Abstract
Objectives of this work were to determine (a) effects of regulator‐promoted delay of senescence on seed yield of flax ( Linum usitatissimum L.), soybean ( Glycine max (L.) Merrill), wheat ( Triticum aestivum (L.) em Thell), and oats ( Arena sativa L.), and (b) morphological ponents of any such yield response. For flax, delay of leaf yellowing 40 to 60 days after full bloom was negatively correlated with yield for regulator applications made at vegetative, bud, and bloom stages. Postbloom applications of TIBA (9,3,5‐triiodobenzoic acid) or SD‐8339 (N‐(phenylmethyl‐9‐(tetrahydro‐9/‐/‐ pyran‐9‐yl)‐9 H ‐purin‐6‐amine) delayed canopy yellowing under field conditions without affecting yield. The morphactins chlorflurenol (methyl 2‐chloro‐9‐hydroxyfluorene‐9‐carboxylate) and dichlorflurenol (methyl 2,7‐dichloro‐9‐hydroxyfluorene‐9‐carboxylate) applied postbloom at rates of 95 and 100 g/ha, respectively, consistently delayed senescence of flax. Chlorflurenol significantly enhanced yield in two of six trials; dichlorflurenol increased yield in one of five trials. In spite of morphactin effects prolonging leaf and chlorophyll retention, enhancing shoot growth, and renewing flowering and fruiting, yield effectiveness was sometimes lowered by reduction in size of primary seeds, pre‐harvest loss of primary fruits, and low seed set for secondary fruits. Yield enhancement by chlorflurenol was increased by application of a fungicide. Senescence delay in soybean caused by chlorflurenol, dichlorflurenol, or BA (6‐benzylamino)purine) did increase yield. Chlorflurenol treatment (500 or 1,000 g/ha) after anthesis increased seed yield of wheat, and dichlorflurenol applied in boot stage at 1,000 g/ha increased yield of oats; rate of senescence was unaltered in both crops.
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Claims 20
Claim · model-written summary
Delayed flax leaf yellowing was negatively correlated with yield for regulator applications at vegetative, bud, and bloom stages.
- Taxon
- flax
Linum usitatissimume0 - Organ / stage
- leafe0
- Treatment
- regulator applicationse0
- Outcome
- yielde0
- Direction
- negatively correlatede0
- Qualifier
- 40 to 60 days after full bloome0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For flax, delay of leaf yellowing 40 to 60 days after full bloom was negatively correlated with yield for regulator applications made at vegetative, bud, and bloom stages.”
Claim · model-written summary
Postbloom TIBA delayed flax canopy yellowing without affecting yield.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- TIBAe0
- Outcome
- canopy yellowinge0
- Direction
- delayede0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postbloom applications of TIBA (9,3,5‐triiodobenzoic acid) or SD‐8339 (N‐(phenylmethyl‐9‐(tetrahydro‐9/‐/‐ pyran‐9‐yl)‐9 H ‐purin‐6‐amine) delayed canopy yellowing under field conditions without affecting yield.”
t0“of Flax”
Claim · model-written summary
Postbloom SD‐8339 delayed flax canopy yellowing without affecting yield.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- SD‐8339e0
- Outcome
- canopy yellowinge0
- Direction
- delayede0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postbloom applications of TIBA (9,3,5‐triiodobenzoic acid) or SD‐8339 (N‐(phenylmethyl‐9‐(tetrahydro‐9/‐/‐ pyran‐9‐yl)‐9 H ‐purin‐6‐amine) delayed canopy yellowing under field conditions without affecting yield.”
t0“of Flax”
Claim · model-written summary
Postbloom TIBA did not affect flax yield.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- TIBAe0
- Outcome
- yielde0
- Direction
- without affectinge0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postbloom applications of TIBA (9,3,5‐triiodobenzoic acid) or SD‐8339 (N‐(phenylmethyl‐9‐(tetrahydro‐9/‐/‐ pyran‐9‐yl)‐9 H ‐purin‐6‐amine) delayed canopy yellowing under field conditions without affecting yield.”
t0“of Flax”
Claim · model-written summary
Postbloom SD‐8339 did not affect flax yield.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- SD‐8339e0
- Outcome
- yielde0
- Direction
- without affectinge0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postbloom applications of TIBA (9,3,5‐triiodobenzoic acid) or SD‐8339 (N‐(phenylmethyl‐9‐(tetrahydro‐9/‐/‐ pyran‐9‐yl)‐9 H ‐purin‐6‐amine) delayed canopy yellowing under field conditions without affecting yield.”
t0“of Flax”
Claim · model-written summary
Postbloom chlorflurenol consistently delayed flax senescence.
- Taxon
- flaxLinum usitatissimume0
- Organ / stage
- postbloome0
- Treatment
- chlorflurenole0
- Outcome
- senescencee0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The morphactins chlorflurenol (methyl 2‐chloro‐9‐hydroxyfluorene‐9‐carboxylate) and dichlorflurenol (methyl 2,7‐dichloro‐9‐hydroxyfluorene‐9‐carboxylate) applied postbloom at rates of 95 and 100 g/ha, respectively, consistently delayed senescence of flax.”
Claim · model-written summary
Postbloom dichlorflurenol consistently delayed flax senescence.
- Taxon
- flaxLinum usitatissimume0
- Organ / stage
- postbloome0
- Treatment
- dichlorflurenole0
- Outcome
- senescencee0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The morphactins chlorflurenol (methyl 2‐chloro‐9‐hydroxyfluorene‐9‐carboxylate) and dichlorflurenol (methyl 2,7‐dichloro‐9‐hydroxyfluorene‐9‐carboxylate) applied postbloom at rates of 95 and 100 g/ha, respectively, consistently delayed senescence of flax.”
Claim · model-written summary
Chlorflurenol significantly increased flax yield in two of six trials.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- Chlorflurenole0
- Outcome
- yielde0
- Direction
- enhancede0
- Value
- two of six trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol significantly enhanced yield in two of six trials; dichlorflurenol increased yield in one of five trials.”
t0“of Flax”
Claim · model-written summary
Dichlorflurenol increased flax yield in one of five trials.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- dichlorflurenole0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- one of five trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol significantly enhanced yield in two of six trials; dichlorflurenol increased yield in one of five trials.”
t0“of Flax”
Claim · model-written summary
Morphactins prolonged flax leaf and chlorophyll retention and enhanced shoot growth.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- morphactine0
- Outcome
- leaf and chlorophyll retention, enhancing shoot growthe0
- Direction
- prolonginge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In spite of morphactin effects prolonging leaf and chlorophyll retention, enhancing shoot growth, and renewing flowering and fruiting, yield effectiveness was sometimes lowered by reduction in size of primary seeds, pre‐harvest loss of primary fruits, and low seed set for secondary fruits.”
t0“of Flax”
Claim · model-written summary
Morphactins renewed flax flowering and fruiting.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- morphactine0
- Outcome
- flowering and fruitinge0
- Direction
- renewinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“morphactin effects prolonging leaf and chlorophyll retention, enhancing shoot growth, and renewing flowering and fruiting”
t0“of Flax”
Claim · model-written summary
Reduced primary seed size, primary fruit loss, and low secondary fruit set sometimes lowered flax yield effectiveness.
- Taxon
- FlaxLinum usitatissimumt0
- Organ / stage
- primary seedse0
- Outcome
- yield effectivenesse0
- Direction
- lowerede0
- Qualifier
- pre‐harvest loss of primary fruits, and low seed set for secondary fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield effectiveness was sometimes lowered by reduction in size of primary seeds, pre‐harvest loss of primary fruits, and low seed set for secondary fruits.”
t0“of Flax”
Claim · model-written summary
Fungicide application increased yield enhancement from chlorflurenol in flax.
- Taxon
- FlaxLinum usitatissimumt0
- Treatment
- application of a fungicidee0
- Outcome
- Yield enhancemente0
- Direction
- increasede0
- Comparator
- chlorflurenole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield enhancement by chlorflurenol was increased by application of a fungicide.”
t0“of Flax”
Claim · model-written summary
Chlorflurenol-induced soybean senescence delay increased yield.
- Taxon
- soybean
Glycine maxe0 - Treatment
- chlorflurenole0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence delay in soybean caused by chlorflurenol, dichlorflurenol, or BA (6‐benzylamino)purine) did increase yield.”
Claim · model-written summary
Dichlorflurenol-induced soybean senescence delay increased yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- dichlorflurenole0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence delay in soybean caused by chlorflurenol, dichlorflurenol, or BA (6‐benzylamino)purine) did increase yield.”
Claim · model-written summary
BA-induced soybean senescence delay increased yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- BAe0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence delay in soybean caused by chlorflurenol, dichlorflurenol, or BA (6‐benzylamino)purine) did increase yield.”
Claim · model-written summary
Postanthesis chlorflurenol increased wheat seed yield.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- after anthesise0
- Treatment
- Chlorflurenol treatment (500 or 1,000 g/ha)e0
- Outcome
- seed yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol treatment (500 or 1,000 g/ha) after anthesis increased seed yield of wheat, and dichlorflurenol applied in boot stage at 1,000 g/ha increased yield of oats; rate of senescence was unaltered in both crops.”
Claim · model-written summary
Boot-stage dichlorflurenol increased oat yield.
- Taxon
- oats
Avena sativae0 - Treatment
- dichlorflurenol applied in boot stage at 1,000 g/hae0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol treatment (500 or 1,000 g/ha) after anthesis increased seed yield of wheat, and dichlorflurenol applied in boot stage at 1,000 g/ha increased yield of oats; rate of senescence was unaltered in both crops.”
Claim · model-written summary
Wheat senescence rate was unchanged with chlorflurenol treatment.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Chlorflurenol treatment (500 or 1,000 g/ha)e0
- Outcome
- rate of senescencee0
- Direction
- unalterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol treatment (500 or 1,000 g/ha) after anthesis increased seed yield of wheat, and dichlorflurenol applied in boot stage at 1,000 g/ha increased yield of oats; rate of senescence was unaltered in both crops.”
Claim · model-written summary
Oat senescence rate was unchanged with dichlorflurenol treatment.
- Taxon
- oatsAvena sativae0
- Treatment
- dichlorflurenol applied in boot stage at 1,000 g/hae0
- Outcome
- rate of senescencee0
- Direction
- unalterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorflurenol treatment (500 or 1,000 g/ha) after anthesis increased seed yield of wheat, and dichlorflurenol applied in boot stage at 1,000 g/ha increased yield of oats; rate of senescence was unaltered in both crops.”
The same questions in other papers
2,3,5-triiodobenzoic acid · yield · Linum usitatissimum (flax)Results differ
1 in the opposite direction
- positive
N-benzyladenine · yield · Glycine max (soybean)Results differ
16 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
15 papers more in this group
See all 19 papers →fungicide · yield · Linum usitatissimum (flax)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.