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首页> 外文期刊>Annals of Agricultural Research >ASSESSMENT OF MAIZE GENOTYPES UNDER TERMINAL DROUGHT
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ASSESSMENT OF MAIZE GENOTYPES UNDER TERMINAL DROUGHT

机译：干旱条件下玉米基因型的评估

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The single cross hybrids developed by crossing ten elite inbred lines with two drought tolerant exotic testers (viz. CML-341 and Pool 16 BN) in line x tester mating design, were evaluated along with parental lines and standard checks under rainfed (during kharif 2004); normal irrigation and terminal drought (during rabi 2004-05). Genotypes highly influenced by seasons and terminal moisture stress. Hybrids (F'_1s) exhibited higher grain yield, plant height and ear height along with earliness and narrow anthesis-silking interval (ASI) over parental lines under varying environments. The traits under investigation were controlled by additive and non-additive gene actions and thus could be improved through selection followed by hybridization. The good general combining inbreds with high per se performance for grain yield, earliness and various yield contributing traits were EI-569 in rainfed and EI-572 in irrigated, while EI-569 and EI-573 in terminal drought environments. Hybrids EI-570 x CML-341 EI-573 x Pool 16 BN EI-574 x Pool 16 BN and EI-578 x CML-341 under rainfed; EI-572 x CML-341 and EI-576 x CML-341 under irrigated and EI-571 x CML-341 and EI-569 x Pool 16 BN under terminal moisture stress, express superiority, since they exhibited higher estimates of per se performance, SCA effects, heterobeltiosis and economic heterosis for grain yield and its various attributes.
机译：通过将十个优良的自交系与两个耐旱的异国测试仪（即CML-341和Pool 16 BN）在x系测试仪配对设计中杂交而开发的单杂交种，连同亲本和在雨育条件下进行的标准检查（在2004年哈里夫期间）进行了评估）;正常灌溉和晚期干旱（狂犬病2004-05期间）。基因型受季节和最终水分胁迫的影响很大。在不同环境下，杂种（F'_1s）表现出较高的籽粒产量，株高和穗高以及早熟性和较窄的花药生穗间隔（ASI）。受研究的性状受加和非加性基因作用的控制，因此可以通过选择然后杂交来改善。具有良好本身就籽粒产量，早熟性和各种增产特性的优良性能的近交自交系，在雨育条件下为EI-569，在灌溉条件下为EI-572，而在极端干旱环境下为EI-569和EI-573。混合动力EI-570 x CML-341 EI-573 x 16BN池EI-574 x 16BN池和EI-578 x CML-341在雨水中;灌溉条件下的EI-572 x CML-341和EI-576 x CML-341以及终端水分胁迫下的EI-571 x CML-341和EI-569 x Pool 16 BN表现出优越性，因为它们表现出更高的本身性能估计，SCA效应，杂种优势和经济杂种优势对谷物产量及其各种属性的影响。

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