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首页> 外文期刊>Advancements in Life Sciences >Heritability, heterosis and heterobeltiosis studies for morphological traits of maize (Zea mays L.) seedlings
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Heritability, heterosis and heterobeltiosis studies for morphological traits of maize (Zea mays L.) seedlings

机译：玉米幼苗形态性状的遗传力，杂种优势和杂种优势研究

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Background: Maize is one of most important cereal crop in world after wheat and rice. It isgrown in Pakistan as a major cash crop cultivation in the area of 1083 thousand hectaresproducing 3990 thousand tones. Maize is dual propose crop it is used as feed for livestockand food for human. It is also used as a raw material in textile, food and medicine industries.The present study was conducted to evaluate parents and F1 hybrids of maize for seedlingtraits including heritability, heterosis and heterobelteiosis.Methodology: The genetic material was comprised of twelve parents and including their 36F1 hybrids. The parents and F1 hybrids were sown in the iron treys filled with sand in threereplications following completely randomized design. The data was recorded for fresh rootlength, fresh shoot length, fresh root-to-shoot length ratio, fresh root weight, fresh shootweight and fresh root-to-shoot weight ratio. The data was subjected for analysis genotypicand phenotypic coefficients of variance. The genetic advance was calculated by usingFalconer (1989) formula.Results: The average batter performance was given by B-336, EV-347, EV-1097Q and B-327. The F1 hybrids, EV-1097Q × EV-347, EV-1097Q × EV-340, Raka-poshi × EV-347, B-327 × B-316 and Sh-139 × EV-347 showed higher values of heterosis and heterobeltiosis forrespected studied traits of maize seedlings.Conclusion: In this study, it is concluded that the F1 hybrids, EV-1097Q x EV-347, EV-1097Q x EV-340, Raka-poshi x EV-347, B-327 x B-316 and Sh-139 x EV-347 may be usedas higher yield maize hybrids and parents EV-347, EV-1097Q, B-327 and B-316 may be usedto develop higher yield maize hybrids following heterosis breeding scheme.
机译：背景：玉米是仅次于小麦和水稻的世界上最重要的谷物作物之一。它在巴基斯坦作为主要的经济作物种植而种植，占地108.3万公顷，产量399万吨。玉米是双重作物，用作牲畜饲料和人类食品。本研究旨在评估玉米亲本和F1代杂种的幼苗性状，包括遗传力，杂种优势和异型骨病。方法：遗传材料由十二个亲本组成，包括他们的36F1混合动力车按照完全随机的设计，将亲本和F1杂种播种在装满沙子的铁格子中，进行三次重复。记录有关鲜根长，鲜枝长，鲜根与茎长之比，鲜根重，鲜枝重和鲜根与茎长之比的数据。对数据进行分析的基因型和表型变异系数。使用Falconer（1989）公式计算遗传进展。结果：B-336，EV-347，EV-1097Q和B-327给出了平均面糊表现。 F1混合动力车EV-1097Q×EV-347，EV-1097Q×EV-340，Raka-poshi×EV-347，B-327×B-316和Sh-139×EV-347显示出更高的杂种优势和杂种优势结论：本研究得出的结论是，F1杂种EV-1097Q x EV-347，EV-1097Q x EV-340，Raka-poshi x EV-347，B-327 x B -316和Sh-139 x EV-347可以用作高产玉米杂交种，而亲本EV-347，EV-1097Q，B-327和B-316可以用于按照杂种优势育种计划开发高产玉米杂交种。

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