The effects of different treatments on cross compatibility in distant hybridization werestudied in 69 cross combinations among 9 cultivars of stone fruits. The results showedthat the setting percentage in balloon stag...The effects of different treatments on cross compatibility in distant hybridization werestudied in 69 cross combinations among 9 cultivars of stone fruits. The results showedthat the setting percentage in balloon stage was obviously higher than that in earlyblooming stage. The differences of fruit set between positive and reverse crosses weresignificant. Female parent affected cross compatibility more remarkably than male parentin distant hybridization. The appropriate electrostatic field, He-Ne laser combinedtreatment with 60Co γ-ray and He-Ne laser could improve the pollen germination rate invitro effectively, the fruit set percentage was higher than control, while 60Co γ-raytreatment reduced the pollen germination rate in vitro, and the fruit set percentageobtained by distant hybridization was lower than control.展开更多
<span>Total crop load has an inverse relationship with fruit size, while larger fruit size is often demanded by the peach and nectarine markets. Hand-thinning is extremely expensive, and thus, crop load adjustme...<span>Total crop load has an inverse relationship with fruit size, while larger fruit size is often demanded by the peach and nectarine markets. Hand-thinning is extremely expensive, and thus, crop load adjustment, using blossom thinners is a crucial practice to ensure production of commercially acceptable fruit size and yield efficiency in stone fruit. In this study, the influence of branched secondary alcohol ethoxylate (Tergitol TMN-6) and/or ammonium thiosulfate (ATS), Crocker Fish Oil</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span>(FO), and a mixture of calcium polysulfides and thiosulfate (lime sulfur) on fruit set and quality attributes in peaches (</span><i><span>Prunus</span></i><span> <i>persica</i></span><span>) </span><span>and nectarines (</span><i><span>P</span></i><span><span>. </span><i><span>persica</span></i></span><span> var. </span><i><span>nectarina</span></i><span>) were studied. All blossom thinners reduced fruit set in “Summer Lady” peach in both 2016 and 2017. Fruit sets in “Summer Lady” peach trees </span><span>with a double application of </span><span><span>Tergitol TMN-6 at the rate of 7.5 or 10 mL</span><span></span> <span>·</span><span></span><span></span><span></span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span>, each rate applied at 40% and 80% bloom, were lower than those receiving the same rates of this chemical only at 80% bloom, but they were similar to those receiving a single Tergitol TMN-6 spray at 15 mL</span><span>·</span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span> at 80% or 100% bloom. “Summer Lady” peach trees receiving FO at 20 mL</span><span>·</span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span> plus lime sulfur at 25 mL</span><span style="color:#4F4F4F;">·</span><span>L</span><span style="color:#4展开更多
文摘The effects of different treatments on cross compatibility in distant hybridization werestudied in 69 cross combinations among 9 cultivars of stone fruits. The results showedthat the setting percentage in balloon stage was obviously higher than that in earlyblooming stage. The differences of fruit set between positive and reverse crosses weresignificant. Female parent affected cross compatibility more remarkably than male parentin distant hybridization. The appropriate electrostatic field, He-Ne laser combinedtreatment with 60Co γ-ray and He-Ne laser could improve the pollen germination rate invitro effectively, the fruit set percentage was higher than control, while 60Co γ-raytreatment reduced the pollen germination rate in vitro, and the fruit set percentageobtained by distant hybridization was lower than control.
文摘<span>Total crop load has an inverse relationship with fruit size, while larger fruit size is often demanded by the peach and nectarine markets. Hand-thinning is extremely expensive, and thus, crop load adjustment, using blossom thinners is a crucial practice to ensure production of commercially acceptable fruit size and yield efficiency in stone fruit. In this study, the influence of branched secondary alcohol ethoxylate (Tergitol TMN-6) and/or ammonium thiosulfate (ATS), Crocker Fish Oil</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span>(FO), and a mixture of calcium polysulfides and thiosulfate (lime sulfur) on fruit set and quality attributes in peaches (</span><i><span>Prunus</span></i><span> <i>persica</i></span><span>) </span><span>and nectarines (</span><i><span>P</span></i><span><span>. </span><i><span>persica</span></i></span><span> var. </span><i><span>nectarina</span></i><span>) were studied. All blossom thinners reduced fruit set in “Summer Lady” peach in both 2016 and 2017. Fruit sets in “Summer Lady” peach trees </span><span>with a double application of </span><span><span>Tergitol TMN-6 at the rate of 7.5 or 10 mL</span><span></span> <span>·</span><span></span><span></span><span></span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span>, each rate applied at 40% and 80% bloom, were lower than those receiving the same rates of this chemical only at 80% bloom, but they were similar to those receiving a single Tergitol TMN-6 spray at 15 mL</span><span>·</span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span> at 80% or 100% bloom. “Summer Lady” peach trees receiving FO at 20 mL</span><span>·</span><span>L</span><span style="color:#4F4F4F;">¯</span><span></span></span><sup><span>1</span></sup><span><span> plus lime sulfur at 25 mL</span><span style="color:#4F4F4F;">·</span><span>L</span><span style="color:#4
