Poor milling and grain appearance is a common feature of locally produced rice (Oryza sativa L.) in West Africa. Development of genotypes with high yield and uniform milled grain size will enhance the market for the locally produced rice. One hundred rice accessions were evaluated to assess genetic variability, heritability and correlations for 11 milling and appearance quality traits and grain yield. The field was laid as a 10 × 10 alpha lattice design with three replications following standard cultivation practices. ANOVA revealed significant differences for the traits studied. The genotypic and environmental variances showed significant differences for all characters studied. Phenotypic coefficient of variation was greater than its corresponding genotypic coefficient of variation for each studied trait. Heritability at broad-sense varied from 14.1% for milling degree to 73.8% for milled grain length-to-width ratio (L/W). Genetic advance as percent of mean ranged from 2.2% for brown rice recovery to 129.6% for percentage of grain with chalkiness (PGWC). In general, genotypic correlations ranged higher than their corresponding phenotypic correlations. Brown rice recovery had significant positive phenotypic and genotypic correlations with milling recovery and head rice recovery. Consequently, brown rice recovery, milling recovery and L/W could be used as selection criteria for the improvement of head rice recovery. Genotypes BETIA and CRI-AMANKWATIA had the desirable PGWC and degree of chalkiness, therefore, they are recommended for the improvement of high yielding varieties with high amount of chalkiness.

中文翻译：

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某些水稻品种（Oryza sativa L.）的遗传变异性，遗传力以及制粉和籽粒外观品质的相关性。

差研磨和谷粒外观是当地生产大米（的共同特征稻L.）在西非。发展高产和均一的碾米粒度的基因型将扩大本地生产的稻米的市场。对一百份水稻品种进行了评估，以评估11种碾磨和外观品质性状以及籽粒产量的遗传变异性，遗传力和相关性。该田地按照10×10α晶格设计铺设，并按照标准耕作方法进行了三次重复。方差分析显示所研究的性状存在显着差异。基因型和环境差异显示所有研究特征的显着差异。对于每个研究的性状，表型变异系数均大于其相应的基因型变异系数。广义上的遗传力从碾磨度的14.1％变化到碾磨的长宽比（L / W）的73.8％。遗传进步的平均值从糙米恢复的2.2％到白垩化谷物（PGWC）的129.6％不等。通常，基因型相关性的范围高于其相应的表型相关性。糙米回收率与制粉回收率和糙米回收率具有显着的正表型和基因型正相关。因此，糙米回收率，碾米回收率和L / W可以用作改善原稻回收率的选择标准。基因型BETIA和CRI-AMANKWATIA具有理想的PGWC和白垩度，因此，建议将其用于改良具有高白垩度的高产品种。基因型相关性的范围高于其相应的表型相关性。糙米回收率与制粉回收率和糙米回收率之间具有显着的正表型和基因型相关性。因此，糙米回收率，碾米回收率和L / W可以用作改善原稻回收率的选择标准。基因型BETIA和CRI-AMANKWATIA具有理想的PGWC和白垩度，因此，建议将其用于改良具有高白垩度的高产品种。基因型相关性的范围高于其相应的表型相关性。糙米回收率与制粉回收率和糙米回收率具有显着的正表型和基因型正相关。因此，糙米回收率，碾米回收率和L / W可以用作改善原稻回收率的选择标准。基因型BETIA和CRI-AMANKWATIA具有理想的PGWC和白垩度，因此，建议将其用于改良具有高白垩度的高产品种。碾米回收率和L / W可用作提高稻米回收率的选择标准。基因型BETIA和CRI-AMANKWATIA具有理想的PGWC和白垩度，因此，建议将其用于改良具有高白垩度的高产品种。碾米回收率和L / W可用作提高稻米回收率的选择标准。基因型BETIA和CRI-AMANKWATIA具有理想的PGWC和白垩化程度，因此，建议将其用于改良具有高白垩度的高产品种。