Effects of Shading at Different Stages After Anthesis on Maize Grain Weight and Quality at Cytology Level

Jia, Shuangshuang; Li, Congfeng; Dong, Shuting; Zhang, Jiwang

doi:10.1016/s1671-2927(11)60307-6

Cited by 49 publications

(49 citation statements)

References 9 publications

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“…However, there was a significant decrease in seed-setting rate and 1000-grain-weight under HN, which is not in agreement with the results found by Deng et al 33 and Liu et al 34. In the present study, the effects of shading on crop yield varied in different rice cultivar, which was not only in relation to rice cultivar tolerance to low light stress, but also to light character, shading duration, crop growth period, and shading degree1735. Further studies are needed to clarify these observations under various crop growing conditions.…”

Section: Discussioncontrasting

confidence: 89%

Effects of Nitrogen and Shading on Root Morphologies, Nutrient Accumulation, and Photosynthetic Parameters in Different Rice Genotypes

Pan

Liu

et al. 2016

Sci Rep

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Nitrogen availability and illumination intensity are two key factors which affect rice growth. However, their influences on total nitrogen accumulation, photosynthetic rate, root morphologies, and yields are not fully understood. We conducted two field experiments to (1) evaluate the effects of shading under different N treatments on photosynthetic parameters, root morphologies, total nutrient accumulation, and grain yields of rice; and (2) elucidate the relationship between total nutrient accumulation and root morphologies under different shading conditions and nitrogen treatments. Three nitrogen rates, three shading treatments, and three different rice cultivars were used in two field experiments. Double shading during the grain-filling stage decreased total nutrient accumulation, altered root morphological characteristics, and decreased yields in rice. There were also significant interaction effects between nitrogen and shading on photosynthetic rate, transpiration rate, and total root length, root superficial area, and root volume. Significant interactions were found among cultivars and shading for photosynthetic rate and transpiration rate. Correlation analysis revealed that total nitrogen accumulation (TNA) and potassium accumulation (TKA) were significantly positively correlated with total root length, root superficial area, and root volume. N application could alleviate the detrimental effects of shading on total nutrient accumulation and grain yield in rice.

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Section: Discussioncontrasting

confidence: 89%

Effects of Nitrogen and Shading on Root Morphologies, Nutrient Accumulation, and Photosynthetic Parameters in Different Rice Genotypes

Pan

Liu

et al. 2016

Sci Rep

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“…Moreover, the effect of shading stress on Pn was observed to be more severe than on chlorophyll content. Thus, a short-duration shading stress during the critical development period in wheat plants might only temporarily depress chlorophyll content and Pn, thereby limiting assimilation, translocation, and starch accumulation in ears (Wang et al, 1997;Arisnabarreta and Miralles, 2008;Jia et al, 2011), thereby inducing ear sterility. Chlorophyll b content may have increased, and plants might have modified the chlorophyll a/chlorophyll b ratio to obtain more light energy (Zhu et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Effects of Shading Stress on Grain Number, Yield, and Photosynthesis during Early Reproductive Growth in Wheat

et al. 2019

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Climate change causes shading and threatens wheat (Triticum aestivum L.) yield. Understanding the effects of shading on grain number and morphological characteristics of winter wheat during the young microspore (YM) stage may secure grain yield. Field and pot experiments were performed with six widely planted winter wheat cultivars in the North China Plain (NCP), subjected to 98% blocking of natural light for different shading durations (0, 1, 2, 3, 4, 5, and 6 d) during the YM stage. Results showed that the YM stage was highly sensitive to shading stress, which significantly reduced grain number, causing grain yield loss. Moreover, response to shading varied among cultivars. Sensitive cultivars, such as Kenong9204 and Liangxing99, showed decreases in grain yield per plant of 32.2 to 74.9% and 25.7 to 91.4% in 2016 and 23.0 to 89.2% and 21.9 to 94.3% in 2017 with increasing shading duration. Reduction in grain yield with increasing shading duration was associated with decreasing grain number, grain weight, plant height, and dry matter weight of main stems and tillers. Tolerant cultivars Jimai32 and Henong825 experienced decreases in grain yield per plant of 8.2 to 17.3% and 11.3 to 14.2% in 2016 and 9.7 to 23.7% and 6.5 to 18.5% in 2017 with increasing shading duration. Adaptation of tolerant cultivars to shading was enhanced by rapid tiller development and photosynthesis recovery, inducing productive tillers to increase grain number per tiller, thus resulting in a smaller reduction in grain yield. Therefore, selecting shade‐tolerant cultivars may help to ensure high yield in winter wheat in fog‐haze areas of the NCP.

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“…5C). When shaded, the range of the decrease in spikelet filling, grain weight, and grain yield was wide (Acreche et al, 2009;Jia et al, 2011;Li et al, 2010;Moula, 2009). Meanwhile, panicles per m 2 was significantly (P < 0.05) influenced by shading, and a downtrend in the panicles was observed.…”

Section: Grain Yieldmentioning

confidence: 99%

Shading tolerance in rice is related to better light harvesting and use efficiency and grain filling rate during grain filling period

Wang

Deng

Wang

2015

Field Crops Research

102

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Effects of Shading at Different Stages After Anthesis on Maize Grain Weight and Quality at Cytology Level

Cited by 49 publications

References 9 publications

Effects of Nitrogen and Shading on Root Morphologies, Nutrient Accumulation, and Photosynthetic Parameters in Different Rice Genotypes

Effects of Nitrogen and Shading on Root Morphologies, Nutrient Accumulation, and Photosynthetic Parameters in Different Rice Genotypes

Effects of Shading Stress on Grain Number, Yield, and Photosynthesis during Early Reproductive Growth in Wheat

Shading tolerance in rice is related to better light harvesting and use efficiency and grain filling rate during grain filling period

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