Abstract
1. The rates of vegetative growth of the non-tuberous roots of sweet potatoes were tested according to various soil treatments in the later growth stage of sweet potatoes. Such test proved that no appreciably great effect was found in the prodution of dry matter (total dry weight), while a striking effect was found in the distribution of dry matter. 2. Namely, according to the increase of non- tuberous roots it showed increase in the weight of tops, while decrease in the weight of tuberous roots, thus the ratio of tuberous root weight to the total dry weight became lower (correlation coefficient : r=-0.891**). And a high positive correlation was also found between the ratio of tuberous root weight to non-tuberous root weight and the ratio of tuberous root weight to total dry weight (r=+0.952**). This fact made clear that for the purpose of keeping the ratio between tuberous root weight and total dry weight at the rate of 40 per cent or higher, the ratio between tuberous root weight and non-tuberous root weight should to be kept at the rate of 1O times or higher. 3. It was also found that high in ground temperattlre, much in soil moisture and low in the concentration of oxygen are soil conditions for acceleration of the growth of non-tuberous roots as well as of the excessive vegetable growth of sweet potatoes.
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Claims 10
Claim · model-written summary
Soil treatments had no appreciably great effect on total dry weight.
- Taxon
- sweet potatoes
_Flower.jpg?width=60)
Ipomoea batatase0 - Organ / stage
- later growth stagee0
- Treatment
- various soil treatmentse0
- Outcome
- prodution of dry matter (total dry weight)e0
- Direction
- no appreciably great effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“according to various soil treatments in the later growth stage of sweet potatoes. Such test proved that no appreciably great effect was found in the prodution of dry matter (total dry weight)”
Claim · model-written summary
Soil treatments had a striking effect on dry matter distribution.
- Taxon
- sweet potatoesIpomoea batatase0
- Treatment
- various soil treatmentse0
- Outcome
- distribution of dry mattere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“according to various soil treatments in the later growth stage of sweet potatoes. Such test proved that no appreciably great effect was found in the prodution of dry matter (total dry weight), while a striking effect was found in the distribution of dry matter”
Claim · model-written summary
Increasing non-tuberous roots was associated with increased top weight.
- Taxon
- sweet potatoesIpomoea batatast0
- Organ / stage
- non- tuberous rootse0
- Outcome
- weight of topse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“according to the increase of non- tuberous roots it showed increase in the weight of tops”
t0“sweet potatoes”
Claim · model-written summary
Increasing non-tuberous roots was associated with decreased tuberous root weight.
- Taxon
- sweet potatoesIpomoea batatast0
- Organ / stage
- non- tuberous rootse0
- Outcome
- weight of tuberous rootse0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“according to the increase of non- tuberous roots it showed increase in the weight of tops, while decrease in the weight of tuberous roots”
t0“sweet potatoes”
Claim · model-written summary
Increasing non-tuberous roots lowered the tuberous-root fraction of total dry weight, with r=-0.891**.
- Taxon
- sweet potatoesIpomoea batatast0
- Organ / stage
- non- tuberous rootse0
- Outcome
- ratio of tuberous root weight to the total dry weighte0
- Direction
- lowere0
- Value
- r=-0.891**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“according to the increase of non- tuberous roots it showed increase in the weight of tops, while decrease in the weight of tuberous roots, thus the ratio of tuberous root weight to the total dry weight became lower (correlation coefficient : r=-0.891**)”
t0“sweet potatoes”
Claim · model-written summary
The tuberous-to-non-tuberous root weight ratio correlated positively with tuberous-root share of dry weight.
- Taxon
- sweet potatoesIpomoea batatast0
- Outcome
- ratio of tuberous root weight to total dry weighte0
- Direction
- positivee0
- Value
- r=+0.952**e0
- Comparator
- ratio of tuberous root weight to non-tuberous root weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a high positive correlation was also found between the ratio of tuberous root weight to non-tuberous root weight and the ratio of tuberous root weight to total dry weight (r=+0.952**)”
t0“sweet potatoes”
Claim · model-written summary
Maintaining tuberous-root dry weight at 40 per cent or higher requires a tuberous-to-non-tuberous root weight ratio of 1O times or higher.
- Taxon
- sweet potatoesIpomoea batatast0
- Outcome
- ratio between tuberous root weight and non-tuberous root weight should to be kept at the rate of 1O times or highere0
- Value
- 1O timese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for the purpose of keeping the ratio between tuberous root weight and total dry weight at the rate of 40 per cent or higher, the ratio between tuberous root weight and non-tuberous root weight should to be kept at the rate of 1O times or higher”
t0“sweet potatoes”
Claim · model-written summary
High ground temperature accelerated non-tuberous root growth and excessive vegetative growth.
- Taxon
- sweet potatoesIpomoea batatase0
- Treatment
- high in ground temperattlree0
- Outcome
- growth of non-tuberous rootse0
- Direction
- acceleratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high in ground temperattlre, much in soil moisture and low in the concentration of oxygen are soil conditions for acceleration of the growth of non-tuberous roots as well as of the excessive vegetable growth of sweet potatoes”
Claim · model-written summary
High soil moisture accelerated non-tuberous root growth and excessive vegetative growth.
- Taxon
- sweet potatoesIpomoea batatase0
- Treatment
- much in soil moisturee0
- Outcome
- growth of non-tuberous rootse0
- Direction
- acceleratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high in ground temperattlre, much in soil moisture and low in the concentration of oxygen are soil conditions for acceleration of the growth of non-tuberous roots as well as of the excessive vegetable growth of sweet potatoes”
Claim · model-written summary
Low oxygen concentration accelerated non-tuberous root growth and excessive vegetative growth.
- Taxon
- sweet potatoesIpomoea batatase0
- Treatment
- low in the concentration of oxygene0
- Outcome
- growth of non-tuberous rootse0
- Direction
- acceleratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high in ground temperattlre, much in soil moisture and low in the concentration of oxygen are soil conditions for acceleration of the growth of non-tuberous roots as well as of the excessive vegetable growth of sweet potatoes”