Physiological Mechanisms of Poor Grain Growth in Abnormally Early Ripening Wheat Grown in West Japan

Takahashi, Tadashi; Zhang, Li; Nakatsukasa, Masamichi; Kimura, Kouji; Kurashige, Hiroshi; Hirata, Toshiaki; Ariyoshi, Machiko

doi:10.1626/pps.12.278

Cited by 10 publications

(11 citation statements)

References 8 publications

(9 reference statements)

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“…The difference in grain filling among the cultivars could be accounted for by the difference in post-anthesis carbon assimilation and culm reserves remobilized to grains (Takahashi et al, 1993;Hossain et al, 2009). Carbon assimilation can be monitored by the changes in total dry mass (Hossain et al, 2009). The high yielding cultivars usually exhibited greater accumulation of TDM compared to low yielding ones (data not shown).…”

Section: Discussionmentioning

confidence: 94%

“…The assimilates for grain filling come from current photosynthesis and stored reserves in culm (Austin et al, 1980;Hossain et al, 2011). The difference in grain filling among the cultivars could be accounted for by the difference in post-anthesis carbon assimilation and culm reserves remobilized to grains (Takahashi et al, 1993;Hossain et al, 2009). Carbon assimilation can be monitored by the changes in total dry mass (Hossain et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…The assimilate for grain filling comes from current assimilation (and subsequent direct translocation to grains) and storage (reserve) pools in vegetative plant parts, especially in the culms (Schnyder, 1993). Watersoluble carbohydrates (WSCs) are considered as the main culm reserves, which may accumulate prior to anthesis and during the initial period of grain filling; and subsequently, they remobilize to developing grains (Hossain et al, 2009(Hossain et al, , 2010(Hossain et al, , 2011. Drought stress induces early leaf senescence which reduces or restricts the current assimilation (Ehdaie et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Screening of barley genotypes for drought tolerance based on culm reserves contribution to grain yield

Karim¹,

Islam²,

Rana³

et al. 2018

J Bangladesh Agric Univ

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Grain filling determines the grain weight, a major component of grain yield in cereals. Grain filling in barley depends on current assimilation and culm reserves. A pot experiment was conducted at the Grilled House, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during October 2015-May 2016 to study the grain filling patterns and the contributions of culm reserves to grain yield under drought stress. The experiment consisted of two factors-barley cultivars (six cultivars) and drought stress treatments (control and drought stress). Drought stress was imposed by limiting the irrigation during grain filling period. The tillers were sampled at anthesis, milk-ripe and maturity to determine the changes in dry weights of different parts, viz., leaf lamina, culm with sheath, spikes, and grains; and to examine the contribution of culm reserves to grain yield. The result in this experiment revealed that the grain yield was reduced by 5-25% due to drought stress. The reduction in grain yield was attributable to reduce number of grains per spike and lighter grain weight due to the stress. Drought stress drastically reduced the grain filling duration by about 30% and the stress induced early leaf senescence. Photosynthesis rate and leaf greenness were also reduced in stress. The stress altered the contribution of culm reserves, water soluble carbohydrates (WSCs) in culms to grains. At milk ripe stage, accumulation reached its peak. It accumulated 29.0 to 70.0 mg and from 15.8 to 40.6 mg culm −1 in control and stressed plants, respectively. The residual culm WSCs ranged from 3.5 to 11.2 mg and 1.0 to 3.5 mg culm −1 under control and stress conditions, respectively. The highest contribution of culm WSCs to grain yield was observed in BARI barley2 and the lowest was in BARI barley5 both in control and stress condition.. Among the cultivars studied, BARI barley2 produced higher yield with the higher contribution of culm reserves to grain yield under the drought stress.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Screening of barley genotypes for drought tolerance based on culm reserves contribution to grain yield

Karim¹,

Islam²,

Rana³

et al. 2018

J Bangladesh Agric Univ

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“…1). The difference in grain filling between the cultivars could be accounted for by the difference in post-anthesis carbon assimilation and culm reserves remobilized to grains (Takahashi et al, 1993;Hossain et al, 2009) and also by the difference in the duration of grain fi lling (Sharma, 1994). In the cultivar Haruyutaka, TDM production was increased only slightly during the grain fi lling period with earlier cessation than in Daichinominori in Yamaguchi (Fig.…”

Section: Discussionmentioning

confidence: 99%

Grain Filling Mechanisms in Two Wheat Cultivars, Haruyutaka and Daichinominori, grown in Western Japan and in Hokkaido

Takahashi

Jinno²,

Senju

et al. 2010

Plant Production Science

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“…The WSCs in tubers were extracted and measured using anthrone method (Yemm and Willis, 1954) as described in Hossain et al (2009Hossain et al ( , 2010Hossain et al ( and 2011. The fresh tubers were chopped and oven dried and then milled to rough powder.…”

Section: Estimation Of Water Soluble Carbohydrates (Wscs) In Potato Tmentioning

confidence: 99%

Screening of potato genotypes based on glucose and Asparagines content to minimize Acrylamide formation in potato chips and French fries

Zahan

Karim

Akter

et al. 2016

Res. Agric. Livest. Fish.

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Seven potato genotypes that are available in Bangladesh, were grown at the field laboratory under the Crop Botany Department, Bangladesh Agricultural University in 2014. Reducing sugars and free asparagine were determined at freshly harvested potato tubers and those after storing at 8 0 C for 8 months. There was no significant variation of asparagine content in all genotypes of freshly harvested tubers. But a significant difference was found in reducing sugar content. The lowest was in the samples of the genotypes Cardinal and Rumanapakri, and the highest in Hagrai. The variety Diamant appeared to contain the lowest amount of reducing sugars after 8 months storage. The results showed that freshly harvested Cardinal, Rumanapakri and Diamant after storage produced less amount of acrylamide after frying as potato chips or French fries. It may be concluded that screening potato genotypes primarily on their reducing sugar contents could be useful tool to minimize acrylamide formation in potato chips and French fries. Further investigation is needed to find out the factors affecting reducing sugar and asparagine content in potato tubers.

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Physiological Mechanisms of Poor Grain Growth in Abnormally Early Ripening Wheat Grown in West Japan

Cited by 10 publications

References 8 publications

Screening of barley genotypes for drought tolerance based on culm reserves contribution to grain yield

Screening of barley genotypes for drought tolerance based on culm reserves contribution to grain yield

Grain Filling Mechanisms in Two Wheat Cultivars, Haruyutaka and Daichinominori, grown in Western Japan and in Hokkaido

Screening of potato genotypes based on glucose and Asparagines content to minimize Acrylamide formation in potato chips and French fries

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