Abstract
Critical boron concentration and response of hydrolytic enzymes in maize (Zea mays L. var. 32-A09) plants was assessed under controlled conditions. Maize (Zea mays var. 32-A09) plants were grown in sand culture under glass house condition till maturity with application of boron ranging from 0.033 to 6.6 mg L−1. Plants of maize had higher requirement of boron and optimum yield was obtained in plants getting 0.66 mg L−1 of boron application and levels below and above this exhibited deficiency and excess symptoms of boron, respectively. The critical boron concentration for optimum vegetative yield was found to be 21.5 to 40 ig boron g−1 dry weight. Plants showed growth retardation and characteristic visible symptoms, decreased dry matter yield and reproductive yield under deficiency and excess of boron. Activities of hydrolytic enzymes– acid phosphatase (APase) and ribonuclease (RNase) were increased in boron deficient and excess plants.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Optimal maize yield occurred at 0.66 mg L−1 boron.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimum yield was obtained in plants getting 0.66 mg L−1 of boron application”
t0“Maize”
Claim · model-written summary
Boron below optimum produced deficiency symptoms.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“levels below and above this exhibited deficiency and excess symptoms of boron, respectively”
t0“Maize”
Claim · model-written summary
Boron above optimum produced excess symptoms.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“levels below and above this exhibited deficiency and excess symptoms of boron, respectively”
t0“Maize”
Claim · model-written summary
Critical boron concentration for optimum vegetative yield was 21.5 to 40 ig boron g−1 dry weight.
- Outcome
- critical boron concentration for optimum vegetative yielde0
- Value
- 21.5 to 40 ig boron g−1 dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The critical boron concentration for optimum vegetative yield was found to be 21.5 to 40 ig boron g−1 dry weight”
t0“Maize”
Claim · model-written summary
Deficient and excessive boron retarded growth and caused visible symptoms.
- Treatment
- deficiency and excess of borone0
- Outcome
- growth retardation and characteristic visible symptomse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants showed growth retardation and characteristic visible symptoms, decreased dry matter yield and reproductive yield under deficiency and excess of boron”
t0“Maize”
Claim · model-written summary
Deficient and excessive boron decreased dry matter yield and reproductive yield.
- Treatment
- deficiency and excess of borone0
- Outcome
- dry matter yield and reproductive yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased dry matter yield and reproductive yield under deficiency and excess of boron”
t0“Maize”
Claim · model-written summary
Acid phosphatase activity increased under boron deficiency and excess.
- Treatment
- boron deficient and excesse0
- Gene
- acid phosphatase (APase)e0
- Outcome
- acid phosphatase (APase)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of hydrolytic enzymes– acid phosphatase (APase) and ribonuclease (RNase) were increased in boron deficient and excess plants”
t0“Maize”
Claim · model-written summary
Ribonuclease activity increased under boron deficiency and excess.
- Treatment
- boron deficient and excesse0
- Gene
- ribonuclease (RNase)e0
- Outcome
- ribonuclease (RNase)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of hydrolytic enzymes– acid phosphatase (APase) and ribonuclease (RNase) were increased in boron deficient and excess plants”
t0“Maize”
The same questions in other papers
boron atom · yield · Zea mays (maize)Results differ
71 papers in the same direction as this paper · 11 in the opposite direction
- negative
- no effect
- negative
79 papers more in this group
See all 83 papers →boron atom · disease · Zea mays (maize)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- positive
- positive
1 paper more in this group
See all 5 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.