Abstract
A field experiment was conducted with twelve hybrid germplasm lines of CYMMIT along with three hybrid checks replicated thrice. Those germplasm lines were evaluated under moisture deficit stress for drought tolerance during the Rabi season 2015. The stress was imposed during the reproductive phase of development and the readings were recorded three times at 55 DAS, 60 DAS, 90 DAS. The parameters recorded were Leaf: Stem ratio, Root length, Root volume, Root: Shoot ratio, Root dry weight, Stem dry weight and leaf dry weights of the plant along with total drymatter, and grain yield. The results obtained from the experiment indicated that the moisture deficit stress during the reproductive growth phase resulted in a drastic decline in the yield by 2 to 3 times than the usual. Root characteristics play an important role in the drought mitigation strategies of maize plants the root length and the root volume results show that a significant increase in root volume in germplasm line Z638-2 from 250ml to 309ml resulted in a higher yield of 79.1 g per plant. The root length also show a similar trend of increase in Z638-2 from 27.50cm to 35.53cm. Root dry weight was observed maximum in Z637-2 which was one of the best yielder.
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Claims 5
Claim · model-written summary
Reproductive-phase moisture deficit reduced yield by two to three times.
- Treatment
- moisture deficit stresse0
- Outcome
- yielde0
- Direction
- declinee0
- Value
- 2 to 3 timese0
- Comparator
- the usuale0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moisture deficit stress during the reproductive growth phase resulted in a drastic decline in the yield by 2 to 3 times than the usual”
t0“Maize”
Claim · model-written summary
Z638-2 root volume increased from 250ml to 309ml.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant increase in root volume in germplasm line Z638-2 from 250ml to 309ml”
t0“Maize”
Claim · model-written summary
Z638-2 had a higher yield of 79.1 g per plant alongside its increased root volume.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant increase in root volume in germplasm line Z638-2 from 250ml to 309ml resulted in a higher yield of 79.1 g per plant”
t0“Maize”
Claim · model-written summary
Z638-2 root length increased from 27.50cm to 35.53cm.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root length also show a similar trend of increase in Z638-2 from 27.50cm to 35.53cm”
t0“Maize”
Claim · model-written summary
Z637-2 had the maximum root dry weight and was among the best yielders.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root dry weight was observed maximum in Z637-2 which was one of the best yielder.”
t0“Maize”
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drought · yield · Zea mays (maize)Positive and negative results
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