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Effect of Side Shoot Removal and Vine Pruning on Growth and Yield of Sweet Gourd

R Sultana
Regional Agricultural Research Station, BARI, Jamalpur

M S Rahman
Regional Agricultural Research Station, BARI, Jamalpur

A Akter
Regional Agricultural Research Station, BARI, Jamalpur

Abstract/ Executive Summary:

A study was conducted during 2018 to 2019 at Regional Agricultural Research Station, Jamalpur to effect of side shoot removal and vine pruning on growth and yield of sweet gourd (Cucurbita moschata Duch.ex Poir). Seven different treatments viz T₁₌Side shoot pruining up to 6^th, T₂₌Side shoot pruning up to9^th,T₃₌Side shoot pruining up to 12^th,T₄₌Maintaining three secondary vines after pruning, T₅₌Maintaining four secondary vines after pruning, T₆₌Maintaining five secondary vines and T₇₌Control after pruning. In addition, character association with fruit and seed yield also done. Results of pruning revealed that T₅(4-vine) produced the highest fruit yield (fruit yield,12.09t/ha).However fruit size individual fruit weight and seed quality were better in T₅₌Maintaining four secondary vines after pruning other treatments .On the other hand analysis revealed that pruning had important effects on the yield and quality of fruit and seeds in sweet gourd.

Keywords: Sweet gourd, Pruining, Vine

Location: RARS, Jamalpur

Start Date: 00-00-2018

End Date: 00-00-2019

Program Area: Variety and Species

Commodity: Sweet gourd

Objectives:

Present study was conducted to develop the side shoot removal and vine pruning stages in maximizing growth and yield of sweet gourd.

Methodology:

The experiment was carried out at the research field at Regional Agricultural Research Station, Jamalpur during October 2018. The experiment consisted one factors, i.e, Seven different treatments viz T₁₌Side shoot pruining up to 6^th, T₂₌Side shoot pruning up to9^th,T₃₌Side shoot pruining up to 12^th,T₄₌Maintaining three secondary vines after pruning, T₅₌Maintaining four secondary vines after pruning, T₆₌Maintaining five secondary vines and T₇₌Control after pruning. The seeds of sweet gourd varieties were sown in poly bags on 21th Oct 2018 and the seedlings were transplanted in the main field on 12th Nov 2018. The experiment was laid out in randomized complete block design with two replications. The unit plot size was 8.0m x 2.5 m maintaining 2.0m x 2.5 m spacing. The land was fertilized with cow dung, N, P, K, S and Zn @ 20000, 175, 175, 150, 100 and 12 kg/ha, respectively. The total amount of cow dung, P, S and Zn and 1/3rd of each of N and K were applied during final land preparation and in the pit. The rest of N and K were applied in four equal installments at 21, 35, 55 and 75 days after transplanting. The intercultural operations were done as and when needed. Pruning started after first female flower opening in the experiment. Data were recorded from two randomly selected plants per treatment per replication on number of vines/plant, weight of vine/plant (kg), vine length (cm), vine diameter (cm), leaf area (cm2), internodes length (cm) and vine yield (t/ha). The collected data on different characters were statistically analyzed using Statistical Software STAR which was developed by IRRI.

Source of Information: Annual Research Report- 2018-19, RARS, BARI,Jamalpur

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Performance of seven different treatments in respect of pruning was investigated and the findings of the present study have been discussed. Number of node for first male flowers was highest T₁(8.00) and lowest T₇(6.63). No. of node for 1^stfemale flower was highest (26.50) and lowest T₄ (20.00). No. of male flowers /vine was found T₁(11.50) and lowest T₃(8.50) and No. of female flowers /vine T₅(13.00) and lowest T₃(7.0). Vine Length was found highest T₁(113.50) and lowest T₂(57.55). No. of leaves /vine was found highest T₁(26.50) and lowest T₇(12.50). No. of leaves /plant was highest T₅(22.50) and lowest T₂(120.00). No. fruits set/vine was found highest in T₅(5.00 )and fruit weight highest T₅(44480).50kg and lowest T₃(2675.50)kg. Yield (t/ha) was found highest in T₅(12.09) t/ha and lowest T₇ (8.13) t/ha. Disease was highest in T₇(4.20) and insect infestation was found highest in T₇(4.55). The present results of the experiment revealed that pruning has an important effect on yield and quality of fruit and seed in sweet gourd. Considering all the performance of different pruning operations T₁(Side shoot up to 6^th) was found most suitable operation for commercial fruit and seed production . On the other hand T₅(4-vine) was suitable for only large size fruit and best quality seed production.

Knowledge Management: Report/Proceedings