Abstract
To accelerate and even the germination of tea seed, a few experiments were carried out on the germination test and some pre-treatments using the Japan varieties, the Assam hybrids and the Assam varieties.From the habitual outdoor germination test in 1961, it was observed that the germination percentage of the crossed seeds obtained from each cross combination varied widely from 0 to 93.6%. The period when over 90% germination of all the germinated seeds was accomplished was shown extending over 50 days (Fig. 1).The uneven germination was also observed concerning each cross combination.It was found with all varieties that the removal of the seed shell or damaging it accelerated the germination of embryo. The germination percentage of the intact seeds varied from high to low with the varieties used. The removal of the seed shell, however, greatly speeded up the germination and nearly 100% germination was given 20 days after treatment in almost all varieties (Table 1, Figs. 2 and 3). Cracking and splitting the seed shell also had somewhat accelerating effect on the germination.Cracking or removal of the shell of fallen seeds and subsequent soaking them in water for about one day, however, did not show so good germination as intact seeds did (Table 2). Storages of seeds for 20 days at 20°C, 7°C and room temperature showed the same effect on the germination and the later growth of seedlings (Table 3 and Fig. 3).Being stored in polyethylene bag at nearly 20°C, the seed shell began to split about 10 days after storage. These split seeds were transferred from 20°C to 6°C storage and stopped growing for a time. After all seeds splitted they were sown in germinating beds, and then they showed rapid elongation of root and even growth (Table 4 and Photograph). From the above results, it was concluded that this treatment was the most effective in the acceleration and evenness of the tea seed germination.
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Claims 15
Claim · model-written summary
Germination percentage of crossed tea seeds varied from 0 to 93.6%.
Verbatim
e0“the germination percentage of the crossed seeds obtained from each cross combination varied widely from 0 to 93.6%.”
t0“Tea”
Claim · model-written summary
Over 90% of germination took more than 50 days.
Verbatim
e0“The period when over 90% germination of all the germinated seeds was accomplished was shown extending over 50 days”
t0“Tea”
Claim · model-written summary
Germination was uneven across cross combinations.
Verbatim
e0“The uneven germination was also observed concerning each cross combination.”
t0“Tea”
Claim · model-written summary
Removing the seed shell accelerated embryo germination in all varieties.
Not reportedComparator
Verbatim
e0“It was found with all varieties that the removal of the seed shell or damaging it accelerated the germination of embryo.”
t0“Tea”
Claim · model-written summary
Damaging the seed shell accelerated embryo germination in all varieties.
Not reportedComparator
Verbatim
e0“It was found with all varieties that the removal of the seed shell or damaging it accelerated the germination of embryo.”
t0“Tea”
Claim · model-written summary
Intact seed germination percentage varied among varieties.
Verbatim
e0“The germination percentage of the intact seeds varied from high to low with the varieties used.”
t0“Tea”
Claim · model-written summary
Removing the shell greatly accelerated germination, with nearly 100% at 20 days in almost all varieties.
- Taxon
- Teat0
- Treatment
- removal of the seed shelle0
- Outcome
- germinatione0
- Direction
- speeded upe0
- Value
- nearly 100%e0
- Qualifier
- 20 days after treatment in almost all varietiese0
Not reportedComparator
Verbatim
e0“The removal of the seed shell, however, greatly speeded up the germination and nearly 100% germination was given 20 days after treatment in almost all varieties”
t0“Tea”
Claim · model-written summary
Cracking the seed shell somewhat accelerated germination.
Not reportedComparator
Verbatim
e0“Cracking and splitting the seed shell also had somewhat accelerating effect on the germination.”
t0“Tea”
Claim · model-written summary
Splitting the seed shell somewhat accelerated germination.
Not reportedComparator
Verbatim
e0“Cracking and splitting the seed shell also had somewhat accelerating effect on the germination.”
t0“Tea”
Claim · model-written summary
Cracking the shell of fallen seeds followed by soaking for about one day gave poorer germination than intact seeds.
Verbatim
e0“Cracking or removal of the shell of fallen seeds and subsequent soaking them in water for about one day, however, did not show so good germination as intact seeds did”
t0“Tea”
Claim · model-written summary
Storage for 20 days at 20°C, 7°C or room temperature had the same effect on germination and later seedling growth.
- Taxon
- Teat0
- Treatment
- Storages of seeds for 20 days at 20°C, 7°C and room temperaturee0
- Outcome
- germination and the later growth of seedlingse0
- Direction
- same effecte0
Not reportedComparator
Verbatim
e0“Storages of seeds for 20 days at 20°C, 7°C and room temperature showed the same effect on the germination and the later growth of seedlings”
t0“Tea”
Claim · model-written summary
Tea seed shells began splitting after about 10 days of storage in polyethylene bags near 20°C.
Verbatim
e0“Being stored in polyethylene bag at nearly 20°C, the seed shell began to split about 10 days after storage.”
t0“Tea”
Claim · model-written summary
Moving split seeds from 20°C to 6°C temporarily stopped growth.
- Taxon
- Teat0
- Treatment
- transferred from 20°C to 6°C storagee0
- Outcome
- growinge0
- Direction
- stoppede0
- Qualifier
- for a timee0
Not reportedComparator
Verbatim
e0“These split seeds were transferred from 20°C to 6°C storage and stopped growing for a time.”
t0“Tea”
Claim · model-written summary
Sowing the split seeds produced rapid root elongation and even growth.
- Taxon
- Teat0
- Treatment
- sown in germinating bedse0
- Outcome
- elongation of root and even growthe0
- Direction
- rapide0
Not reportedComparator
Verbatim
e0“After all seeds splitted they were sown in germinating beds, and then they showed rapid elongation of root and even growth”
t0“Tea”
Claim · model-written summary
The authors judged the staged storage treatment most effective for accelerating and evening tea germination.
Verbatim
e0“From the above results, it was concluded that this treatment was the most effective in the acceleration and evenness of the tea seed germination.”
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See all 14 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.