Analysis of Yield‐Formation Processes under No‐Till and Conventional Tillage for Soft Red Winter Wheat in the South‐Central Region

Kumudini, S.; Grabau, Larry J.; Sanford, David A. Van; Omielan, J.

doi:10.2134/agronj2007.0341

Cited by 17 publications

(25 citation statements)

References 25 publications

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“…Regarding the tillage × genotype interactions for this yield component, it was always reported as non-significant (Kumudini et al 2008). No differences in the rate of genetic progress between the two systems evaluated in the present study warrant a shift in focus to traits that previously received little attention as selection criteria (Table 2, Fig.…”

Section: Cereal Research Communications 42 2014mentioning

confidence: 58%

Genotype × tillage interaction in a recurrent selection program in wheat

Maich¹,

Rienzo²

2014

Cereal Research Communications

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The objective of this study was to test if the response to 10 cycles of a recurrent selection program conducted under conventional tillage and rain fed conditions was the same when contrasted, for several traits, under conventional and non-tillage practices. During two season (2011 and 2012) the 44 S-derived families (four/C 0 to C 10 populations) were evaluated under conventional and non-tillage systems in two fields next to each other. Days to anthesis, plant height, grain, and biomass yield and 1000-grain weight were determined. The grain number per m 2 and harvest index was also estimated. From a random sample of 10 tillers the spikelet per spike and grains per spike were measured. For each trait, a linear mixed model (regression) was fitted to the experimental data. The slopes, under conventional tillage, were significant greater than zero for grain yield, harvest index, seeds per square meter, spikelet per spike and seeds per spike. Under non-tillage the list of traits showing slopes significantly greater than zero was shorter. For most traits there was a significant difference in the intercept terms between conventional tillage and non-tillage, which is interpreted as the tillage-practice effect. The concurrent evaluation in conventional and non-tillage soil managements of ten cycles of a recurrent selection program performed under conventional tillage confirmed the occurrence of a significant genetic progress only under conventional tillage.

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Section: Cereal Research Communications 42 2014mentioning

confidence: 58%

Genotype × tillage interaction in a recurrent selection program in wheat

Maich¹,

Rienzo²

2014

Cereal Research Communications

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“…The more dramatic yield increase in compost plots during these study years may be related to more years with above normal rainfall, which may have leached fertilizer N below the wheat root zone. Kumudini et al (2008) reported similar wheat yields under NT and IT in three of fi ve site-years. Of the 6 yr with grain yield data in this study, four had at least 2 mo with above normal rainfall and 3 yr had 3 mo with above normal rainfall.…”

Section: Dry Matter Grain Yield and Yield Componentsmentioning

confidence: 86%

“…comparing intensive tillage (IT) to no-tillage (NT) systems (Lund et al, 1993;Singer et al, 2004;Kumudini et al, 2008). This inconsistency supports the need for additional research.…”

mentioning

confidence: 99%

Winter Wheat and Red Clover Intercrop Response to Tillage and Compost Amendment

2012

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Frost‐seeding red clover (Trifolium pratense L.) into winter cereals is an efficient establishment method, although performance under contrasting soil management practices remains unclear. Wheat and intercropped red clover productivity were evaluated in intensive tillage (IT), moderate tillage (MT), and no tillage (NT) with and without compost amendment in a corn (Zea mays L.)–soybean [Glycine max (L.) Merr.]–winter wheat (Triticum aestivum L.) and red clover rotation between 2005 and 2010. Wheat yields were not affected by tillage system and averaged 3.80 Mg ha−1 but were 10% higher in compost amended soil compared to no compost. Red clover plant density and dry matter (DM) at cereal grain harvest averaged 127 plants m−2 and 32 g m−2 and were not affected by tillage or amendment treatments. Maximum wheat canopy light interception was attained in late May to early June and ranged from 84 to 91% and typically exceeded 77% light interception for at least 22 d. Red clover root DM increased on average 378% between wheat harvest and 40 d after harvest compared with a 64% average increase in red clover root length. Red clover shoot:root averaged 8.5 at wheat harvest compared with 11.2 40 d after wheat harvest. Producers using this wheat and red clover intercrop should expect no difference in wheat yield or red clover productivity when using IT, MT, or NT.

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“…For wheat yield components under NT and CT systems, Kumudini et al. () found that NT system increased internal competition for assimilates by increased tillering, and this resulted in wheat yield reduction relative to CT. In this study, warming increased tillers m −2 more in NT than CT (17.7% vs. 14.2% in 2010 and 19.8% vs. 24.2% in 2011), which might be one reason for yield reduction in NT, but minimum change in CT. Modhej et al.…”

Section: Discussionmentioning

confidence: 99%

“…Based on the analysis of wheat yield components, Kumudini et al. () considered that less tillers under CT could result in higher yield in CT. Wheat tillering could be affected by warming; there are reports that temperature rise decreases tillers per unit area (Batts et al.…”

Section: Introductionmentioning

confidence: 99%

Is the change of winter wheat yield under warming caused by shortened reproductive period?

Hou¹,

Ouyang²,

Yunsheng³

et al. 2012

Ecology and Evolution

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Previous reports from laboratory-controlled experiments and models considered that a shorter reproductive period could be the main reason for wheat yield reduction in the warmer world. However, this conclusion needs to be proved carefully by field-scale experiments. In this study, a field-scale continuous open-warming experiment was conducted to quantify the adjustment of winter wheat growth and yield under conventional tillage (CT) and no-till (NT) systems in the North China Plain (NCP). Canopy temperatures were warmed using infrared heaters between 1.0 and 1.6°C (daytime and nighttime, respectively) above the control. Wheat yields under CT were not significantly reduced over the two seasons (2010 and 2011), but yields under NT were 3.3% and 6.1% lower, respectively. The growing seasons for both CT and NT were shortened 6 days in 2010 and 11 days in 2011; however, the reproductive periods were maintained. The shortened days were due to a significantly shorter springtime re-greening stage followed by minimal changes in other phenological stages (jointing, flag completed, heading, anthesis, and grain-filling). The temporal advance by warming resulted in lower growing-season mean air temperatures (MAT) for warmed plots than the control from 0.23 to 4.22°C for the same subsequent phenological stages. Warming increased the number of tillers m−2 and kernel weight, but tended to decrease the number of spikes m−2 in the two tillage systems. The heavier kernels offset the yield reduction from smaller number of spikes. Warming increased the wheat aboveground biomass from 10% to 20% suggesting the potential to sequester more CO2. This study suggests that winter wheat might adjust its growth (shortened vegetative period to maintain reproductive period) to partly compensate for the negative effects from global warming in this temperate irrigated cropland.

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Analysis of Yield‐Formation Processes under No‐Till and Conventional Tillage for Soft Red Winter Wheat in the South‐Central Region

Cited by 17 publications

References 25 publications

Genotype × tillage interaction in a recurrent selection program in wheat

Genotype × tillage interaction in a recurrent selection program in wheat

Winter Wheat and Red Clover Intercrop Response to Tillage and Compost Amendment

Is the change of winter wheat yield under warming caused by shortened reproductive period?

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