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对朋娜、纽荷尔、清家、丰脐果实纵横径定期田间测定 ,研究其生长发育规律及与气温、相对湿度、降雨量、日照的相关性。结果表明 :4个脐橙品种 (系 )果实纵横径在整个生长过程中均出现 3次生长高峰 ,呈单“S”形曲线增长 ,纽荷尔、丰脐出现高峰期比朋娜、清家推迟 5～ 10 d。 7月是果实生长的最大效能期。 4～ 10月果实净生长量与气温、相对湿度、降雨量的变化呈正相关 ,与气温、相对湿度达显著相关性 (P<0 .0 5)或极显著相关性 (P<0 .0 1) ,与降雨量未达显著相关性 (P>0 .0 5) ,说明脐橙园在不受干旱影响的情况下 ,气温、相对湿度是影响果实大小的主要因素。 4品系中 ,纽荷尔最优 ,表现果大 ,皮光滑 ,单果均重 2 2 2 .5g,10月 2 2日分析 ,全糖为 8.57% ,含酸量为1.0 3% ,Vc为 6 3.30 mg/ 10 0 ml,可溶性固形物为 12 %
The field experiments were conducted on the vertical and horizontal pathways of Pomona, Newhall, Qing and Feng-na fruits to study their growth and development and their relationship with temperature, relative humidity, rainfall and sunshine. The results showed that the vertical and horizontal diameters of four navel orange varieties all showed three growth peaks in the whole growing process, showing a single “S” shaped curve. ~ 10 d. July is the maximum performance period for fruit growth. From April to October, net fruit growth was positively correlated with temperature, relative humidity and rainfall, with significant correlation with temperature and relative humidity (P <0.05) or very significant correlation (P <0.01 ), And rainfall did not reach a significant correlation (P> 0.05), indicating that the umbilical orange garden in the absence of drought, the temperature and relative humidity is the main factor affecting the size of the fruit. 4 strain, the best Newhall, fruit large, smooth skin, single fruit weight 22.55g, analysis of October 22, the whole sugar was 8.57%, with an acid content of 1.03%, Vc of 6 3.30 mg / 10 ml, soluble solids 12%