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3 results on '"Chen, Yu-Lin"'

1. Curd Initiation and Transformation in Tropical Cauliflower Cultivars under Different Temperature Treatments.

Author

Chen-Yu Lin, Kan-Shu Chen, Hsuan-Ping Chen, Hsiang-I Lee, and Ching-Hsiang Hsieh

Subjects
*MATERIALS testing, *CAULIFLOWER, *CULTIVARS, *HIGH temperatures, *TEMPERATURE, *COLE crops
Abstract

This study investigated the effects of different temperature treatments (18, 24, and 30 8C) on apex development in tropical cauliflower cultivars of varying maturity types. Two commercial cultivars, H-37 (early maturity) and H-80 (mid-late maturity), were used as the testing materials. 'H-37' reached the curd-initiation phase earlier than 'H-80' and showed superior growth during the curd's initial development phase under all temperature treatments. Analysis of variance revealed significant effects regarding main temperature and cultivar as well as their interaction. 'H-37' at a temperature of 18 8C demonstrated the optimal transformation of apex development from the vegetative to reproductive stage. A temperature of 24 8C promoted the apex development of 'H-37' at the curd initial development phase. Gene expression analysis results indicated that the BoFLC2 expression of 'H-37' was significantly down-regulated than that of 'H-80' after curd initiation and advanced growth. A temperature 30 8C accelerated the ending of juvenile stage and forward to curd initiation in 'H-80' and declined with temperature decreased. Moreover, expression of the BoFLC2 transcript level of both tropical cauliflower cultivars nearly disappeared at the high temperature of 30 8C following curd initiation, suggesting that heat stress hinders curd formation. The results of this study also indicate that the number of leaves required to induce curd initiation is less than nine in tropical cauliflower at temperatures of 18 to 30 8C. In conclusion, under nonvernalized high temperatures, different cultivars of tropical cauliflower can initiate curd development but with a different pattern from those cultivars grown in temperate zones. This information may provide novel insights for cauliflower farmers or breeders in tropical regions. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Copper Hydroxide Improved Root Quality of Palimara Alstonia in Plastic Containers

Author

Chen-Yu Lin and Yu-Sen Chang

Subjects
biology, Chemistry, Copper toxicity, Alstonia scholaris, Root system, Horticulture, medicine.disease, biology.organism_classification, Agronomy, Dry weight, Shoot, Ornamental plant, medicine, Phytotoxicity, Alstonia
Abstract

The effect of copper hydroxide [Cu(OH)2] applied to interior container surfaces on shoot and root responses was evaluated on palimara alstonia (Alstonia scholaris). The seedlings grown in Cu(OH)2-treated containers had greater plant height than those in untreated containers, and had no observable copper toxicity symptoms. Cu(OH)2-treated containers effectively reduced root circling on the surface of rootballs compared with untreated containers. The Cu(OH)2 treatment significantly increased the dry weight of fine roots (those with a diameter 0-2 mm) and small roots (>2-5 mm) but did not influence the dry weight of medium roots (>5-10 mm), large roots (>10 mm), or total roots. The Cu(OH)2 treatment also significantly increased total root length and surface, which was due principally to the increasing length and surface of the fine roots. The results indicated that the Cu(OH)2 treatment, which can improve the root quality of palimara alstonia seedlings and thereby increase the root-length-to-leaf-area ratio and the root-surface-to-leaf-area ratio, has the potential to produce high-quality plants.

Published
2006

3. Copper Hydroxide Improved Root Quality of Palimara Alstonia in Plastic Containers.

Author

Yu-Sen Chang and Chen Yu Lin

Subjects
SEEDLINGS, PLANT containers, PLANT growth, PLANT roots, PLANTS
Abstract

SUMMARY. The effect of copper hydroxide [Cu(OH)2] applied to interior container surfaces on shoot and root responses was evaluated on palimara alstonia (Alstonia scholaris). The seedlings grown in Cu(OH)2-treated containers had greater plant height than those in untreated containers, and had no observable copper toxicity symptoms. Cu(OH)2-treated containers effectively reduced root circling on the surface of rootballs compared with untreated containers. The Cu(OH)2 treatment significantly increased the dry weight of fine roots (those with a diameter 0-2 mm) and small roots (>2-5 mm) but did not influence the dry weight of medium roots (>5-10 mm), large roots (>10 mm), or total roots. The Cu(OH)2 treatment also significantly increased total root length and surface, which was due principally to the increasing length and surface of the fine roots. The results indicated that the Cu(OH)2 treatment, which can improve the root quality of palimara alstonia seedlings and thereby increase the root-length-to-leaf-area ratio and the root-surface-to-leaf-area ratio, has the potential to produce high-quality plants. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
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