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- Title
RATOONING ABILITY OF DIVERSE SUGARCANE CULTIVARS UNDER NATURAL SHORT- AND LONG-TERM WATERLOGGED FIELD CONDITIONS.
- Authors
PALACHAI, C.; GONKHAMDEE, S.; SONGSRI, P.; JONGRUNGKLANG, N.
- Abstract
The productivity of sugarcane crops, especially that of ratoon cane, is seriously limited by flooding. The objective of this study was to evaluate the ratooning ability, yield, yield components, and sugar yield of sugarcanes cultivated under natural field conditions with short- and long-term waterlogging. The first ratoon field experiments were conducted separately under short- and long-term waterlogging conditions. Plant cane in these fields experienced corresponding flooding. Each trial was arranged in a randomized complete block design with four replications, and 12 diverse sugarcane cultivars were assigned as treatments. Germination percentage was recorded 1 month after the harvest. At the final harvest of ratoon cane, millable canes, stalk weight, stalk length, stalk diameter, sugar yield, and yield were determined, and ratooning ability was then calculated. Long-term flooding but not short-term waterlogging could disturb the germination percentage of ratoon cane. Good germination with appropriate yield components in ratoon contributed to high ratooning ability and yield potential under natural waterlogging. A positive correlation between millable cane and cane yield existed, and this trait could be used as the selection criterion for high-yielding cultivars under waterlogging conditions. Stalk length could also be used as a surrogate trait under short-term waterlogging conditions for ratoon cane.
- Subjects
SUGARCANE; CULTIVARS; SUGARCANE growing; BLOCK designs; GERMINATION; ABILITY
- Publication
SABRAO Journal of Breeding & Genetics, 2021, Vol 53, Issue 2, p172
- ISSN
1029-7073
- Publication type
Article