Biochemical Assimilates Accumulation and Remobilization at Reproduction Stage Drought Stress in Upland Rice (Oryza sativa L.)
Loading...
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Environment & Ecology
Abstract
A very week correlation obtained between
leaf rolling score and yield, shoot soluble sugar and
RWC, respectively. Leaf depth ; score in well correlated
with leaf soluble sugar. Plant height is often
considered as a factor in plant response to drought
stress. Rice accumulates significant amount of carbohydrate
before and wide variability exists among
genotypes. Improved variety like NDR-97, Vandana
and DH line have higher content of total soluble
sugar at flowering than do low yielding traditional
cultivar like Azucena and Saita correlation study revealed
strong positive relationship between grain
yield in stress and shoot soluble sugar. Assimilate
accumulated prior to flowering are of paramount importance
when plant experience drought at later stage.
We hypothesized that grain yields of rice crops
drought stressed at flowering, directly related to reserve
food materials and the ability of the plant to
translocate those assimilate.
Description
Article
Keywords
null