Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon
Harvesting the grapes before the monsoon season is crucial to ensure the quality of berry and bunches. This study aims to identify the optimal window for pruning and hydrogen cyanamide (HC) application to prepone the berry harvesting. The experiment was conducted in randomized complete block desig...
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Firenze University Press
2024-10-01
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| Series: | Advances in Horticultural Science |
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| Online Access: | https://oaj.fupress.net/index.php/ahs/article/view/16128 |
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| author | Nishes Ghimire Puja Sapkota Pragya Poudel R. Sapkota Kishor Chandra Dahal |
| author_facet | Nishes Ghimire Puja Sapkota Pragya Poudel R. Sapkota Kishor Chandra Dahal |
| author_sort | Nishes Ghimire |
| collection | DOAJ |
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Harvesting the grapes before the monsoon season is crucial to ensure the quality of berry and bunches. This study aims to identify the optimal window for pruning and hydrogen cyanamide (HC) application to prepone the berry harvesting. The experiment was conducted in randomized complete block design with five treatments and four replications. Treatments were five different pruning dates in 2021: Jan. 17, Jan. 24, Jan. 31, Feb. 7 and Feb. 14, followed by 5% HC application one week after pruning. Annual growth stages of grapevine were recorded by using modified E-L growth stage; reproductive attributes recorded during flowering; and vine yield and berry quality attributes recorded at harvesting. The earlier pruning resulted earlier budburst compared to late pruning. Vines prunefed after Feb. 7 had <50% budburst, while vines pruned before Feb. 7 reached 50% budburst, exhibiting no differences in number of days needed to achieve it. Jan. 17 pruning had the highest budburst (%) and bud fruitfulness (%), where pruning on Feb. 7 had lower values. Average bunch weight did not differ while berry quality attributes differed between treatments for the same day harvest. The negative responses in late pruned and HC treated vines, potentially attributed to the phytotoxic effect of HC on tender buds near the natural time of dormancy break. The early pruning and subsequent application of HC triggered earlier budburst, and advances flowering and harvesting of berries in grapevine. This research demonstrated a potential techniques for advancing harvesting time (2-3 weeks) in grapevine.
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| format | Article |
| id | doaj-art-e999d616f73c46fbb332dc441271bf4e |
| institution | OA Journals |
| issn | 0394-6169 1592-1573 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Firenze University Press |
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| series | Advances in Horticultural Science |
| spelling | doaj-art-e999d616f73c46fbb332dc441271bf4e2025-08-20T02:10:32ZengFirenze University PressAdvances in Horticultural Science0394-61691592-15732024-10-0138310.36253/ahsc-16128Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet SauvignonNishes Ghimire0Puja Sapkota1Pragya Poudel2R. Sapkota3Kishor Chandra Dahal4Institute of Agriculture and Animal Science, Tribhuvan University Kathmandu, Nepal.Institute of Agriculture and Animal Science, Tribhuvan University Kathmandu, Nepal.Institute of Agriculture and Animal Science, Tribhuvan University Kathmandu, Nepal.Institute of Agriculture and Animal Science, Tribhuvan University Kathmandu, Nepal.Institute of Agriculture and Animal Science, Tribhuvan University Kathmandu, Nepal. Harvesting the grapes before the monsoon season is crucial to ensure the quality of berry and bunches. This study aims to identify the optimal window for pruning and hydrogen cyanamide (HC) application to prepone the berry harvesting. The experiment was conducted in randomized complete block design with five treatments and four replications. Treatments were five different pruning dates in 2021: Jan. 17, Jan. 24, Jan. 31, Feb. 7 and Feb. 14, followed by 5% HC application one week after pruning. Annual growth stages of grapevine were recorded by using modified E-L growth stage; reproductive attributes recorded during flowering; and vine yield and berry quality attributes recorded at harvesting. The earlier pruning resulted earlier budburst compared to late pruning. Vines prunefed after Feb. 7 had <50% budburst, while vines pruned before Feb. 7 reached 50% budburst, exhibiting no differences in number of days needed to achieve it. Jan. 17 pruning had the highest budburst (%) and bud fruitfulness (%), where pruning on Feb. 7 had lower values. Average bunch weight did not differ while berry quality attributes differed between treatments for the same day harvest. The negative responses in late pruned and HC treated vines, potentially attributed to the phytotoxic effect of HC on tender buds near the natural time of dormancy break. The early pruning and subsequent application of HC triggered earlier budburst, and advances flowering and harvesting of berries in grapevine. This research demonstrated a potential techniques for advancing harvesting time (2-3 weeks) in grapevine. https://oaj.fupress.net/index.php/ahs/article/view/16128Budbreakerbudbursthydrogen cyanamidepruningviticulture |
| spellingShingle | Nishes Ghimire Puja Sapkota Pragya Poudel R. Sapkota Kishor Chandra Dahal Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon Advances in Horticultural Science Budbreaker budburst hydrogen cyanamide pruning viticulture |
| title | Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon |
| title_full | Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon |
| title_fullStr | Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon |
| title_full_unstemmed | Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon |
| title_short | Pruning date and hydrogen cyanamide effects on growth and yield of grapevine var. Cabernet Sauvignon |
| title_sort | pruning date and hydrogen cyanamide effects on growth and yield of grapevine var cabernet sauvignon |
| topic | Budbreaker budburst hydrogen cyanamide pruning viticulture |
| url | https://oaj.fupress.net/index.php/ahs/article/view/16128 |
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