) (Pyralidae: Lepidoptera) in Thailand /	633.15 Y7 1979 Studies on sweet corn as potential young cob corn (Zea mays L.) /	633.15 Y9 1989 Growth, yield and seed quality of corn (Zea mays L.) and soybean (Glycine max (L.) Merr.) as affected by population density in row intercropping /	633.159 T12 1990 Comparative efficacy of makabuhai (Tinospora rumphii Beerl.), black pepper (Piper nigrum Linn.), and red pepper (Capsicum frutescens Linn.) against corn weevil (Sithophilus zeamais M.) /	633.174 B41 1989 Effec of fertilizer placement on the growth and yield of sorghum (Sorghum bicolor) /	Next

Thesis (Ph.D. - - Horticulture) University of the Philippines, College, Laguna.

Includes bibliographical references.

CHANAI YODPETCH, University of the Philippines at Los Banos, September, 1979, Studies on Sweet Corn as Potential Young Cob Corn (Zea mays L.). Major Professor: Dr. Ofelia K. Bautista.

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-~Llegume 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, (4) 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 a 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 decreased with increased plant population.

Submitted to the University Library 01/07/1994 T-1400