Low genetic diversity acts as a major bottleneck in garden pea breeding, and diverse parents are required to generate new genetic material. The diversity of parents utilized in hybridization programme was ascertained following simple sequence repeats (SSR) markers. Thirty-six homozygous F7 progenies were isolated from three intervarietal crosses through shuttle breeding programme over a period of 6 years (2009–2014). Two experiments were conducted for two consecutive years 2014/15 and 2015/16, for evaluating the agronomic performance of progenies along with four commercial control cultivars. Analysis of variance (ANOVA) revealed that genotype, growing year and their interaction had significant effects on most of the traits. Line ‘DPP-SP-6’ recorded significantly higher pod yield/plant in comparison to all other genotypes in 2014/15, 2015/16 and for pooled over years. In addition, ‘DPP-SP-22’, ‘DPP-SP-7’ and ‘DPP-SP-17’ also performed statistically at par with best-performing check ‘Pb-89’ during both the years. These superior lines, in general, showed better pod filling, green pod colour, high shelling, sweetness and resistance to powdery mildew disease. These superior progenies could act as an alternative to the popular check varieties after their exhaustive evaluation over environments.

中文翻译：

---

印度喜马拉雅西北部条件下新分离的品种间豌豆（Pisum sativum L.）后代（F7）

低遗传多样性是豌豆育种的主要瓶颈，需要多样化的父母来产生新的遗传物质。根据简单序列重复 (SSR) 标记确定杂交程序中使用的亲本的多样性。三十六纯合F7在 6 年（2009-2014 年）期间，通过穿梭育种计划从三个品种间杂交中分离出后代。2014/15 和 2015/16 连续两年进行了两次实验，以评估后代和四个商业对照品种的农艺性能。方差分析（ANOVA）显示，基因型、生长年份及其相互作用对大多数性状有显着影响。与 2014/15、2015/16 年度和多年汇总的所有其他基因型相比，“DPP-SP-6”系记录的每株豆荚产量显着提高。此外，“DPP-SP-22”、“DPP-SP-7”和“DPP-SP-17”在统计上的表现也与这两年表现最好的检查“Pb-89”相当。这些优良品系总体上表现出更好的豆荚填充、绿色豆荚颜色、高脱壳、甜味和抗白粉病病害。在对环境进行详尽评估后，这些优秀的后代可以作为流行的检查品种的替代品。