Lodging in Oats and Wheat

Welton, F. A.

doi:10.1086/333830

Cited by 44 publications

(38 citation statements)

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“…Boudet et al (2003) found that the lignin content was increased due to elevated activities of phenylalanine ammonia-lyase (PAL), tyrosine ammonialyase (TAL), 4-coumarate: CoA ligase (4CL), and cinnamyl (Jones et al, 2001;. Low lignin content may result in weak mechanical strength of culm in wheat and oats (Welton, 1928). The wheat cultivars showing high resistance to culm snapping and lodging, had a higher lignin content and higher activities of PAL, TAL, 4CL, and CAD than other cultivars .…”

mentioning

confidence: 99%

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Wang

Ruan

Yuan

et al. 2015

Plant Production Science

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Lodging is an important constraint limiting buckwheat yield and quality by bending or breaking culm on buckwheat production worldwide. This study was conducted with Ningqiao 01, a moderate lodging resistance cultivar of buckwheat, to determine whether lignin synthesis and lodging resistance of buckwheat are affected by nitrogen fertilizer and planting density. The results showed that the lignin content at the bottom of the 2nd internode was significantly and negatively correlated with lodging index and lodging percentage, but significantly and positively correlated with snapping resistance. The snapping resistance rose and then fell with the increase of nitrogen fertilizer. The snapping resistance decreased with the increase of planting density. The lodging index increased with the increase of nitrogen fertilizer and planting density. The lignin content and its related enzymes activities decreased with the increase of nitrogen fertilizer and planting density. These results suggested that the lignin content is closely related to the lodging resistance of buckwheat, and a higher lignin content could strengthen the lodging resistance of buckwheat. The increase of nitrogen fertilizer and planting density significantly increased the risk of lodging by decreasing the lignin content and its related enzymes activities at the bottom of the 2nd internode.Key words: Buckwheat, Lignin, Lodging, Nitrogen fertilizer, Planting density.Buckwheat (Fagopyrum esculentum), which belongs to the family Polygonaceae, genus Fagopyrum, is commonlyconsumed in arid and cold regions in the world (Koyama et al., 2013). Buckwheat species native to China have been systematically classified since 1913 and it has been praised as one of the most faddish green function in the 21st century (Guo et al., 2007). Buckwheat grains are an important source of macroelements such as K, Ca, Mg, and Na as well as microelements such as Mn, Zn, Se, and Cu (Wei et al., 2003), and they contain rutin, riboflavin, pyridoxine, thiamine, lysine, methionine, arginine, and threonine (Fabjan et al., 2003). The starch of buckwheat includes numerous compounds that have been identified to have beneficial effects on human health, including lowering both blood lipid and sugar levels (MendlerDrienyovszki et al., 2013).Lodging, the permanent displacement of stems from an upright position due to internal and external factors (Pinthus, 1973), is an important constraint limiting crop yields and quality (Crook and Ennos, 1994). Severe lodging destroys plant morphology, resulting in the reduction of photosynthetic ability, grain yield, grain filling, and harvesting efficiency (Berry and Spink, 2012). Enhancing the physical strength of the culm is important for lodging resistance. In spite of the vast research performed to reduce lodging in major cereal crops, such as wheat and rice, lodging is still a dominant contributor to yield reduction (Athwal, 1971;Murakami et al., 2012). Lodging caused a 14.3% loss in rice production in coastal regions of Jiangsu China (Zhang et a...

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confidence: 99%

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Wang

Ruan

Yuan

et al. 2015

Plant Production Science

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“…Influence of silica on mechanical properties was mostly studied in relation to stem lodging of crop plants in agronomy. Different studies showed the reduction of lodging through fertilizing with silicon (Welton 1928;Tisdale et al 1985;Hong et al 2009), due to increased culm wall thickness and increased size of vascular bundles (Shimoyama 1958;da Cunha et al 2008).…”

Section: Mechanic Stability/lodgingmentioning

confidence: 99%

Review: The Functions of Phytoliths in Land Plants

Keutmann

Melzer

Seidel

et al. 2015

Biologically-Inspired Systems

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“…Lodging is no doubt due to the increased succulence of the high N plants (see data on water relationships). WELTON (34) and BRADY (4) find lodging is associated in cereal with less lignified and sclerenchymatic tissue, which would imply that in the high N plants the woody supporting tissue is less developed than in the low N plants. It may also be, as RIPPEL and LUDWIG (27) have shown, that with a smaller rate of nitrogen application the ratio of the dry weight of the aerial part to the dry weight of the roots is less.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Nutrition of Sugar Cane

Das

1936

Plant Physiol.

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Lodging in Oats and Wheat

Cited by 44 publications

References 6 publications

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Review: The Functions of Phytoliths in Land Plants

Nitrogen Nutrition of Sugar Cane

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