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在西亚和北非的冬天,通常都是在大麦的生长早期进行放牧,然后再让其恢复产生籽粒。本文报道了培育两用大麦基因型的计划执行情况。这种两用大麦基因型在生长早期放牧时具有高的牧草产量,放牧后的籽粒产量和茎秆产量也均高。试验选择了上述的基因型进行了有关特性的鉴定,并用割草机去叶模拟了放牧。如所预料,未模拟放牧的籽粒产量与模拟放牧的耔粒产量相关性很弱.本文报道了鉴定出来的一些适于用作两用的大麦品系,以及其中表现最有希望的两个系.试验表明,抽穗和成熟期是影响产量的主要因子,而分蘖数、穗数和株高韭非重要因素。本试验所用的方法可能有些偏差。本文还讨论了模拟放牧的优点。
In winter in West Asia and North Africa, grazing usually takes place early in the barley’s growth before it is resumed to produce grain. This article reports on the planned implementation of a dual-use barley genotype. This dual-use barley genotype has high pasture yields during early-growing grazing and high grain yield and stem yield after grazing. The above-mentioned genotypes were selected for the identification of the relevant traits and mowing was used to simulate grazing. As expected, the correlation between the grain yield of unmoderated grazing and the grain yield of mock grazing was very weak, and some of the identified barley lines suitable for dual use and the two most promising ones were identified. Tests showed that heading and maturity were the main factors affecting the yield, while the number of tillers, spikes and non-important factors Leek. The method used in this experiment may be somewhat biased. This article also discusses the advantages of simulating grazing.