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Article
Author(s)
Phan Thi Phuong Nhi, Tran Thi Huong Sen, Trinh Thi Sen and Tran Thi Hoang Đong
Full-Text PDF XML 1449 Views
DOI:10.17265/2161-6256/2017.10.001S
Affiliation(s)
Faculty of Agronomy, University of Agriculture and Forestry, Hue University, 102 Phung Hung Street, Hue 530000, Vietnam
ABSTRACT
The aim of the study was to
evaluate the drought tolerance, agro-morphological characteristics and yield of 10 rice varieties collected from different locations. In
experiment one, drought tolerance of rice varieties under artificial drought
condition in the greenhouse was assessed through root and leaf characteristics. In
experiment two, the growth and yield of rice varieties in the rainfed rice
field was estimated. The results showed that drought has affected the root
characteristics, leaf rolling and leaf drying of these varieties. In rainfed
rice field of Thua Thien Hue and Quang Nam province, summer-autumn 2016 and winter-spring 2016-2017 crop season, these rice varieties grew
and developed well. The growth time
was 90-119 d in summer-autumn crop season, while in winter-spring crop season
was 107-131 d. The yield of these rice
varieties ranged from 37.02 quintals/ha to 56.33 quintals/ha and from 42.33 quintals/ha
to 66.60 quintals/ha,
respectively. Some rice varieties with high yields in both two
crop seasons were OM4900, GSR38, IR93340 and OM7347. It
is sugessted to conduct production experiment on a large area in rainfed field
for these four varieties to evaluate
them objectively and early put them into structure of rice varieties in Central
Vietnam.
KEYWORDS
Central Vietnam, drought tolerance, growth, rice, variety, yield.
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