Abstract
SUMMARY Field studies conducted in 1983/84–1985/86 at Ludhiana showed that the response of physiological and yield characters of Brassica juncea to foliar sprays of chlorocholine chloride as cycocel (CCC) at 250 and 500 p.p.m. and ethrel at 500, 1000 and 1500 p.p.m. differed at different doses of N (O, 50 and 100 kg/ha). The crop did not respond to CCC or ethrel in the absence of N, whereas a significant response was obtained with 250 p.p.m. CCC or 500 p.p.m. ethrel at 50 kg N/ha and 500 p.p.m. CCC or 1000 p.p.m. ethrel at 100 kg N/ha. Response to increasing doses of N increased in the presence of CCC or ethrel spray. The highest concentration of ethrel (1500 p.p.m.) proved detrimental at 0 and N/ha. CCC and ethrel reduced the crop canopy, enhanced the chlorophyll content of leaves, interception of photosynthetically active radiation and sink capacity (number of pods per plant and 1000-seed weight) at 50 and 100 kg N/ha. A higher leaf area index was obtained during the pod development phase with CCC and ethrel sprays. The oil content and germination potential of seeds from crops treated with CCC (250 and 500 p.p.m.) and ethrel (500 and 1000 p.p.m.) were as high as in the untreated crop, irrespective of N dose. However, 1500 p.p.m. of ethrel sprayed on a crop raised without N suppressed germination capacity.
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Claims 15
Claim · model-written summary
Neither CCC nor ethrel elicited a crop response without nitrogen.
- Taxon
- Brassica juncea
Brassica junceat0 - Treatment
- CCC or ethrele0
- Outcome
- crop did not responde0
- Direction
- did not responde0
- Comparator
- absence of Ne0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop did not respond to CCC or ethrel in the absence of N”
t0“Brassica juncea”
Claim · model-written summary
At 50 kg N/ha, 250 p.p.m. CCC gave a significant response.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 250 p.p.m. CCCe0
- Outcome
- significant responsee0
- Qualifier
- 50 kg N/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant response was obtained with 250 p.p.m. CCC or 500 p.p.m. ethrel at 50 kg N/ha”
t0“Brassica juncea”
Claim · model-written summary
At 50 kg N/ha, 500 p.p.m. ethrel gave a significant response.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 500 p.p.m. ethrele0
- Outcome
- significant responsee0
- Qualifier
- 50 kg N/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant response was obtained with 250 p.p.m. CCC or 500 p.p.m. ethrel at 50 kg N/ha”
t0“Brassica juncea”
Claim · model-written summary
At 100 kg N/ha, 500 p.p.m. CCC gave a significant response.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 500 p.p.m. CCCe0
- Outcome
- 100 kg N/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“500 p.p.m. CCC or 1000 p.p.m. ethrel at 100 kg N/ha”
t0“Brassica juncea”
Claim · model-written summary
At 100 kg N/ha, 1000 p.p.m. ethrel gave a significant response.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 1000 p.p.m. ethrele0
- Outcome
- 100 kg N/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“500 p.p.m. CCC or 1000 p.p.m. ethrel at 100 kg N/ha”
t0“Brassica juncea”
Claim · model-written summary
Crop response to increasing nitrogen rose with CCC or ethrel spray.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- increasing doses of Ne0
- Outcome
- Responsee0
- Direction
- increasede0
- Qualifier
- presence of CCC or ethrel spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Response to increasing doses of N increased in the presence of CCC or ethrel spray.”
t0“Brassica juncea”
Claim · model-written summary
The highest ethrel concentration was detrimental at the reported low nitrogen settings.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- ethrel (1500 p.p.m.)e0
- Outcome
- proved detrimentale0
- Direction
- detrimentale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest concentration of ethrel (1500 p.p.m.) proved detrimental at 0 and N/ha.”
t0“Brassica juncea”
Claim · model-written summary
CCC and ethrel reduced crop canopy at 50 and 100 kg N/ha.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- CCC and ethrele0
- Outcome
- crop canopye0
- Direction
- reducede0
- Qualifier
- 50 and 100 kg N/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CCC and ethrel reduced the crop canopy, enhanced the chlorophyll content of leaves, interception of photosynthetically active radiation and sink capacity (number of pods per plant and 1000-seed weight) at 50 and 100 kg N/ha.”
t0“Brassica juncea”
Claim · model-written summary
CCC and ethrel enhanced leaf chlorophyll content at 50 and 100 kg N/ha.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- CCC and ethrele0
- Outcome
- chlorophyll content of leavese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CCC and ethrel reduced the crop canopy, enhanced the chlorophyll content of leaves, interception of photosynthetically active radiation and sink capacity (number of pods per plant and 1000-seed weight) at 50 and 100 kg N/ha.”
t0“Brassica juncea”
Claim · model-written summary
CCC and ethrel enhanced interception of photosynthetically active radiation.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- CCC and ethrele0
- Outcome
- interception of photosynthetically active radiatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CCC and ethrel reduced the crop canopy, enhanced the chlorophyll content of leaves, interception of photosynthetically active radiation and sink capacity (number of pods per plant and 1000-seed weight) at 50 and 100 kg N/ha.”
t0“Brassica juncea”
Claim · model-written summary
CCC and ethrel enhanced sink capacity in pod number and seed weight.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- CCC and ethrele0
- Outcome
- sink capacity (number of pods per plant and 1000-seed weight)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CCC and ethrel reduced the crop canopy, enhanced the chlorophyll content of leaves, interception of photosynthetically active radiation and sink capacity (number of pods per plant and 1000-seed weight) at 50 and 100 kg N/ha.”
t0“Brassica juncea”
Claim · model-written summary
CCC and ethrel increased leaf area index during pod development.
- Taxon
- Brassica junceaBrassica junceat0
- Organ / stage
- pod development phasee0
- Treatment
- CCC and ethrel sprayse0
- Outcome
- leaf area indexe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher leaf area index was obtained during the pod development phase with CCC and ethrel sprays.”
t0“Brassica juncea”
Claim · model-written summary
Oil content and seed germination potential under CCC were as high as in untreated crops.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- CCC (250 and 500 p.p.m.)e0
- Outcome
- oil content and germination potential of seedse0
- Direction
- as high ase0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oil content and germination potential of seeds from crops treated with CCC (250 and 500 p.p.m.) and ethrel (500 and 1000 p.p.m.) were as high as in the untreated crop, irrespective of N dose.”
t0“Brassica juncea”
Claim · model-written summary
Oil content and seed germination potential under moderate ethrel were as high as in untreated crops.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- ethrel (500 and 1000 p.p.m.)e0
- Outcome
- oil content and germination potential of seedse0
- Direction
- as high ase0
- Comparator
- untreated crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oil content and germination potential of seeds from crops treated with CCC (250 and 500 p.p.m.) and ethrel (500 and 1000 p.p.m.) were as high as in the untreated crop, irrespective of N dose.”
t0“Brassica juncea”
Claim · model-written summary
The highest ethrel dose without nitrogen suppressed germination capacity.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 1500 p.p.m. of ethrele0
- Outcome
- germination capacitye0
- Direction
- suppressede0
- Qualifier
- without Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1500 p.p.m. of ethrel sprayed on a crop raised without N suppressed germination capacity.”
t0“Brassica juncea”
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