Singh Gurjeet, Singh Inderjit, Taggar Gaurav Kumar, Rani Upasana, Sharma Pankaj, Gupta Mamta, Singh Sarvjeet
Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004 India.
Physiol Mol Biol Plants. 2020 Jul;26(7):1399-1410. doi: 10.1007/s12298-020-00827-w. Epub 2020 Jun 5.
The study aimed at introgression of productivity enhancing traits and resistance to pod borer and Phytophthora stem blight from wild to cultivated pigeonpea through an inter-specific cross between (ICP 15683) and (ICPL 20329). Progenies derived from the direct segregating (without backcross) population and backcross population were evaluated for yield and yield contributing traits namely fruiting branches and pods plant and 100-seed weight. Introgressed progenies having higher fruiting branches, pods and yield plant compared to the cultivated parent were identified in both populations. A few progenies with significantly shorter plant height, early flowering and early maturity as compared to both cultivated and wild parents were also recovered in both populations. Progenies from both the populations were identified with higher resistance to pod borer and Phytophthora stem blight. However, some introgressed progenies having lower seed weight and seeds per pod were also recovered. The promising progenies are currently being used in the breeding programme to develop cultivars with improved productivity and resistance to pod borer and Phytophthora stem blight.
该研究旨在通过（ICP 15683）和（ICPL 20329）之间的种间杂交，将野生木豆中提高生产力的性状以及对豆荚螟和疫霉茎枯病的抗性导入栽培木豆。对直接分离（无回交）群体和回交群体的后代进行产量及产量构成性状评估，即果枝数、单株荚数和百粒重。在两个群体中均鉴定出与栽培亲本相比具有更高果枝数、荚数和单株产量的渐渗后代。在两个群体中还获得了一些与栽培亲本和野生亲本相比株高显著更矮、开花早且成熟早的后代。两个群体的后代均被鉴定出对豆荚螟和疫霉茎枯病具有更高抗性。然而，也获得了一些种子重量和每荚种子数较低的渐渗后代。目前正在利用这些有前景的后代开展育种计划，以培育出生产力提高且对豆荚螟和疫霉茎枯病具有抗性的品种。
