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首页> 外文期刊>African Journal of Food, Agriculture, Nutrition and Development >Seeding rate and genotype effects on agronomic performance and grain protein content of durum wheat ( Triticum turgidum L. Var. Durum ) in south-eastern Ethiopia
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Seeding rate and genotype effects on agronomic performance and grain protein content of durum wheat ( Triticum turgidum L. Var. Durum ) in south-eastern Ethiopia

机译：播种量和基因型对东南部埃塞俄比亚硬质小麦（Triticum turgidum L. Var。Durum）农艺性能和籽粒蛋白质含量的影响

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The use of optimum seeding rate for the genotype may enhance productivity and grain protein content of durum wheat. Therefore, an experiment was conducted at two locations in south-eastern Ethiopia during the main cropping season of 2008 with the objective of elucidating the effects of seeding rate and genotype on agronomic performance and grain protein content of the crop. The experiment consisted of factorial arrangements of four improved durum wheat genotypes and five seeding rates, which were laid out as a randomized complete block design with three replicates. Seeding rates significantly influenced agronomic performances including number of fertile spikes m-2, plant height, number of seeds spike-1, and grain yield. Number of fertile spikes m-2 was increased proportionally with the seeding rate and the highest number (382 spikes m-2) was recorded in the highest seeding rate of 200 kg ha-1. Inversely, the highest number of kernels spike-1 (29.8) was at the seeding rate of 100 kg ha-1. The highest grain yield (4341 kg ha-1) was obtained in response to seeding rate of 175 kg ha-1, which was in statistical parity with the yield obtained at the seeding rate of 150 kg ha-1. However, grain protein content was not influenced by the seeding rates. There were significant (P . 0.05) variations among the genotypes for all the agronomic traits measured. The largest number of fertile spikes m-2 was recorded for the genotypes Oda (360 spikes m-2) and Bakalcha (345 spikes m-2). Genotype Illani produced the longest spike (6.9 cm). Oda and Illani produced the highest numbers of seeds spike-1, 38.8 and 36.9, respectively. The number of fertile spikes m-2, number of seeds spike-2 and kernels weight significantly contributed grain yield. The genotypes had exhibited less variation for grain protein content. Except for grain yield and harvest index, seeding rate x genotype interaction had no significant effect on other agronomic traits. Highest grain yields of 4938 kg ha-1 and 4774 kg ha-1 were obtained from genotypes Ejersa and Bakalcha when sown at the seeding rate of 150 kg ha-1 and 175 kg ha-1, respectively. Grain protein response was significantly influenced by the interaction effect in which genotype Oda had the highest (12.9%) and lowest (10.5%) protein contents at the highest (200 kg ha-1) and lowest (100 kg ha-1) seeding rates, respectively.
机译：为该基因型使用最佳播种量可以提高硬粒小麦的生产力和籽粒蛋白质含量。因此，在2008年主要农作物季节期间，在埃塞俄比亚东南部的两个地方进行了一项试验，目的是阐明播种量和基因型对农艺性能和谷物蛋白质含量的影响。该实验由4种改良硬粒小麦基因型和5种播种率的因子安排组成，它们被安排为具有3个重复的随机完整块设计。播种率显着影响农艺表现，包括可育穗数m-2，株高，种子穗数1和谷物产量。可育穗数m-2与播种量成正比，最高记录数（382穗m-2）以最高播种量200 kg ha-1记录。相反，最高穗粒数1（29.8）是在100 kg ha-1的播种量下。响应175 kg ha-1的播种量，可获得最高的谷物产量（4341 kg ha-1），与以150 kg ha-1的播种量获得的单产具有统计学意义。但是，籽粒蛋白质含量不受播种率的影响。所有农艺性状的基因型之间存在显着差异（P = 0.05）。基因型Oda（360穗m-2）和Bakalcha（345穗m-2）记录了最多数量的可育穗m-2。基因型Illani产生的穗最长（6.9厘米）。 Oda和Illani分别产生最高数量的种子穗1、38.8和36.9。可育穗数m-2，种子穗数2和籽粒重量显着影响了籽粒的产量。基因型的谷物蛋白质含量变化较小。除籽粒产量和收获指数外，播种率×基因型互作对其他农艺性状无显着影响。当分别以150 kg ha-1和175 kg ha-1的播种量播种时，基因型Ejersa和Bakalcha的最高谷物产量为4938 kg ha-1和4774 kg ha-1。互作效应显着影响籽粒蛋白质反应，其中基因型Oda在最高（200 kg ha-1）和最低（100 kg ha-1）播种率下具有最高（12.9％）和最低（10.5％）蛋白质含量。 ， 分别。

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