Study On The Character Observation And Matching Techniques Of New Protected Nectarine Varieties ’luyou1’ And ’luyou2’

Taking the protected nectarine varieties ’Luyou 1’,’Luyou 2’ as test materials, this experiment observed the characteristics and studied the matching techniques, ’shuguang’,’zhongyou 4’, and ’zhongyou 5’ as the controls. The main results were as follows.1. The new earlier mature and higher sugar characteristics,’Luyou1’ was bred by Shandong Agrucultural University Laboratory of Protected Pomology, using ’Ruiguang 2’ as female parent, mixing pollen including ’Chunguang’,’Meiwei’ and ’Shuangfo’ as male parent. The chilling requirement of this variety was lower than control, of which the blossom bud was 490C.H, and leaf bud 478C.H. The tree vigor is balancing, self-fruitful, rose-red fruit surface, hard solute, good tolerant to estorage and transportation. Average single fruit weight was 147g and likely to reach the maximum height of 273g. Total soluble solid was 13.5%, fruit hardness is 9.3kg/cm. Fruit development period was about 73 d, and mature period was in the end of April. It is suitable to grow inside greenhouse in Shandong.2. The new earlier mature and higher sugar characteristics,’Luyou 2’ was bred by Shandong Agrucultural University Laboratory of Protected Pomology, using’Ruiguang 3’as female parent, mixing pollen including ’Chunguang’,’Meiwei’ and ’Shuangfo’ as male parent. The chilling requirement of this variety was lower, of which the blossom bud was 485C.H, and leaf bud 472 C.H. The tree vigor is balancing, self-fruitful, rose-red fruit surface, hard solute, good tolerant to storage and transportation. Average single fruit weight was 155g and largest 274g. Total soluble solid was 13.7%, fruit hardness is 8.8kg/cm2. Fruit development period was about 75 d, and mature period was in the end of April. It is suitable to grow inside greenhouse in Shandong.3.In Shandong, comprehensive characteristics of ’Luyou 1’ and ’Luyou 2’ were both better than ’Shuguang’,’Zhonyou 4’ and ’Zhongyou 5’, which with lower chilling requirement, fully red fruit color, faint scent, crispy and sweet.4. Summerising matching cultivatial techniques of high qualities and yield in ’Luyou 1’ and ’Luyou 2’ from varienties choose, facilities type, garden construction, growth and flower promotion, management before covering the greenhouse, artificial dormancy breaking, indoor management, over-summer, pest and disease control, harvest, classification and packing, etc. The new ’Thin Column type’ and matching prune techniques, which was suitable for close planting, simpler operation, labor saving and easy popularized.