Abstract
Climate is changing world over and is expected to continue to do so in future also and has potential impact on crop productivity. Punjab has a distinct sub-tropical climate with most rainfall occurring during summer mansoon. The main factors limiting wheat production in this region are rainfall and temperature. To investigate the weather variability impacts on wheat productivity in Ludhiana and Bathinda of Punjab, the present investigation was undertaken at Ludhiana and Bathinda with three dates of sowing i.e. 30th Oct. (D1), 15th Nov. (D2) and 30th Nov.(D3) and the three irrigation levels i.e. I1 (recommended schedule), I2 (one additional irrigation, after CRI stage) and I3 (delayed irrigation by one week after heading). Two wheat cultivars viz. PBW 343 (V1) and WH 542 (V2) were also taken for studies and experiments were conducted during 2008–09 and 2009–10. A drastic decline in yield was observed during 2009–10 as compared to 2008–09 at both the locations. The crop sown on 30th Oct. and 15th Nov. gave better yield than the crop sown on 30th Nov. The reduction in yield was more during 2009–10 at Bathinda as compared to Ludhiana. The analysis showed no significant effect in different irrigation schedules under three dates of sowing. Cultivar PBW 343 performed better than WH 542 during both the years under study and application of one additional irrigation after CRI stage increased grain yield over recommended irrigation schedule.
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Claims 7
Claim · model-written summary
Wheat yield declined sharply in 2009–10 relative to 2008–09 at both locations.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- yielde0
- Direction
- drastic declinee0
- Comparator
- 2008–09e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“A drastic decline in yield was observed during 2009–10 as compared to 2008–09 at both the locations”
Claim · model-written summary
Wheat sown on 30th Oct. yielded better than wheat sown on 30th Nov.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 30th Oct.e0
- Outcome
- yielde0
- Direction
- bettere0
- Comparator
- 30th Nov.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“The crop sown on 30th Oct. and 15th Nov. gave better yield than the crop sown on 30th Nov.”
Claim · model-written summary
Wheat sown on 15th Nov. yielded better than wheat sown on 30th Nov.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 15th Nov.e0
- Outcome
- yielde0
- Direction
- bettere0
- Comparator
- 30th Nov.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“The crop sown on 30th Oct. and 15th Nov. gave better yield than the crop sown on 30th Nov.”
Claim · model-written summary
Year-to-year wheat yield reduction was greater at Bathinda than Ludhiana.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- yielde0
- Direction
- reductione0
- Comparator
- Ludhianae0
- Setting
- Bathindae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“The reduction in yield was more during 2009–10 at Bathinda as compared to Ludhiana”
Claim · model-written summary
Irrigation schedules had no significant effect under the three sowing dates.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- different irrigation schedulese0
- Outcome
- effecte0
- Qualifier
- under three dates of sowinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“no significant effect in different irrigation schedules under three dates of sowing”
Claim · model-written summary
PBW 343 performed better than WH 542 in both study years.
- Taxon
- wheatTriticum aestivumt0
- Material
- PBW 343e0
- Treatment
- PBW 343e0
- Outcome
- performed bettere0
- Direction
- bettere0
- Comparator
- WH 542e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Cultivar PBW 343 performed better than WH 542 during both the years under study”
Claim · model-written summary
One additional irrigation after CRI stage increased grain yield over the recommended schedule.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- one additional irrigation after CRI stagee0
- Outcome
- grain yielde0
- Direction
- increasede0
- Comparator
- recommended irrigation schedulee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“application of one additional irrigation after CRI stage increased grain yield over recommended irrigation schedule”
The same questions in other papers
irrigation · yield · Triticum aestivum (wheat)Positive and negative results
797 papers in the same direction as this paper · 184 in the opposite direction · 7 reporting no difference from an alternative
- negative
- no effect
- negative
985 papers more in this group
See all 989 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.