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To analyze the mechanism of damage to yield of maize by lodging, root lodging(RL) and stalk lodging(SL) were mechanically induced at four growth stages, and their effects on canopy architecture, dry m...
This research was conducted with three varieties (Asakazekomugi, Norin 61 and Norin 64) in Red Soil, Thick High-humic Andosol and Light-colored Andosol. In Red Soil the survival and grain yield of til...
The International Rice Research Institute (IRRI) has developed a new plant type (NPT) and F1 hybrids to further increase rice yield potential. In this study we compared yield and yield-related traits ...
A retrospective analysis of the physiological basis of genetic yield improvement should provide us a direction for future yield improvement. The objectives of the present study were to evaluate the ch...
The effect of nitrogen (N) application rates at active tillering and anthesis on grain yield and protein content of a bread wheat cultivar, ‘Minaminokaori’, was examined in the field study conducted i...
The influence of different transplanting times on the grain yield and palatability of rice were analyzed by meteorological factors. The prediction of optimum transplanting time for both grain yield an...
We examined the effects of seeding rate, 50 or 150 seeds m-2, nitrogen (N) application rate at active tillering and jointing, 4 and 2 g N m-2, respectively, or none, and N application rate at anthesis...
Doubled-haploid lines of wheat with deep and shallow root system, nine lines each, were grown in paddy fields. Grain yield of shallow-rooting 9 lines was higher than that of deep-rooting 9 lines, esp...
The objective of the present study was to determine the proper seeding time of different types of quinoa varieties for a high grain yield in the climatic conditions of Southern Kanto District of Japa...
Field studies were carried out at the Didactic and Experimental Farm in Swadzim near Poznań in the years 2004-2007 (52o26’ N; 16o45’ E). The experiment was carried out in a „split-plot” design w...
The aim of this research was to determine the influence of nitrogen fertilization doses and time of its application on the grain yield, yield components and grain quality of spring wheat cv. Nawra. T...
The aim of the studies conducted in the years 2000-2002 in Kruszyn Krajeński, in the vicinity of Bydgoszcz, was determining the changes in morphological features (the weight and length) of root system...

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