Bohan Yan, Qianqian Luo

（Xinjiang Agricultural University） 

Abstract：

Reasonable regulation of light and temperature conditions during various growth stages of Fray grapes in a solar greenhouse requires temperature and light indicators such as suitable growth temperature range, effective accumulated temperature during growth period, and photosynthetically active radiation. However, there are few reports on this aspect of research. This study measured the temperature and light environmental factors during the growth and development stages of Fray grapes in the sunlight greenhouse and open field of Huangtian Farm in Hami. The results showed that the photosynthetically active radiation intensity at the indoor level during the germination and new growth stages of Fray grapes in the sunlight greenhouse in Hami area had exceeded the light saturation point of grape leaves. The light conditions in this area were not a limiting factor for early cultivation of grapes in the sunlight greenhouse. The lower temperature limits for the growth and development of Fray grapes in a solar greenhouse during the germination, germination, flowering, fruit enlargement, and color transformation stages are 11.0 ℃, 15.9 ℃, 18.4 ℃, 14.8 ℃, and 19.8 ℃, respectively. The above results can provide a basis for environmental management in the cultivation of Fray grapes in solar greenhouses.

Key Words：

grapes; sunlight greenhouse; lighting environment; effective accumulated temperature