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2013全国植物生物学大会

作者： JIANG Qi DING Yanfeng TIAN Xiaoya XIONG Ruiheng WANG Qiangsheng College of Agriculture Nanjing Agricultural University

Panicle nitrogen(N) fertilizer played an important role in rice grain *** this study,two rice cultivars,Ningjing 3 # and Changyou 3 # were used,and the contents of hormones in superior and infe

关键词： panicle nitrogen fertilizer superior spikelets inferior spikelets grain filling hormone

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Environmental Factors Undermine Genetic Expression of Tiller Dynamics in Wild Rice <i>Oryza nivara</i>and <i>Oryza rufipogon</i>

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American Journal of Plant Sciences 2014年第18期5卷 2617-2622页

作者： Ekamber Kariali School of Life Sciences Sambalpur University Sambalpur India

Tillering is a principal trait for the study of branching and production of more number of panicles for increased grain production in many cereal crops. Most of the semi-dwarf high yielding rice cultivars exhibit a remarkable degree of stability with respect to their tillering ability and maintain almost a constant tiller number which is genetically fixed for a particular cultivar. However, tiller production in wild species of rice is largely determined by environmental parameters, which supersede genetic features for expression of complete tillering ability. Two species of wild rice like Oryza nivara and Oryza rufipogon were tested for influence of manipulated growing conditions on tiller dynamics by comparing their growth in natural habitats and cemented pots filled with manure added soil. The results revealed a significant enhancement in the number of tiller production as well as biomass accumulation of each tiller with more grain yield in the cultivated conditions in both the species in comparison to the wild situations. The dryland inhabitant O. nivara became mono-tillering and deep water species O. rufipogon produced as many as five tillers with relatively lesser grain yield in their natural environments compared to their cultivated counterparts. From these observations, it is concluded that expression of genetic potential for tiller production is amenable to fluctuation of environmental factors in the wild species of rice and their capacity for adaption to inclement growth conditions.

关键词： Oryza nivara Oryza rufipogon Tillering spikelets

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Effects of Tianda 2116 Plant Growth Regulator on Growth and Yield of Winter Wheat (Triticum aestivum L.)

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American Journal of Plant Sciences 2016年第2期7卷 326-332页

作者： B. T. Manenji H. Mushipe I. Chagonda M. T. Mabarani M. Chandiposha Department of Agronomy Faculty of Natural Resources Management and Agriculture Midlands State University Gweru Zimbabwe

To achieve optimum yield of wheat, supplementation of soil and foliar applied fertilizers with plant growth regulators is vital to assure effective assimilation of nutrients by plants. A trial was conducted at Gwebi Agricultural College Farm in Mashonaland West Province of Zimbabwe, during the 2012 winter wheat season (May to August), to evaluate the effects of differing times of application of Tianda 2116 plant growth regulator on the growth and yield of wheat (variety SC Sekuru). The trial was laid out in a Randomized Complete Block Design with three replications. The treatments were: Tianda 2116 applied at the following weeks after planting (WAP): 2 WAP, 3 WAP, 4 WAP, 5 WAP, 6 WAP, 14 WAP and no Tianda 2116 applied (control). No significant differences (P > 0.05) were noted among treatments for mean number of tillers per plant and mean number of spikes per plant. Application of Tianda 2116 at 2 and 3 WAP delayed flowering and physiological maturity. Early application of Tianda 2116 increased the number of spikelets per spike, thousand grain weight and grain yield. Conclusively, Tianda 2116 applied 2 or 3 WAP is effective in reducing growth while enhancing yield parameters in wheat production.

关键词： Tianda 2116 Plant Growth Regulator Spike spikelets Growth Parameters

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Foliar Application of Micronutrients Enhances Wheat Growth, Yield and Related Attributes

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American Journal of Plant Sciences 2015年第7期6卷 864-869页

作者： Muhammad Zain Imran Khan Rashid Waseem Khan Qadri Umair Ashraf Sajid Hussain Sajid Minhas Asif Siddiquei Muhammad Muzammil Jahangir Mohsin Bashir Department of Agronomy University of Agriculture Faisalabad Pakistan Institute of Horticultural Sciences University of Agriculture Faisalabad Pakistan Department of Crop Science and Technology College of Agriculture South China Agricultural University Guangzhou China

Wheat is one of the most essential foods in the world. To increase its productivity, nutrient management is one of the most important factors. To assess the possible role of micronutrients in improving wheat yield, an experiment was conducted to evaluate the wheat performance by foliar application of micronutrients. Treatments consist of T1 = No spray, T2 = Spraying plants with tube well water (control), T3 = Spraying plants with 1.6 kg FeSO4/100 L water/acre, T4 = Spraying plants with 3 kg ZnSO4 (21%)/100 L water/acre, T5 = Spraying plants with 1 kg MnSO4/100 L water/acre, T6 = Spraying plants with (FeSO4 + MnSO4), T7 = Spraying plants with (FeSO4 + ZnSO4), T8 = Spraying plants with (ZnSO4 + MnSO4), and T9 = Spraying plants with (FeSO4 + ZnSO4 + MnSO4). Results showed that foliar application of micronutrients substantially improved plant height, spike length cm, spikelets/spike, grains/spike, test weight, Tillers m-2, grain and biological as well as harvest index of wheat. Among treatments, foliar application of FeSO4 + ZnSO4 + MnSO4 remained comparatively better regarding yield related attributes of

关键词： Micronutrients Growth spikelets Yield Wheat

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