Breeding and Evaluation of a New-Bred Semi-Leafless Pea (<i>Pisum sativum</i> L.) Cultivar Longwan No. 6
2022
Xiaoming Yang | Zhiwen Gou | Zhendong Zhu | Chang Wang | Lijuan Zhang | Gengmei Min
The pea (<i>Pisum sativum</i> L.) is an excellent protein source for livestock and human nutrition. However, its growth is hampered by several factors including powdery mildew (<i>Erysiphe pisi</i> DC) and lodging in irrigation areas. These limitations may be solved through combining a Canada powdery mildew-resistant pea (Mp1807) with green cotyledon cultivar (Graf) by means of sexual hybridization. A bred semi-leafless pea, cultivar Longwan No. 6, was selected and evaluated in multiple ecological zones to investigate and evaluate high-yield, adaptability, and resistance to root rot (<i>Aphanomyces euteiches</i> Drechs. f. sp. <i>pisi</i>) and powdery mildew from 2012 to 2014. The results revealed that Longwan No. 6 was characterized by lodging resistance and moderate powdery mildew resistance. The average grain yield of Longwan No. 6 is 2855.3 kg/hm<sup>2</sup> in spring sowing and is increased by 18.4% compared to the control cultivar (Longwan No. 1). The average grain yield of Longwan No. 6 is 2349.9 kg/hm<sup>2</sup> in winter sowing and is increased by 12.8% when compared to the control cultivar. The results indicated that Longwan No. 6 has a greater potential to increase yield and wide adaptability. Adopting the Longwan No. 6 pea cultivar contributes to improvements in pea production in irrigation areas.
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