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Effect of different temperature regimes on morphological and flowering characteristics in gladiolus (Gladiolus (Tourn) L.)

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Title Effect of different temperature regimes on morphological and flowering characteristics in gladiolus (Gladiolus (Tourn) L.)
Not Available
 
Creator Ganesh B. Kadam • Krishan Pal Singh • M. P. Singh
 
Subject Corm, Gladiolus, Phytotron, Spike, Temperature
 
Description Not Available
Effect of different growth temperature regimes
was studied on morphological and flowering characters of
two gladiolus cultivars viz. Snow Princess and American
Beauty. Both the cultivars were raised in Phytotron using
corm size of 3.5–4.0 cm in diameter. Temperatures treatments
were maintained 20/18, 26/22 or 30/26 C (Day/
Night) with 14 h light and 60–65 % relative humidity in
the growth chambers. Days required for corm sprouting
decreased as the temperature levels increased. 30/26 C
temperature was found with lowest days for corm sprouting.
Sprouting percentage of corms was 100 % under all
the treatments in both the cultivars. There was non-significant
difference in leaf number and number of florets per
spike under all the temperature. Number of florets was
maximum at 20/18 and 26/22 C temperatures and was nil
at 30/26 C. The taller spike and rachis length was found
under treatment T2 (26/22 C) in cultivar American
Beauty. The duration of flowering reduced with the temperature
increase. Maximum duration of flowering on spike
(5.67 day) was found in control treatment (20/18 C). With
few exceptions, adverse effect of increase in temperature
was substantial. However, the effect of highest temperature
of 30/26 C was more adverse and significant for various
vegetative and reproductive growth parameters in both the
cultivars. Increase in temperature concomitantly decreased
flower initiation, hastened sprouting of corms and
increased plant height.
Not Available
 
Date 2020-03-17T12:44:51Z
2020-03-17T12:44:51Z
2013-04-19
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33935
 
Language English
 
Relation Not Available;
 
Publisher Not Available