Claim · model-written summary
Heat stress decreased grain yield by 25.25% relative to control in glasshouse-grown rice.
Oryza sativaVerbatim
e0“The highest decrease in morphological and physiological characteristics were observed in aborted spikelets per panicle about 2 time, chlorophyll content by 4.23% and plant height by 2.43% over control, meanwhile the fertile spikelets per panicle by 38.5%, grain yield by 25.25%, the numbers of tillers per hill by 10.76% and effective tillers per hill by 9.1% decreased in heat stress pots”
e1“the current glasshouse experiment was conducted to explore the effect of nitrogen and potassium fertilizers application on the resistance of rice against heat stress”
Title
Mohammad Taghi Karbalaei Aghamolki; Mohd Khanif Yusop; Shahram Mahoud Soltani; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2017
Other claims from this paper (19)
- Intervention effect Heat stress increased aborted spikelets per panicle about 2 times relative to control in glasshouse-grown rice.
- Intervention effect Heat stress decreased chlorophyll content by 4.23% relative to control in glasshouse-grown rice.
- Intervention effect Heat stress decreased plant height by 2.43% relative to control in glasshouse-grown rice.
- Intervention effect Heat stress decreased fertile spikelets per panicle by 38.5% relative to control in glasshouse-grown rice.
- Intervention effect Heat stress decreased the number of tillers per hill by 10.76% relative to control in glasshouse-grown rice.
- Intervention effect Heat stress decreased effective tillers per hill by 9.1% relative to control in glasshouse-grown rice.
- Observation Under heat stress, N uptake in straw decreased by 12.45%.
- Observation Under heat stress, total N uptake decreased by 12.21%.
- Observation Under heat stress, N uptake in grain decreased by 11.68%.
- Observation Under heat stress, K uptake in grain decreased by 28.96%.
- Observation Under heat stress, total K uptake decreased by 18.26%.
- Observation Under heat stress, K uptake in straw decreased by 13.43%.
- Intervention effect The highest rate of single N application remediated heat-stress damage to morphological characters by 15 to 63% in rice.
- Intervention effect The single K application increased morphological characters in heat-stressed rice by about 2%.
- Intervention effect Fertilizer management remediated heat-stress losses in rice yield and fertile spikelets, both less than 2 times relative to control.
- Intervention effect Fertilizer management remediated heat-stress losses in effective tillers by 57.6% relative to control.
- Intervention effect Fertilizer management remediated heat-stress losses in 1000-grain weight by about 4% relative to control.
- Intervention effect Single application of N and K increased N and K uptake in grain, total and straw by about 2.2 and 1.2 times more than control under heat stress, respectively.
- Intervention effect The highest levels of urea and applied K increased all uptake parameters by about 2-3 times in rice.