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EFFECT OF COMBINED VARiATION IN LIGHT IRRADIANCE AND POTASSIUM ON RICE (ORYZA SATIVA L.)

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Title EFFECT OF COMBINED VARiATION IN LIGHT IRRADIANCE AND POTASSIUM ON RICE (ORYZA SATIVA L.)
Not Available
 
Creator V.P. SINGH, S.R. VOLETlI AND AJAY ARORA
 
Subject Light im.diance, potassium. rice
 
Description Not Available
The influence of varied potassium nutrition (20 and 40 ppm) at two levels of light
irradiance on rice tOryza SIlJivQ (L) indicated that low Bght irradiancc operative from
40 days after planting (DAP) to harvest reduced all physiologrcal parameters studied, at. flowering and harvest siage though leaf area. specific leaf weight (SLW). chloro-
phyll and sterility increased at both potassium levels. During the transition from veg- etative to the reproductive phase the 40 ppm potassium supply could partially compen-
sate. the photosynthetic me (Pn), stomatal conductance (C)• soluble protein and chlo-
rophyll. At harvest. boweYct. the positive effect of K became ~er and there was no
increase in dry maner and yield but under normal light irradiance elevated K increased
the total dry mauer and yidd.. Thus, potassium raised the photosynthetic rate and veg-etative growth under low irradiance but this was not capable of promoting the filling of grains in inadequate illumination.
Not Available
 
Date 2023-02-27T05:30:23Z
2023-02-27T05:30:23Z
1998-10-01
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/76436
 
Language English
 
Relation Not Available;
 
Publisher Plant Physiol