Abstract
This research was conducted in 2007 and 2008 cropping seasons in the experimental field of Shahid Salemi, Ahvaz, south west of Iran. In each year, the study consisted of a split split-plot experiment, using Randomized Complete Block Design (RCBD) with three replications. Four irrigation levels including irrigation- off at the 8 leaf, the 12 leaf and the tasseling stages and optimum irrigation were considered as the main plots __ and the subplots consisted of two planting patterns, one-and two-rows planting pattern respectively and plant population as the 3 treatment with three levels of 75000, 85000 and 95000 plant ha were placed in the sub- th 1 subplots. According to the results of combined analysis, the effect ofirrigation on grain and biological yields was significant. Unlike planting patterns, plant population had significant effects on grain and biological yields. Increasing plant population improved grain and biological yields. The interaction effects of irrigation and plant population on grain and biological yields were significant, the highest grain and biological yields were obtained from optimum irrigation and the highest plant population treatment. The effects of irrigation on rate, contribution and efficiency of dry matter remobilization and current photosynthesis were significant. The highest dry matter remobilization rate (474.5 g. m ) and current photosynthesis rate (411.28 g. m ) were 22 obtained from optimum irrigation treatment, whereas, irrigation-off at the tasseling stage had the lowest current photosynthesis rate and the lowest dry matter remobilization rate was obtained from irrigation-off at the 12-leaf stage treatment. The rate, contribution and efficiency of current photosynthesis in one-row planting pattern was higher than two-rows planting, whereas, the highest rate, contribution and efficiency of dry matter remobilization belonged to two-rows planting pattern. In dense population situations, due to the reduction in light penetration, senescence and chlorosis of leaves accelerated; the rate, contribution and current photosynthesis reduced although they caused a significant increase in rate, contribution and efficiency of dry matter remobilization. The study of the tripartite effects showed that the highest current photosynthesis rate and remobilization were obtained from optimum irrigation and one-row planting pattern in plant population of 85000 plants ha and optimum irrigation and two-rows planting pattern in plant population of 95000 plants ha 11
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Claims 15
Claim · model-written summary
Irrigation significantly affected grain and biological yields.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect ofirrigation on grain and biological yields was significant”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Plant population significantly affected grain and biological yields.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant population had significant effects on grain and biological yields”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Increasing population improved grain and biological yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing plant population improved grain and biological yields”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Irrigation and population interacted significantly for grain and biological yields.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction effects of irrigation and plant population on grain and biological yields were significant”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Optimum irrigation and highest population gave the highest grain and biological yields.
- Treatment
- optimum irrigation and the highest plant population treatmente0
- Outcome
- grain and biological yieldse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest grain and biological yields were obtained from optimum irrigation and the highest plant population treatment”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Irrigation significantly affected dry matter remobilization and current photosynthesis metrics.
- Treatment
- irrigatione0
- Outcome
- rate, contribution and efficiency of dry matter remobilization and current photosynthesise0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of irrigation on rate, contribution and efficiency of dry matter remobilization and current photosynthesis were significant”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Optimum irrigation gave the highest dry matter remobilization rate, 474.5 g. m.
- Treatment
- optimum irrigation treatmente0
- Outcome
- dry matter remobilization ratee0
- Direction
- higheste0
- Value
- 474.5 g. me0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest dry matter remobilization rate (474.5 g. m ) and current photosynthesis rate (411.28 g. m ) were 22 obtained from optimum irrigation treatment”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Optimum irrigation gave the highest current photosynthesis rate, 411.28 g. m.
- Treatment
- optimum irrigation treatmente0
- Outcome
- current photosynthesis ratee0
- Direction
- higheste0
- Value
- 411.28 g. me0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest dry matter remobilization rate (474.5 g. m ) and current photosynthesis rate (411.28 g. m ) were 22 obtained from optimum irrigation treatment”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Irrigation cutoff at tasseling produced the lowest current photosynthesis rate.
- Treatment
- irrigation-off at the tasseling stagee0
- Outcome
- current photosynthesis ratee0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation-off at the tasseling stage had the lowest current photosynthesis rate”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Irrigation cutoff at the 12-leaf stage produced the lowest dry matter remobilization rate.
- Treatment
- irrigation-off at the 12-leaf stage treatmente0
- Outcome
- dry matter remobilization ratee0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest dry matter remobilization rate was obtained from irrigation-off at the 12-leaf stage treatment”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
One-row planting gave higher current photosynthesis rate, contribution and efficiency than two-row planting.
- Treatment
- one-row planting patterne0
- Outcome
- rate, contribution and efficiency of current photosynthesise0
- Direction
- highere0
- Comparator
- two-rows plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate, contribution and efficiency of current photosynthesis in one-row planting pattern was higher than two-rows planting”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Two-row planting had the highest dry matter remobilization rate, contribution and efficiency.
- Treatment
- two-rows planting patterne0
- Outcome
- rate, contribution and efficiency of dry matter remobilizatione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest rate, contribution and efficiency of dry matter remobilization belonged to two-rows planting pattern”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Dense populations accelerated leaf senescence and chlorosis.
- Treatment
- dense population situationse0
- Outcome
- senescence and chlorosis of leavese0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In dense population situations, due to the reduction in light penetration, senescence and chlorosis of leaves accelerated”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Dense populations reduced current photosynthesis rate and contribution.
- Treatment
- dense population situationse0
- Outcome
- rate, contribution and current photosynthesise0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In dense population situations, due to the reduction in light penetration, senescence and chlorosis of leaves accelerated; the rate, contribution and current photosynthesis reduced”
t0“GrainCorn (Zea mays L.)”
Claim · model-written summary
Dense populations significantly increased dry matter remobilization rate, contribution and efficiency.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they caused a significant increase in rate, contribution and efficiency of dry matter remobilization”
t0“GrainCorn (Zea mays L.)”
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