摘要
在人工气候室中，研究了温度和光强对辣椒生殖器官脱落的影响。结果表明，“渝椒２号”和“湘研３号”在气候室处理１周中，低温（１５℃／８℃，昼／夜温）下的开花数分别仅为中温处理（２５℃／１５℃）的１８．７％和１３．３％，而落花率则增加５２．５％和４４．５％；高温（３５℃／２５℃）处理开花数减少，落蕾数增加了１９和６．６倍。田间观察８天表明，低温处理的植株落蕾数分别较中温处理增加１．９和３．７倍，高温处理则增加３．３和４．２倍。２个品种在弱光（５×１０￣３ｌｘ）下，开花数分别为中光（２×１０￣４ｌｘ）处理的４６．１％和７７．６％，落花率则增加３６．８％和２９．９％，落蕾数增加４．８和９倍。
A series of growth chamber experiments were conducted with two cultivars of pepperto determine the effects of impositlon of three temperature and two light intensities for oneweek on the reproductive organs abscission。 For cuItivar 'Yu-Jiao 2',and 'Xiang-Yan3' .under low temperature(LTR ,15℃day/8℃night)the number of flowers and thatpercentage of flower drop were l8.7%and l3.3%,1.5 and l.4 times that of intermediatetemperature(ITR,25℃/15℃),the number of flower bud abscission were 20 and 7.6times that of ITR under high temperature (HTR ,35 ℃/25℃).One week after tempera-ture test,the number of flower bud abscission under LTR and HTR were 2.9 and 5.3times that of ITR. Under low light intensity (5×10￣3lx),the number of flowers,flowerbud abscission and the percentage of flower drop for two cultivars were 4 6.1%and 77.6%.5.8 and l0 times,1.4 and l.3 times that of control(2×10￣4lx),respectively。
出处
《西南农业大学学报（自然科学版）》
CSCD
1995年第3期228-231,共4页
Journal of Southwest Agricultural University
关键词
辣椒
脱落
温度
光强
capsicum frutescens
luminous intensity measurement
temperature
abscission
