花针期灌水对花生植株生长发育及光合物质积累的影响

为了明确花针期灌水后不同品种花生植株生长发育、产量及构成因素的影响,以不同花生品种为材料,在花针期灌水后对不同器官的干物质积累进行了研究。结果表明,花针期灌水处理对不同花生品种不同农艺性状及产量影响不同,灌水处理下‘花育25号’的主茎高、侧枝长与其对照间差异不明显,但产量上差异明显;即‘花育25号’各性状和产量对灌水处理的适应性较好,‘花育20号’表现较差。各品种主茎高和侧枝长的生长发育状况可用Logistic方程很好的拟合,花针期灌水可使主茎高和侧枝长最大生长速率出现时间(Tm)均提前,主茎高Tm提前2~5天,侧枝长Tm提前3~7天;花针期灌水使‘花育22号’和‘花育25号’两品种主茎高的最大生长速率(Vm)分别提高21.29%、5.67%,侧枝长最大生长速率分别升高3.61%和5.42%,却使‘花育20号’主茎高和侧枝生长的最大生长速率(Vm)分别降低15.48%和21.81%。花针期灌水处理下各品种基部茎长和茎粗均于开花后20天的结荚期达峰值,‘花育25号’、‘花育20号’和‘花育22号’三品种基部茎长较对照分别提高0.30 cm、0.57 cm和0.46 cm,其基部茎粗分别提高18.33%、11.11%、10.34%。花针期灌水使各品种灌水生产效率明显提高,‘花育22号’和‘花育25号’灌水生产效率分别为25.26 kg/mm和22.6 kg/mm。无论是田间自然条件下还是花针期灌水处理,均以‘花育25号’产量最高,分别达4794.3 kg/hm2和5030.25 kg/hm2,‘花育25号’抗性和广适性能力均较强。

Effect of Irrigation on Peanut Plant Grows and Dry Matter Accumulation

In order to clarify different peanut varieties after irrigation at flower pin plant growth, yield and component factors in different peanut cultivars after irrigation at flower pin of dry matter accumulation in different organs were studied .The results showed that different irrigation treatments on different agronomic traits and yield.With the irrigation conditions,there was no significantly different between the 25th Huayu and its control;but thetraits and yield of 25th well, and poor performance on the 20th. Growth and development of all varieties of main stem and branch length of the available high Logistic equation fit well, after watering can flower stem and branch length high maximum growth rate occurs time (Tm) in advance, ahead of the main stem high Tm 2-5 days, Tm of the branch length advanced 3-7 days; irrigation makes Huayu 22 and spent two varieties of high fertility on the 25th main stem of the maximum growth rate after flowering (Vm) were increased by 21.29%, 5.67%, the largest growth rates of branch length increased 3.61% and 5.42%, while filling the flower stem high fertility on the 20th and collateral growth of the maximum growth rate (Vm) were reduced by 15.48% and 21.81%. Irrigation after flowering varieties under the base of each stem length and stem diameter were 20d after flowering pod up to the peak period, Huayu on the 25th, the 20th and Huayu Huayu 22 base stem length of 3 varieties were increased by 0.30cm , 0.57cm and 0.46cm, its basal stem diameter were increased 18.33%, 11.11%, 10.34%. After making all varieties of flower watering irrigation significantly improve production efficiency, Huayu Huayu 22 and 25 respectively, the productivity of irrigation 25.26kg/mm and 22.6kg/mm. Under field conditions, whether natural or irrigation treatment after flowering, are sterile flowers on the 25th highest yield, respectively 4794.3 Kg/hm2and 5030.25 Kg/hm2, Huayu 25 resistance and wide adaptability capabilities are stronger.