Abstract
Genetic improvement to produce seedless watermelon offers high quality fruits. This paper describes about problems related with tetraploid seed germination, various seed treatment to improve tetraploid seed germination and the morphological variations observed between the tetraploid and diploid seeds. Diploid watermelon seeds of three genetic backgrounds were treated with colchicine (0.2, 0.3 and 0.4%) and PEG (0.5%) as an adjuvent. Polyploid watermelon seeds have poor germination and low seedling vigor mainly due to thick seed coat and seed coat adherence to emerged cotyledons. In order to enhance the germination, the tetraploid seeds were subjected to five different seed treatments i.e; acid scarification, GA3 treatment, humidification, mechanical scarification and water soaking for 48hrs. Among the various treatments tested, maximum germination was recorded in the seeds subjected to water soaking for 48 hrs in all the three varieties. Tetraploids produce less number of seeds per fruit than those of diploids. Diploid seeds had complete filled cavity with embryo whereas tetraploids developed weak embryo with some empty cavity hence lower seed germination.
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Claims 5
Claim · model-written summary
Water soaking for 48 hours gave maximum germination of tetraploid watermelon seeds compared with acid scarification, GA3, humidification and mechanical scarification.
- Taxon
- Citrullus lanatus
Citrullus lanatust0 - Material
- three varietiese1
- Treatment
- water soaking for 48 hrse1
- Outcome
- maximum germinatione1
- Direction
- maximume1
- Comparator
- acid scarification, GA3 treatment, humidification, mechanical scarificatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Watermelon (Citrullus lanatus Thunb.)”
e1“Among the various treatments tested, maximum germination was recorded in the seeds subjected to water soaking for 48 hrs in all the three varieties”
e2“five different seed treatments i.e; acid scarification, GA3 treatment, humidification, mechanical scarification and water soaking for 48hrs”
Claim · model-written summary
Tetraploid watermelon produces fewer seeds per fruit than diploid watermelon.
- Taxon
- Citrullus lanatusCitrullus lanatust0
- Treatment
- Tetraploidse3
- Outcome
- number of seeds per fruite3
- Direction
- lesse3
- Comparator
- diploidse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Watermelon (Citrullus lanatus Thunb.)”
e3“Tetraploids produce less number of seeds per fruit than those of diploids”
Claim · model-written summary
Diploid watermelon seeds had a completely filled cavity with embryo.
- Taxon
- Citrullus lanatusCitrullus lanatust0
- Material
- Diploide4
- Outcome
- cavity with embryoe4
- Qualifier
- complete fillede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Watermelon (Citrullus lanatus Thunb.)”
e4“Diploid seeds had complete filled cavity with embryo whereas tetraploids developed weak embryo with some empty cavity hence lower seed germination”
Claim · model-written summary
Tetraploid watermelon seeds developed a weak embryo with some empty cavity.
- Taxon
- Citrullus lanatusCitrullus lanatust0
- Material
- tetraploidse4
- Outcome
- embryoe4
- Qualifier
- weak embryo with some empty cavitye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Watermelon (Citrullus lanatus Thunb.)”
e4“Diploid seeds had complete filled cavity with embryo whereas tetraploids developed weak embryo with some empty cavity hence lower seed germination”
Claim · model-written summary
The weak embryo with empty cavity in tetraploid seeds is asserted to explain their lower germination.
- Taxon
- Citrullus lanatusCitrullus lanatust0
- Outcome
- seed germinatione4
- Qualifier
- weak embryo with some empty cavitye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Watermelon (Citrullus lanatus Thunb.)”
e4“Diploid seeds had complete filled cavity with embryo whereas tetraploids developed weak embryo with some empty cavity hence lower seed germination”
The same questions in other papers
application · growth · Citrullus lanatus (watermelon)Positive and negative results
12 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
12 papers more in this group
See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.