Relationships Between Length of the Actual and Effective Grain Filling Periods and the Grain Yield of Corn

Daynard, T. B.; Kannenberg, L. W.

doi:10.4141/cjps76-038

Cited by 66 publications

(42 citation statements)

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“…The high and positive genetic correlation between the rate of filling and the final grain weight in rice cultivars might be due to some constraints which do not allow a longer filling duration. The advantages of a higher rate of filling to attain a higher grain weight have been pointed out for other cereals when the duration of filling can not be lengthened, such as in double cropping systems (Daynard and Kannenberg, 1976;Gebeyehou et al, 1982a;Van Sanford, 1985).…”

Section: Discussionmentioning

confidence: 99%

Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Kato¹

1999

Plant Production Science

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Section: Discussionmentioning

confidence: 99%

Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Kato¹

1999

Plant Production Science

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“…A strong relationship exists between grain weight and the duration of the reproductive (grain filling) phase (correlation of r = 0.81 by Cross 1975) (Daynard et al 1971, Daynard & Kannenberg 1976, Ottaviano & Camussi 1981. Full potential grain weight is achieved when the rate of grain filling and the duration of the filling period are both at maximum.…”

Section: Effects Of Warming Upon Maizementioning

confidence: 99%

Effects of temperature changes on maize production in Mozambique

Harrison¹,

Michaelsen²,

Funk³

et al. 2011

Clim. Res.

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We examined intraseasonal changes in maize phenology and heat stress exposure over the 1979-2008 period, using Mozambique meteorological station data and maize growth requirements in a growing degree-day model. Identifying historical effects of warming on maize growth is particularly important in Mozambique because national food security is highly dependent on domestic food production, most of which is grown in already warm to hot environments. Warming temperatures speed plant development, shortening the length of growth periods necessary for optimum plant and grain size. This faster phenological development also alters the timing of maximum plant water demand. In hot growing environments, temperature increases during maize pollination threaten to make midseason crop failure the norm. In addition to creating a harsher thermal environment, we find that early season temperature increases have caused the maize reproductive period to start earlier, increasing the risk of heat and water stress. Declines in time to maize maturation suggest that, independent of effects to water availability, yield potential is becoming increasingly limited by warming itself. Regional variations in effects are a function of the timing and magnitude of temperature increases and growing season characteristics. Continuation of current climatic trends could induce substantial yield losses in some locations. Farmers could avoid some losses through simple changes to planting dates and maize varietal types.

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“…O peso de grão do milho é definido no período entre emissão dos estigmas e maturação fisiológica pela quantidade de carboidratos acumulados no processo de fotossíntese (Daynard & Kannenberg, 1976). Aggarwal & Sekhon (1991) verificaram correlação positiva do tempo decorrido entre o pendoamento, a emissão dos estigmas e a maturação fisiológica com os componentes do rendimento e com o rendimento de grãos da cultura.…”

Section: Figura 1 -Efeito De Densidades De Brachiaria Plantagineaunclassified

Interferência de Brachiaria plantaginea sobre características agronômicas, componentes do rendimento e produtividade de grãos do milho

Spader

Vidal

2000

Planta daninha

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Relationships Between Length of the Actual and Effective Grain Filling Periods and the Grain Yield of Corn

Cited by 66 publications

References 0 publications

Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Effects of temperature changes on maize production in Mozambique

Interferência de Brachiaria plantaginea sobre características agronômicas, componentes do rendimento e produtividade de grãos do milho

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