Effect of different sowing times on the plant developmental parameters of wheat (Triticum aestivum L.)
Effect of different sowing times on the plant developmental parameters of wheat (Triticum aestivum L.)
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不同播期对小麦植株发育参数的影响
DOI：
10.1556/crc.2013.0064
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发表时间：
2014
影响因子：
1.6
通讯作者：
I. Karsai
中科院分区：
文献类型：
--
作者：
T. Kiss;K. Balla;J. Bányai;O. Veisz;I. Karsai
研究小麦的生育阶段和产量构成模式对于更好地理解小麦的适应性至关重要。我们的主要目的是进行详细的物候分析18个小麦基因型在三个播期，以确定播期对个人的物候期，产量构成因素的影响。播种期对茎开始密集伸长的影响最大。生长期的延长对主穗长和穗粒数有促进作用，但对千粒重和穗粒数无影响。第一节出现和开始密集的茎伸长之间的时间对生殖分蘖的数量有显着的影响。在第二个茎伸长期，靴子期至抽穗期与每穗小穗数呈极显著正相关（R2 = 0.191）。对产量构成因素的双向方差分析表明，播期对物候期的影响较弱，而对形态和发育参数的影响较小。Ppd-D1基因的不敏感等位基因缩短了秋播和春播的第一节出现和抽穗所需时间。
Studies on plant development phases and yield component patterns of wheat are essential for a better understanding of adaptation in wheat. Our main aim was to carry out detailed phenological analyses of 18 wheat genotypes in three sowing times for determining the effect of sowing date on individual phenophases, and yield components. Sowing date had the single greatest effect on the start of intensive stem elongation. The longer vegetation period had a favourable effect on main spike length and on the spikelet number per spike, but had no influence on thousand-kernel weight and grain number per spike. The time between the first node appearance and start of intensive stem elongation had a significant effect on the number of reproductive tillers. A close association (R2 = 0.191) was observed during the second phase of intensive stem elongation between the boot stage-to-heading interval and the number of spikelets per spike. Two-way analysis of variance on the yield components showed that the sowing date, as a main factor, had a weaker effect on the phenophases than on morphological and developmental parameters. The insensitive allele of the Ppd-D1 gene shortened the time required for first node appearance and heading both in autumn and spring sowing.