日光温室杏果实发育规律研究

对日光温室与露地栽培的金太阳杏果实生长发育规律进行了观察与分析。结果表明,日光温室栽培可使杏果实发育的第一速生期、第二速生期延长,果实发育的缓慢生长期缩短,整个生育期较露地栽培延长了15d;日光温室内金太阳杏第一速生期的生长速率显著低于露地,第二速生期的累积生长量显著高于露地;较低的夜间温度是造成温室内杏果实第一速生期较长、生长较慢以及果实个体较大的原因;日光温室内金太阳杏果实的横径、纵径与鲜果质量之间存在明显的乘幂回归关系(r=0.98**,r=0.99**);日光温室内金太阳杏鲜果质量与发育时间之间的关系符合Log istic生长曲线(r=-0.99**)。

Studies on growth and development of apricot fruit

Fruit development of "Gold sun" apricot was observed and analyzed in and out of the greenhouse in Yangling Shenfeng Company in 2004 to 2005.The results showed that:Under greenhouse cultivation conditions,the fruit development period was prolonged for 15 days in the first and the second quick growing periods.Under greenhouse cultivating conditions,growth ratio of the apricot in the first high-speed growing period was significantly smaller than that in open field.The accumulative growth of the apricot in the second high-speed growing period was more significant than that in open field.The lower temperature at night inside the greenhouse should be responsible for the prolonging of first high-speed growing period,the slower growth and the larger fruit size.Of greenhouse culture,vertical diameter,horizontal diameter and fresh weight of the apricot fruit were distinct regression relationships respectively(r=0.98~(**))(r=0.99~(**));Relationship between fresh weight and growth days of the apricot fruit in greenhouse conformed to Logistic curve(r=-0.99~(**)).