Yield performance of VISCA sweet potato varieties in monoculture and intercrop with sweet corn / by Elda Penales Montilla.

By:

Montilla, Elda Penales [author]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite, 1987. Cavite State University- Main Campus,Description: 49p. : ill. ; 28 cm. illustrations ; cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

635.22 M76 1987

Online resources:

Click here to view thesis abstract and table of contents

Abstract: This study was conducted to determine the productivity of different VISCA sweet potato varieties when intercropped with sweet corn in terms of growth, Land Equivalent Ratio (LER) and yield. Sweet potato varieties showed no significant difference in the early stage of growth. They also showed no significant response to cropping combinations. Sweet potatoes in monoculture produced longer vines, longer and greater diameter tubers. Early flowering was observed on sweet potato plus corn. In general, intercrop situations produced higher and heavier marketable tubers than monoculture. VSP2 produced yield significantly higher than VSP and VSP3 in monoculture. In the intercrop situation 1 VSP1 and VSP2 showed an increase in production of about 16.99 and 12.96 percent)respectively while the VSP3 showed a reduction in yield of about 31.85 percent. Sweet corn in combination with VSP1 gave a mean yield of 6.76 tons per hectare compared to VSP1 in monoculture with a mean yield of 5.61 tons per hectare. VSP2+ corn gave a mean yield of 17.07 tons per hectare compared to VSP2 in monoculture 14.93 tons per hectare. Only v1 the VSP3 in monoculture gave a mean yield higher than the intercrop. The highest LER value of 1.21 was obtained in VSP1 + corn compared to the other cropping combinations. Generally, considering the profitability of both the main crop and the intercrop)VSP2 + corn gave the highest net positive yield for both crops.

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Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	635.22 M76 1987 (Browse shelf(Opens below))		Link to resource	Room use only	T-949		00004433

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Previous	635.22 L33 1984 Response of four selected AVRDC varieties of sweet potato to different topping frequencies /	635.22 M32 1994 Intercropping radish with bush sitao /	635.22 M72Ef 1979 Different planting materials in sweet potato /	635.22 M76 1987 Yield performance of VISCA sweet potato varieties in monoculture and intercrop with sweet corn /	635.22 Or6 1979 Yield response of two sweet potato cultivars to different levels of nitrogen-potassium fertilizer under different management practices /	635.22 P15 2019 Growth of sweet basil fertilized with different levels of black soldier fly (Hermetia illucens) Larvae Frass /	635.22 P19 1979 Response of sweet potato to N. K. fertilization /	Next

Thesis (B.S.A.--Horticulture) Don Severino Agricultural College

Includes bibliographical references.

This study was conducted to determine the productivity of different VISCA sweet potato varieties when intercropped with sweet corn in terms of growth, Land Equivalent Ratio (LER) and yield.

Sweet potato varieties showed no significant difference in the early stage of growth. They also showed no significant response to cropping combinations.

Sweet potatoes in monoculture produced longer vines, longer and greater diameter tubers. Early flowering was observed on sweet potato plus corn. In general, intercrop situations produced higher and heavier marketable tubers than monoculture.

VSP2 produced yield significantly higher than VSP and VSP3 in monoculture. In the intercrop situation 1 VSP1 and VSP2 showed an increase in production of about 16.99 and 12.96 percent)respectively while the VSP3 showed a reduction in yield of about 31.85 percent.

Sweet corn in combination with VSP1 gave a mean yield of 6.76 tons per hectare compared to VSP1 in monoculture with a mean yield of 5.61 tons per hectare. VSP2+ corn gave a mean yield of 17.07 tons per hectare compared to VSP2 in monoculture 14.93 tons per hectare. Only v1 the VSP3 in monoculture gave a mean yield higher than the intercrop. The highest LER value of 1.21 was obtained in VSP1 + corn compared to the other cropping combinations.

Generally, considering the profitability of both the main crop and the intercrop)VSP2 + corn gave the highest net positive yield for both crops.

Submitted to the University Library 05/04/2007 T-949

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