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Yield improvement through female homosexual hybrids and sex genetics of sweet gourd (Momordica cochinchinensis Spreng.)

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Title Yield improvement through female homosexual hybrids and sex genetics of sweet gourd (Momordica cochinchinensis Spreng.)
 
Creator S. K. Sanwal, Marcin Kozak, Sanjeev Kumar, B. Singh & B. C. Deka
 
Subject Growth regulators, Female x female hybrids, Dioecious plants
 
Description The present research aimed to evaluate the
effect of silver nitrate (AgNO3) on sex modification in
sweet gourd (Momordica cochinchinensis Spreng.), and to
explore the possibility of sexual crossing between two
genetically female plants. Spray applications of AgNO3 on
30 days’ old female plants induced hermaphrodite flowers.
Male plants were insensitive to the AgNO3 sprays. Application
of 500 mg/l AgNO3 on female plants produced the
maximum proportion of induced hermaphrodite flowers.
Hermaphrodite flowers appeared 17–21 days after AgNO3
spray and continued up to 8–17 days, depending upon the
concentration of AgNO3. Pollen grain viability of induced
hermaphrodite flowers (93.5%) was similar to pollen grain
viability of normal male (95.0%) flowers. Because of
higher fruit weight, progenies from female homosexual
cross recorded higher yield. The hybrids from such crosses
produced only female plants while the hybrids between
female and normal male segregated into male and female
in an equal proportion, indicating that sex in sweet gourd
is controlled by a single factor, male being heterozygous
and female being homozygous recessive. Through this
technique, elite characters of female genotypes could be
combined into a single plant.
 
Date 2017-06-29T10:47:16Z
2017-06-29T10:47:16Z
2011-01-18
 
Type Research Paper
 
Identifier Sanwal, S. K., Kozak, M., Kumar, S., Singh, B., & Deka, B. C. (2011). Yield improvement through female homosexual hybrids and sex genetics of sweet gourd (Momordica cochinchinensis Spreng.). Acta Physiologiae Plantarum, 33(5): 1991-1996.
http://krishi.icar.gov.in/jspui/handle/123456789/4511
 
Language English
 
Publisher Springer