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首页> 外文期刊>African Journal of Biotechnology >Grain yield, stem borer and disease resistance of new maize hybrids in Kenya
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Grain yield, stem borer and disease resistance of new maize hybrids in Kenya

机译：肯尼亚新玉米杂交种的产量，茎，和抗病性

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Evaluation of 30 maize hybrids for yield and resistance to stem borers and foliar diseases in four agro-ecologies in Kenya was conducted in 2009. There were significant differences among the hybrids in leaf damage, number of exit holes, tunnel length and grain yield in Kiboko. The maize hybrids CKPH08014, CKPH08025, and CKPH08026 showed the least leaf damage, exit holes and tunnel length, similar to the resistant check.? Although ten hybrids yielded over 8 t/ha, two hybrids, CKPH09001 and CKPH08033, gave the highest yield of 8.99 and 8.86 t/ha, respectively, in Kiboko. There were significant differences among the hybrids in resistance to leaf rust and maize streak virus in Kakamega. The intensity of foliar diseases was high in Kakamega compared to the other sites. All hybrids appeared resistant to the foliar diseases at Kakamega. On the average, the highest yield of the hybrids was recorded in Kiboko (7.5 t/ha) followed by Kakamega (6.1 t/ha), and the least at Embu (3.5 t/ha), and Mtwapa (3.14 t/ha). The performance of the hybrids varied from site to site, with CKPH09002 and CKPH09003 performing well at Mtwapa, CKPH09001 at Kiboko, CKPH08039 at Embu, CKPH 08002 and CKPH08010 at Kakamega.
机译：2009年对肯尼亚的四种农业生态系统中的30个玉米杂交种进行了产量，抗茎bore病和叶面病的评估。在Kiboko，杂交种在叶片损伤，出孔数量，隧道长度和籽粒产量方面存在显着差异。 。玉米杂交种CKPH08014，CKPH08025和CKPH08026的叶片损伤，出口孔和隧道长度最小，类似于抗性检查。尽管十个杂种的产量超过8吨/公顷，但两个杂种CKPH09001和CKPH08033的产量最高，分别为Kiboko，分别为8.99和8.86吨/公顷。在Kakamega中，杂交种对叶锈病和玉米条纹病毒的抗性存在显着差异。与其他地点相比，卡卡梅加的叶类疾病强度较高。在Kakamega，所有杂种都表现出对叶病的抗性。平均而言，杂交种的最高产量记录在奇博科（7.5吨/公顷），其次是卡卡梅加（6.1吨/公顷），最低的是安布（3.5吨/公顷）和姆特瓦帕（3.14吨/公顷）。 。杂种的性能因地点而异，其中CKPH09002和CKPH09003在Mtwapa，Kiboko的CKPH09001，Embu的CKPH08039，Kakamega的CKPH 08002和CKPH08010表现良好。

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