Abstract
Two experiments were conducted at the Experimental Farm of Agronomy Department, Faculty of Agriculture, Mansoura University, Egypt during 2007/2008 and 2008/2009 seasons. The aim of the first experiment, was to study the effect of harvesting dates 45, 55, 65 and 75 days from 50% heading under three wheat seed classes (foundation, registered and certified) on yield and its components (c.v. Giza168). The second experiment was conducted at the laboratory of Seed Technology Research Unit, El-Mansoura, Dakahlia Governorate and aimed to study the effect of harvesting dates and wheat seed classes seed quality during different storage periods, i.e. (0, 3 and 6 months after harvesting). The results revealed that, harvesting dates had significant effects on grains moisture content, number of spikes/m2, spike weight, number of spikeletes/ spike, number of grains/spike, grains spike weight, 1000-grain weight and grain yield. Harvesting wheat plants after 65 day from 50% heading produced the highest means yield and its components traits i.e. (spikes number/m2, 1000-seed weight, grain yield) in both seasons. Result showed that insignificant differences among seed classes on growth characters, yield and its components. In general, number of spike/m2, spike length, number of spikeletes/spike, number of grain/spike and grain yield were recorded maximum value from foundation seed followed by registered and certified seed category. Increasing storage periods had significant effect on all the studied traits. While the prolong the storage periods from 0 to 6 months from storage lead to the decrease in germination percentage, speed of germination, germination energy and germination rate and the decrease in seedling vigor traits (seedling length and fresh and dry weight) and carbohydrate percentage in the both seasons. While this increase in storage period lead to the increase in mean germination time, protein content, insect infection percentage and seed dry weight loss percentage in the first and second seasons. Harvesting dates significantly affected on germination energy, germination rate, seedling fresh weight, seedling dry weight, insect infection percentage, seed dry weight loss, protein content and carbohydrate percentage in the first and second seasons. While it had different effects on speed of germination only in the first season. The interaction among storage periods, harvesting date and seed classes had a significant effect on germination energy and seedling fresh weight in the first and second seasons and seedling dry weight in the first season only.
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Claims 20
Claim · model-written summary
Harvesting dates significantly affected grain moisture, spike number and spike weight.
- Taxon
- WHEAT
Triticum aestivumt0 - Treatment
- harvesting datese0
- Outcome
- grains moisture content, number of spikes/m2, spike weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvesting dates had significant effects on grains moisture content, number of spikes/m2, spike weight”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected spikelet number, grain number and grain spike weight.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- harvesting datese0
- Outcome
- number of spikeletes/ spike, number of grains/spike, grains spike weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvesting dates had significant effects on grains moisture content, number of spikes/m2, spike weight, number of spikeletes/ spike, number of grains/spike, grains spike weight, 1000-grain weight and grain yield.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected 1000-grain weight and grain yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- harvesting datese0
- Outcome
- 1000-grain weight and grain yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvesting dates had significant effects on grains moisture content, number of spikes/m2, spike weight, number of spikeletes/ spike, number of grains/spike, grains spike weight, 1000-grain weight and grain yield.”
t0“WHEAT”
Claim · model-written summary
Harvest at 65 days from 50% heading gave the highest spike number, 1000-seed weight and grain yield in both seasons.
- Taxon
- wheatTriticum aestivume0
- Treatment
- after 65 day from 50% headinge0
- Outcome
- spikes number/m2, 1000-seed weight, grain yielde0
- Direction
- higheste0
- Qualifier
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting wheat plants after 65 day from 50% heading produced the highest means yield and its components traits i.e. (spikes number/m2, 1000-seed weight, grain yield) in both seasons.”
Claim · model-written summary
Seed classes did not differ significantly in growth characters, yield or yield components.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- seed classese0
- Outcome
- growth characters, yield and its componentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Result showed that insignificant differences among seed classes on growth characters, yield and its components.”
t0“WHEAT”
Claim · model-written summary
Foundation seed had the maximum spike number, spike length and spikelet number, followed by registered and certified seed.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- foundation seede0
- Outcome
- number of spike/m2, spike length, number of spikeletes/spikee0
- Direction
- maximume0
- Comparator
- registered and certified seed categorye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, number of spike/m2, spike length, number of spikeletes/spike, number of grain/spike and grain yield were recorded maximum value from foundation seed followed by registered and certified seed category.”
t0“WHEAT”
Claim · model-written summary
Foundation seed had the maximum grains per spike and grain yield, followed by registered and certified seed.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- foundation seede0
- Outcome
- number of grain/spike and grain yielde0
- Direction
- maximume0
- Comparator
- registered and certified seed categorye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, number of spike/m2, spike length, number of spikeletes/spike, number of grain/spike and grain yield were recorded maximum value from foundation seed followed by registered and certified seed category.”
t0“WHEAT”
Claim · model-written summary
Increasing storage significantly affected all studied traits.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Increasing storage periodse0
- Outcome
- all the studied traitse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing storage periods had significant effect on all the studied traits.”
t0“WHEAT”
Claim · model-written summary
Storage from 0 to 6 months decreased germination percentage, speed and energy in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- storage periods from 0 to 6 monthse0
- Outcome
- germination percentage, speed of germination, germination energye0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the prolong the storage periods from 0 to 6 months from storage lead to the decrease in germination percentage, speed of germination, germination energy and germination rate”
t0“WHEAT”
Claim · model-written summary
Prolonged storage decreased germination rate.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- storage periods from 0 to 6 monthse0
- Outcome
- germination ratee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the prolong the storage periods from 0 to 6 months from storage lead to the decrease in germination percentage, speed of germination, germination energy and germination rate”
t0“WHEAT”
Claim · model-written summary
Prolonged storage decreased seedling length and fresh and dry weights.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- storage periods from 0 to 6 monthse0
- Outcome
- seedling length and fresh and dry weighte0
- Direction
- decreasee0
- Qualifier
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the prolong the storage periods from 0 to 6 months from storage lead to the decrease in germination percentage, speed of germination, germination energy and germination rate and the decrease in seedling vigor traits (seedling length and fresh and dry weight) and carbohydrate percentage in the both seasons.”
t0“WHEAT”
Claim · model-written summary
Prolonged storage decreased carbohydrate percentage in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- storage periods from 0 to 6 monthse0
- Outcome
- carbohydrate percentagee0
- Direction
- decreasee0
- Qualifier
- both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the prolong the storage periods from 0 to 6 months from storage lead to the decrease in germination percentage, speed of germination, germination energy and germination rate and the decrease in seedling vigor traits (seedling length and fresh and dry weight) and carbohydrate percentage in the both seasons.”
t0“WHEAT”
Claim · model-written summary
Increasing storage increased mean germination time and protein content in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- increase in storage periode0
- Outcome
- mean germination time, protein contente0
- Direction
- increasee0
- Qualifier
- first and second seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this increase in storage period lead to the increase in mean germination time, protein content, insect infection percentage and seed dry weight loss percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Increasing storage increased insect infection and seed dry weight loss percentages in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- increase in storage periode0
- Interactor
- insecte0pest
- Outcome
- insect infection percentage and seed dry weight loss percentagee0
- Direction
- increasee0
- Qualifier
- first and second seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this increase in storage period lead to the increase in mean germination time, protein content, insect infection percentage and seed dry weight loss percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected germination energy and rate and seedling fresh weight in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Harvesting datese0
- Outcome
- germination energy, germination rate, seedling fresh weighte0
- Qualifier
- first and second seasonse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting dates significantly affected on germination energy, germination rate, seedling fresh weight, seedling dry weight, insect infection percentage, seed dry weight loss, protein content and carbohydrate percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected seedling dry weight in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Harvesting datese0
- Outcome
- seedling dry weighte0
- Qualifier
- first and second seasonse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting dates significantly affected on germination energy, germination rate, seedling fresh weight, seedling dry weight, insect infection percentage, seed dry weight loss, protein content and carbohydrate percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected insect infection percentage and seed dry weight loss in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Harvesting datese0
- Interactor
- insecte0pest
- Outcome
- insect infection percentage, seed dry weight losse0
- Qualifier
- first and second seasonse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting dates significantly affected on germination energy, germination rate, seedling fresh weight, seedling dry weight, insect infection percentage, seed dry weight loss, protein content and carbohydrate percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates significantly affected protein and carbohydrate contents in both seasons.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Harvesting datese0
- Outcome
- protein content and carbohydrate percentagee0
- Qualifier
- first and second seasonse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting dates significantly affected on germination energy, germination rate, seedling fresh weight, seedling dry weight, insect infection percentage, seed dry weight loss, protein content and carbohydrate percentage in the first and second seasons.”
t0“WHEAT”
Claim · model-written summary
Harvesting dates affected germination speed only in the first season.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- Harvesting datese0
- Outcome
- speed of germinatione1
- Qualifier
- only in the first seasone1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting dates significantly affected”
e1“While it had different effects on speed of germination only in the first season.”
t0“WHEAT”
Claim · model-written summary
Storage, harvest date and seed class interactions significantly affected germination energy and seedling fresh weight in both seasons, and seedling dry weight only in the first.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- interaction among storage periods, harvesting date and seed classese0
- Outcome
- germination energy and seedling fresh weighte0
- Qualifier
- in the first and second seasons and seedling dry weight in the first season onlye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction among storage periods, harvesting date and seed classes had a significant effect on germination energy and seedling fresh weight in the first and second seasons and seedling dry weight in the first season only.”
t0“WHEAT”
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