NFLUENCE OF SEAWEED EXTRACT ON GROWTH, YIELD AND QUALITY OF KIWIFRUIT [Actinidia deliciosa (A. Chev.) C.F. Liang & A.R. Ferguson]
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Date
2019-11
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled “Influence of seaweed extract on growth, yield and
quality of kiwifruit [Actinidia deliciosa (A. Chev.) C.F. Liang & A.R. Ferguson]” was carried out
in kiwifruit block of Department of Fruit Science during the year 2018. Nine years old kiwivines cv.
Allsion of uniform size and vigour, planted at 4m × 6m spacing were selected for studies. The
experiment was laid out in Randomized Block Design with 11 treatments viz; T1 (SWE Spray @ 1000
ppm at FS), T2(SWE Spray @ 2000 ppm SWE at FS), T3(SWE Spray @ 3000 ppm at FS), T4(SWE
Spray @ 1000 ppm at FS and 10 DAFS), T5(SWE Spray @ 2000 ppm at FS and 10 DAFS), T6(SWE
Spray @ 3000 ppm at FS and 10 DAFS), T7(SWE dip @ 1000 ppm 10 DAFS),T8(SWE dip @ 2000
ppm 10 DAFS),T9(SWE dip @ 3000 ppm 10 DAFS),T10(CPPU dip @ 5 ppm 10 DAFS) and T11
[Control (Untreated)]. The present investigation compared different seaweed extract treatments,
applied at different time and concentration with CPPU and untreated control. The highest increase in
fruit length and fruit diameter in developing kiwifruit was recorded with T9(SWE dip @ 3000 ppm 10
DAFS) which was non-significant with CPPU treatment and wassuperior to control. The average fruit
length, fruit diameter, average fruit weight, fruit firmness and total fruit yield were also found to be
the highest with the same treatment. Fruit quality parameters namely fruit TSS and total sugars were
recorded maximum with T6(SWE Spray @ 3000 ppm at FS and 10 DAFS). The TSS:acid ratio and
reducing sugars were recorded highest with T9(SWE dip @ 3000 ppm 10 DAFS). The treatment T8
(SWE dip @ 2000 ppm 10 DAFS) was found to advance the harvesting maturity by 6 days and this
treatment also exhibited lowest physiological loss in weight (% PLW) with highest ascorbic acid
content. After 15 days storage at ambient room temperature (25±2oC), the treatment T9 (SWE dip @
3000 ppm 10 DAFS) recorded highest TSSacid ratio and the lowest titratable acidity.
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