This study tested the hypothesis that the interaction between polyamines and ethylene may mediate the effects of soil drying on grain filling of rice (Oryza sativa L.). Two rice cultivars were pot grown. Three treatments, well-watered, moderate soil drying (MD), and severe soil drying (SD), were imposed from 8 d post-anthesis until maturity. The endosperm cell division rate, grain-filling rate,...

Rate and duration of individual grain growth determine final kernel weight and are influenced by environmental factors. The objectives of this research were to assess the effects of elevated CO2 and drought stress on the grain filling rate and duration, and the weight of individual kernels. Spring wheat (Triticum aestivum L.) was grown in a free air CO2 enrichment (FACE) system on the demonstra...

The current study was designed to investigate the best sowing method that encourages dry matter accumulation increase dryland wheat yield, grain quality, and protein content. Three different seeding methods were applied: (I) wide-space (WSS), (II) furrow sowing, (III) drill sowing. Two nitrogen levels, namely low (N1) high (N2), also applied, pure 150 kg ha−1 210 ha−1, respectively. Wide-space ...

to investigate the effects of supplementary irrigation and application of different compost levels on morphological traits, yield and yield components of two chickpea cultivars under dry land conditions, a field experiment was conducted at the research field in khoramabad, iran in 2009-2010. the experiment was split split plot based on randomized complete block design with four levels of irriga...

Grain filling during the linear phase contributes most of the dry matter accumulated in the maize kernel, which in turn determines the final grain yield. Endosperms and embryos of three elite maize hybrids (Zhengdan 958, Nongda 108, and Pioneer 335) were sampled 17, 22, 25, and 28 days after pollination, during the linear phase of grain filling, for proteomic analysis to explore the regulatory ...

Improvement in activation of Rubisco by Rubisco activase can potentially enhance CO2 assimilation and photosynthetic efficiency in plants. The three homoeologous copies of TaRca2-α were identified on chromosomes 4AL, 4BS and 4DS (TaRca2-α-4AL, TaRca2-α-4BS, and TaRca2-α-4DS) in bread wheat. Expression patterns of the three copies at heading (Z55), anthesis (Z67) and grain-filling (Z73) stages w...