A New Summer Squash F1 Hybrid with High Resistance to ZYMV—‘Jinghu CRV4’
LI Hai-Zhen, ZHANG Guo-Yu, ZHANG Fan, JIA Chang-Cai, JIANG Li-Gang
〔Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Biology and
Genetic Improvement of Horticultural Crops （North China）, Ministry of Agriculture, Key Laboratory of Urban Agriculture
（North）, Ministry of Agriculture, Beijing 100097, China〕
Abstract：‘Jinghu CRV4’ is a new summer squash F1 hybrid bred by crossing inbred line‘ 08-19-15-29-18-20-58’ as female parent with‘ 06-2-6-38-15-26-18’ as male parent. It was developed by combining marker-assisted selection technology with traditional breeding methods. It is an early maturing variety with mid-vigorous plant growth，short nods and continuous fruit setting ability. Its fruit has glossy light green rind. The plant is of mid-tall cylinder shape with straight and equal size fruit. It is tolerant to high temperature and not easy to premature aging. It has high resistance to ZYMV（Zucchini yellow masaic vius） and powdery mildew. It is suitable to be cultivated in protected and open fields both in southern and northern China.
