Abstract
Abstract Two experiments were conducted to determine some of the problems associated with study of multiple nutrient deficiencies in plants. In the first experiment in which bush beans (Phaseolus vulgaris L. cv. Improved Tendergreen) were grown in solution with no added Fe, no added Mn, or with both omitted simultaneously, vegetative yields of trifoliate leaves were depressed by 25% for no Fe, 77% for no Mn, but only 58% for both no Fe and Mn. There was a clear interaction then, that resulted in better growth for no Mn and no Fe than for no Mn with Fe. In the second experiment in which bush beans were grown in solution culture with low P and K (10‐5M each singly and together), the multiple deficiency resulted in trifoliate leaf yields about the same of those of the individual nutrients alone indicative of the operation of the law of the minimum.
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Claims 5
Claim · model-written summary
Omitting Fe depressed trifoliate leaf vegetative yield by 25%.
- Taxon
- plantsViridiplantaet0
- Treatment
- no Fee0
- Outcome
- vegetative yields of trifoliate leavese0
- Direction
- depressede0
- Value
- 25%e0
Not reportedComparator
Verbatim
e0“vegetative yields of trifoliate leaves were depressed by 25% for no Fe”
t0“plants”
Claim · model-written summary
Omitting Mn depressed trifoliate leaf vegetative yield by 77%.
- Taxon
- plantsViridiplantaet0
- Treatment
- no Mne0
- Outcome
- vegetative yields of trifoliate leavese0
- Direction
- depressede0
- Value
- 77%e0
Not reportedComparator
Verbatim
e0“vegetative yields of trifoliate leaves were depressed by 25% for no Fe, 77% for no Mn”
t0“plants”
Claim · model-written summary
Omitting both Fe and Mn depressed trifoliate leaf vegetative yield by 58%.
- Taxon
- plantsViridiplantaet0
- Treatment
- both no Fe and Mne0
- Outcome
- vegetative yields of trifoliate leavese0
- Direction
- depressede0
- Value
- 58%e0
Not reportedComparator
Verbatim
e0“vegetative yields of trifoliate leaves were depressed by 25% for no Fe, 77% for no Mn, but only 58% for both no Fe and Mn”
t0“plants”
Claim · model-written summary
Combined Fe and Mn omission gave better growth than Mn omission with Fe.
Verbatim
e0“better growth for no Mn and no Fe than for no Mn with Fe”
t0“plants”
Claim · model-written summary
Combined low P and K yielded about the same trifoliate leaves as either individual deficiency.
Verbatim
e0“the multiple deficiency resulted in trifoliate leaf yields about the same of those of the individual nutrients alone”
t0“plants”
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