影响大棚秋延后辣椒早春再生栽培产量的关键因子研究

Study on Key Factors Affecting Yield of Early Spring Regeneration Cultivation of Autumn Delayed Pepper in Greenhouse

为提高大棚秋延后辣椒的经济效益,在春节采摘结束后进行剪枝再生栽培研究。结果发现,剪枝时间X_(2)对产量Y无明显影响;剪枝高度X_(1)、株高X_(3)、单株产量X_(5)、单株结果数X_(6)等4个因子与产量Y正相关,达到极显著水平。经回归分析,Y=1.790+1.493X_(1)-0.280X_(1)^(3)的操作性较好,可通过剪枝高度X_(1)达到提前预测再生辣椒产量的目的;Y=-0.012+3.884X_(5)-0.020X_(5)^(3)和Y=-4.223+0.176X_(6)-1.237E^(-5)X_(6)^(3)在田间长势整齐度好、已大量结果时估测准确度较高,可用于再生辣椒盛采期总产量的估算。结果表明,剪枝高度X_(1)、单株产量X_(5)、单株结果数X_(6)等3个因子为影响大棚秋延后辣椒早春再生栽培产量的关键因子。

In order to improve the economic benefit of autumn delayed pepper in greenhouses,the pruning and regeneration cultivation was studied at the end of harvest after Spring Festival.The results showed that pruning time X_(2) had no significant effect on yield Y.Four factors(pruning height X_(1),plant height X_(3),yield per plant X_(5),number of fruit per plant X_(6))were positively correlated with yield Y,reaching extremely significant level.The regression analysis showed that Y=1.790+1.493X_(1)-0.280X_(1)^(3) had better operability,and could predict the yield of regenerated pepper in advance by using the pruning height X_(1).Y=-0.012+3.884X_(5)-0.020X_(5)^(3) and Y=-4.223+0.176X_(6)-1.237E^(-5)X_(6)^(3) had high predicting accuracy under the condition of good uniformity of field growth at fruit setting stage,which could be used to estimate the total yield of regenerated pepper at peak harvest stage.The results showed that three factors,pruning height X_(1),yield per plant X_(5) and number of fruit per plant X_(6),were the key factors affecting the yield of early spring regeneration cultivation of autumn delayed pepper in greenhouse.