Abstract
A field experiment was conducted on a B-deficient (HWS 0.1 mg kg−1) red sandy loam soil (Ultic Haplustalf) with cauliflower (cv. Pusa Snowball-I). Significant response to N levels (50–300 kg ha−1) in respect of curd weight, diameter and yield was obtained at 200 kg ha−1 over 50 kg ha−1. Any further increment in N adversely affected these parameters. The severity of stem hollow (on 1–5 scale) decreased and that of curd rot increased significantly at 300 kg ha−1 over 50 kg ha−1. Quantitatively, minimum curd rot (17–23%) and maximum stem hollow (85%) and stem rot (45%) was seen at N application rate of 150–200 and 300 kg ha−1, respectively. Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray) significantly increased curd size and yield and supressed Ca content of leaf tissue while that of B increased. The maximum reduction in the percentage of curd rot was at 250 kg ha−1 in ‘no-B’ control while at 0.0125 and 0.125 per cent boric acid concentrations, the corresponding N levels were 200 and 150 kg ha−1, respectively. The severity of stem hollow markedly reduced with increasing N levels only when B supply was adequate. The results !ihow that stem hollow and curd rot of cauliflower are direct manifestation of B-deficiency and proper balancing of N and B is required for high curd yield and low stem hollow and curd rot.
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Claims 16
Claim · model-written summary
Curd weight, diameter and yield of cauliflower responded significantly to N levels, with 200 kg ha−1 giving a response over 50 kg ha−1.
- Taxon
- Cauliflower
Brassica oleracea var. botrytist0 - Treatment
- N levels (50–300 kg ha−1)e0
- Outcome
- curd weight, diameter and yielde0
- Comparator
- 50 kg ha−1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant response to N levels (50–300 kg ha−1) in respect of curd weight, diameter and yield was obtained at 200 kg ha−1 over 50 kg ha−1”
t0“Cauliflower”
Claim · model-written summary
Any further increment in N beyond 200 kg ha-1 adversely affected curd weight, diameter and yield.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- further increment in Ne0
- Outcome
- these parameterse0
- Direction
- adversely affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Any further increment in N adversely affected these parameters”
t0“Cauliflower”
Claim · model-written summary
Stem hollow severity decreased at 300 kg N ha-1 compared with 50 kg N ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 300 kg ha−1e0
- Outcome
- severity of stem hollow (on 1–5 scale)e0
- Direction
- decreasede0
- Comparator
- 50 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The severity of stem hollow (on 1–5 scale) decreased and that of curd rot increased significantly at 300 kg ha−1 over 50 kg ha−1”
t0“Cauliflower”
Claim · model-written summary
Curd rot severity increased significantly at 300 kg N ha-1 compared with 50 kg N ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 300 kg ha−1e0
- Outcome
- curd rote0
- Direction
- increasede0
- Comparator
- 50 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The severity of stem hollow (on 1–5 scale) decreased and that of curd rot increased significantly at 300 kg ha−1 over 50 kg ha−1”
t0“Cauliflower”
Claim · model-written summary
Minimum curd rot, 17-23%, occurred at N rates of 150-200 kg ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- N application rate of 150–200e0
- Outcome
- curd rote0
- Direction
- minimume0
- Value
- 17–23%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum curd rot (17–23%) and maximum stem hollow (85%) and stem rot (45%) was seen at N application rate of 150–200 and 300 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
Maximum stem hollow, 85%, occurred at the N rate of 300 kg ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 300 kg ha−1e0
- Outcome
- stem hollowe0
- Direction
- maximume0
- Value
- 85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum curd rot (17–23%) and maximum stem hollow (85%) and stem rot (45%) was seen at N application rate of 150–200 and 300 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
Maximum stem rot, 45%, occurred at the N rate of 300 kg ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 300 kg ha−1e0
- Outcome
- stem rote0
- Direction
- maximume0
- Value
- 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum curd rot (17–23%) and maximum stem hollow (85%) and stem rot (45%) was seen at N application rate of 150–200 and 300 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
Increasing boron (foliar boric acid) significantly increased cauliflower curd size and yield.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray)e0
- Outcome
- curd size and yielde0
- Direction
- increasede0
- Comparator
- no-Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray) significantly increased curd size and yield and supressed Ca content of leaf tissue while that of B increased”
t0“Cauliflower”
Claim · model-written summary
Increasing boron (foliar boric acid) suppressed calcium content of leaf tissue.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray)e0
- Outcome
- Ca content of leaf tissuee0
- Direction
- supressede0
- Comparator
- no-Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray) significantly increased curd size and yield and supressed Ca content of leaf tissue while that of B increased”
t0“Cauliflower”
Claim · model-written summary
Increasing boron (foliar boric acid) increased boron content of leaf tissue.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray)e0
- Outcome
- that of Be0
- Direction
- increasede0
- Comparator
- no-Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing levels of B (‘no-B’, 0.0125 and 0.125% boric acid; each applied thrice through foliar spray) significantly increased curd size and yield and supressed Ca content of leaf tissue while that of B increased”
t0“Cauliflower”
Claim · model-written summary
In the no-B control the maximum reduction in curd rot percentage was at 250 kg N ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 250 kg ha−1e0
- Outcome
- percentage of curd rote0
- Direction
- maximum reductione0
- Comparator
- no-Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum reduction in the percentage of curd rot was at 250 kg ha−1 in ‘no-B’ control while at 0.0125 and 0.125 per cent boric acid concentrations, the corresponding N levels were 200 and 150 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
At 0.0125% boric acid the maximum reduction in curd rot percentage was at 200 kg N ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 200e0
- Outcome
- percentage of curd rote0
- Direction
- maximum reductione0
- Qualifier
- 0.0125e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum reduction in the percentage of curd rot was at 250 kg ha−1 in ‘no-B’ control while at 0.0125 and 0.125 per cent boric acid concentrations, the corresponding N levels were 200 and 150 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
At 0.125% boric acid the maximum reduction in curd rot percentage was at 150 kg N ha-1.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- 150 kg ha−1e0
- Outcome
- percentage of curd rote0
- Direction
- maximum reductione0
- Qualifier
- 0.125 per cent boric acide0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum reduction in the percentage of curd rot was at 250 kg ha−1 in ‘no-B’ control while at 0.0125 and 0.125 per cent boric acid concentrations, the corresponding N levels were 200 and 150 kg ha−1, respectively”
t0“Cauliflower”
Claim · model-written summary
Stem hollow severity was markedly reduced with increasing N levels only when B supply was adequate.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Treatment
- increasing N levelse0
- Outcome
- severity of stem hollowe0
- Direction
- markedly reducede0
- Qualifier
- only when B supply was adequatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The severity of stem hollow markedly reduced with increasing N levels only when B supply was adequate”
t0“Cauliflower”
Claim · model-written summary
The authors conclude that stem hollow and curd rot of cauliflower are a direct manifestation of boron deficiency.
- Taxon
- cauliflowerBrassica oleracea var. botrytise0
- Outcome
- stem hollow and curd rote0
- Qualifier
- direct manifestation of B-deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stem hollow and curd rot of cauliflower are direct manifestation of B-deficiency”
Claim · model-written summary
The authors recommend proper balancing of N and B for high curd yield and low stem hollow and curd rot.
- Taxon
- CauliflowerBrassica oleracea var. botrytist0
- Outcome
- proper balancing of N and Be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper balancing of N and B is required for high curd yield and low stem hollow and curd rot”
t0“Cauliflower”
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