一、试验本试验分为两部分。第一部分为各种割制对无性系 WR101的干胶含量和胶乳粘度的影响。设7个处理,即:A=对照(不刺激),s/2·d/2割制;B=10%乙烯利,s/2·d/2割制;C=10%乙烯利,s/2·d/3割制;D=10%乙烯利,s/2·d/4割制;E=1%酸当量的2,4—滴,s/2·d/2割制;F=1%酸当量的2,4—滴,s/2·d/3割制;G=1%酸当量的2,4—滴,s/2·d/4割制。第二部分为乙烯利刺激对 PR228,AV335,GT1和 WR101等的胶乳和生胶性质的影响。A=对照(不 First, the test This test is divided into two parts. The first part is the effect of various cutting on the dry content and latex viscosity of clones WR101. A = control (no stimulation), s / 2 · d / 2 chopping; B = 10% ethephon, s / 2 · d / 2 chopping; C = 10% ethephon, s / 2 · d / 3 chopping; D = 10% ethephon, s / 2 · d / 4 chopping; E = 1, 2% acid equivalent of 2,4- = 1% acid equivalent of 2,4-D, s / 2 · d / 3 cleavage; G = 1, 2% acid equivalent of 2,4-D, s / 2 · d / 4 cleavage. The second part is the effect of ethephon on the properties of latex and gelatin of PR228, AV335, GT1 and WR101. A = control (no