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Influence of soil moisture on yield and quality of tomato on a heavy clay soil

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conference contribution
posted on 06.12.2017, 00:00 authored by Surya BhattaraiSurya Bhattarai, David MidmoreDavid Midmore
The effect of three soil moisture regimes [deficit: 22-26mm H2O per 100 mm soil depth, field capacity (FC): 34-43 mm and saturation: 44-48 mm] on growth, yield and quality of a tomato (Lycopersicon esculentum L. Mill) cultivar ‘Improved Apollo’ was examined on a heavy clay soil. Leaf area and plant height were reduced in deficit and saturation, whereas stem diameter increased with increasing soil moisture. Fruit yield declined by 31 and 24% in deficit and saturation respectively compared with the FC. Maximum attainable fruit yield would be achieved with 35 mm H2O per 100 mm soil depth. Total titratable acidity (TTA), ascorbic acid (AA) and firmness decreased and pH increased with increasing soil moisture. Dry matter, total soluble solids (TSS), TSS: TTA and blossom end rot (BER) were highest for deficit, followed by saturation and lowest at FC. Although yield increased and BER decreased at FC, other quality improved with water stress compared to FC.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Start Page

451

End Page

454

Number of Pages

4

Start Date

01/01/2005

ISBN-13

9789066051270

Location

Coolum, Qld.

Publisher

International Society of Horticulture Science

Place of Publication

Netherlands

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Primary Industries Research Centre; TBA Research Institute;

Era Eligible

Yes

Name of Conference

International Symposium on Harnessing the Potential of Horticulture in the Asian-Pacific Region