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13 results on '"Wiguna, Gungun"'

4. Seed quality, growth and yield of several shallot varieties (Allium cepa var aggregatum L.) under different storage conditions.

Author

Sinaga, Rismawita, Rosliani, Rini, Waluyo, Nurmalita, Handayani, Tri, Rahayu, Astiti, Wiguna, Gungun, and Kirana, Rinda

Subjects
SHALLOT, SEED quality, SEED storage, ONIONS, STORAGE
Abstract

Seed storage conditions and the availability of shallot seeds are critical factors in the development of shallots. The main objective of this study was to determine the ideal storage conditions for several varieties of shallot (Allium cepa var aggregatum L.) on the physical quality of seeds, growth and yield of shallots. This research was conducted at the Experimental Garden, Indonesian Vegetables Research Institute, West Java. This research was conducted using a split-plot design with two replications. The main plot was a storage room which consists of three storage conditions, namely the growth chamber (temperature 1-2°C), shallot storage room (temperature 29-30°C), and room temperature (22.5°C). The subplot consists of seven shallot varieties, namely Bima Brebes, Mentes, Trisula, Pancasona, Pikatan, Kuning and Katumi. Firstly, the seed is stored in the storage area and afterwards is planted in the field. Observation parameters included seed quality after storage, growth components and yield components. The results showed the interaction effect of seed storage conditions and cultivars on the number of seeds that grew (%) on day 5 DAP and the dry weight of bulbs per hectare (tons). Kuning cultivar stored in the growth chamber (1-2°C) produced the highest dry weight (9.08 tons) compared to all combinations of storage space and varieties unless stored in shallot storage (29-30°C). [ABSTRACT FROM AUTHOR]

Published
2024
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13. Impacts of Sletr1-1and Sletr1-2mutations on the hybrid seed quality of tomatoes

Author

Mubarok, Syariful, Ezura, Hiroshi, Anas, Kusumiyati, Rostini, Neni, Suminar, Erni, and Wiguna, Gungun

Abstract

Shelf life is an important breeding trait in tomato, especially for the tomato production in subtropical and tropical regions. Previously we have isolated and characterized ethylene receptor mutants, Sletr1-1and Sletr1-2from mutant population based on Micro-Tom cultivar. Sletr1-1showed insensitivity to ethylene while Sletr1-2showed reduced sensitivity to ethylene. We also have demonstrated that the traits are useful for extending fruit shelf life of the hybrid tomato cultivars. For commercializing the hybrid cultivars, the seed quality is another important trait. In this study, we evaluated the effects of the Sletr1-1and Sletr1-2mutations on the seed quality characteristics of F1hybrid lines generated by crossing Sletr1-1and Sletr1-2with three commercial tomato cultivars, Intan, Mutiara and Ratna. Sletr1-1mutation conferred insensitivity to ethylene in the F1hybrid seedlings, resulting in negative effects including reduced germination rate, vigor index and emergence speed index. Interestingly Sletr1-2mutation had almost no effect on the seed quality characteristics of the F1hybrid lines, suggesting that Sletr1-2was suitable for producing high quality of hybrid seeds.

Published
2019
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