通过不同浓度 CaCl_2、B_9和采前不同天数叶面喷施对月季切花-萨曼莎的正交组合处理,筛选出可使该切花瓶插寿命由5.5 d 延长到8.0 d 的最佳采前处理为0.1%CaCl_2+300mg/L B_9,于采前10 d 喷施,瓶插期生理指标测定显示,含 Ca^(2+)处理液...通过不同浓度 CaCl_2、B_9和采前不同天数叶面喷施对月季切花-萨曼莎的正交组合处理,筛选出可使该切花瓶插寿命由5.5 d 延长到8.0 d 的最佳采前处理为0.1%CaCl_2+300mg/L B_9,于采前10 d 喷施,瓶插期生理指标测定显示,含 Ca^(2+)处理液能增大月季切花的干鲜比,是延长切花瓶插寿命的原因之一。展开更多
Jelly seed, a physiological disorder in ‘Amrapali' mango fruit, is characterized by the excessive softening of pulp around the stone in ripe fruits. The disorder is caused by the onset of germination associated e...Jelly seed, a physiological disorder in ‘Amrapali' mango fruit, is characterized by the excessive softening of pulp around the stone in ripe fruits. The disorder is caused by the onset of germination associated events in the seed of developing fruit due to decreased level of very-longchain fatty acids(VLCFAs) in seed. Field trials involving preharvest application of spray formulations on developing fruits, between 50% and 60%maturity, showed that formulation V(10 g·L^(-1) NaCl, 25 g·L^(-1) CaCl_2, 0.5 g·L^(-1) KCl, 0.01 g·L^(-1) H_3 BO_3, 0.01 g·L^(-1) Cu SO_4, 0.01 g·L^(-1) Zn SO_4,0.01 g·L^(-1) FeSO_4, 0.01 g·L^(-1) MnSO_4, and 0.002 g·L^(-1) EDTA) was the most effective in preventing the jelly seed disorder. Further studies to understand the mode of action of the formulation in controlling jelly seed development, revealed increased synthesis of VLCFAs in seed followed by the rapid production of ABA and germination-inhibiting phenolic acids, besides increased accumulation of calcium in seed. These factors acting in unison delayed seed germination and decreased the activities of pectinolytic enzymes in pulp to produce healthy fruits, free from jelly seed disorder.There was an increase of mineral nutrient content in pulp of treated healthy fruits. Thus, the study helped to develop a remedy to prevent jelly seed besides revealing the biochemical mechanism by which formulation V acted to produce ‘Amrapali' mango fruits free of jelly seed with improved nutritional quality.展开更多
文摘通过不同浓度 CaCl_2、B_9和采前不同天数叶面喷施对月季切花-萨曼莎的正交组合处理,筛选出可使该切花瓶插寿命由5.5 d 延长到8.0 d 的最佳采前处理为0.1%CaCl_2+300mg/L B_9,于采前10 d 喷施,瓶插期生理指标测定显示,含 Ca^(2+)处理液能增大月季切花的干鲜比,是延长切花瓶插寿命的原因之一。
文摘Jelly seed, a physiological disorder in ‘Amrapali' mango fruit, is characterized by the excessive softening of pulp around the stone in ripe fruits. The disorder is caused by the onset of germination associated events in the seed of developing fruit due to decreased level of very-longchain fatty acids(VLCFAs) in seed. Field trials involving preharvest application of spray formulations on developing fruits, between 50% and 60%maturity, showed that formulation V(10 g·L^(-1) NaCl, 25 g·L^(-1) CaCl_2, 0.5 g·L^(-1) KCl, 0.01 g·L^(-1) H_3 BO_3, 0.01 g·L^(-1) Cu SO_4, 0.01 g·L^(-1) Zn SO_4,0.01 g·L^(-1) FeSO_4, 0.01 g·L^(-1) MnSO_4, and 0.002 g·L^(-1) EDTA) was the most effective in preventing the jelly seed disorder. Further studies to understand the mode of action of the formulation in controlling jelly seed development, revealed increased synthesis of VLCFAs in seed followed by the rapid production of ABA and germination-inhibiting phenolic acids, besides increased accumulation of calcium in seed. These factors acting in unison delayed seed germination and decreased the activities of pectinolytic enzymes in pulp to produce healthy fruits, free from jelly seed disorder.There was an increase of mineral nutrient content in pulp of treated healthy fruits. Thus, the study helped to develop a remedy to prevent jelly seed besides revealing the biochemical mechanism by which formulation V acted to produce ‘Amrapali' mango fruits free of jelly seed with improved nutritional quality.
