沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2011年
3期
59-62
,共4页
刘立宏%陈丛敏%邹陈%吉春容%李新建
劉立宏%陳叢敏%鄒陳%吉春容%李新建
류립굉%진총민%추진%길춘용%리신건
棉花%延迟型冷害%积温%日照时数%产量
棉花%延遲型冷害%積溫%日照時數%產量
면화%연지형냉해%적온%일조시수%산량
cotton%delayed cool injury%accumulated temperature%sunshine hours%yield
根据2007—2008年棉花延迟型冷害的试验结果,统计分析日照、积温对产量的影响。结果表明,光温与产量有良好的线性关系,产量随积温和日照时数减少而减少的趋势明显。其中现蕾—吐絮阶段≥20℃积温与日照不足导致的减产幅度大于其它生育时段和≥15℃、≥10℃两种积温及日照不足发生的冷害。≥20℃积温的变化可作为秋季延迟型冷害的重要热量指标。
根據2007—2008年棉花延遲型冷害的試驗結果,統計分析日照、積溫對產量的影響。結果錶明,光溫與產量有良好的線性關繫,產量隨積溫和日照時數減少而減少的趨勢明顯。其中現蕾—吐絮階段≥20℃積溫與日照不足導緻的減產幅度大于其它生育時段和≥15℃、≥10℃兩種積溫及日照不足髮生的冷害。≥20℃積溫的變化可作為鞦季延遲型冷害的重要熱量指標。
근거2007—2008년면화연지형냉해적시험결과,통계분석일조、적온대산량적영향。결과표명,광온여산량유량호적선성관계,산량수적온화일조시수감소이감소적추세명현。기중현뢰—토서계단≥20℃적온여일조불족도치적감산폭도대우기타생육시단화≥15℃、≥10℃량충적온급일조불족발생적냉해。≥20℃적온적변화가작위추계연지형냉해적중요열량지표。
According to the study on cotton delayed cool injury in southern Xinjiang,this paper studied the effects of air temperature and sunshine duration on cotton yield in 2007-2008.The result showed that cotton yield increased with increasing accumulated temperature and duration of sunshine.The yield reduction resulted by the lack of the accumulated temperatures ≥20 ℃ and duration of sunshine in bud and boll opening periods was more than that in other growth birth,and more than that resulted by the insufficient accumulated temperatures≥10 ℃,≥15 ℃ and sunshine.Therefore,the annual accumulated temperatures ≥20 ℃could be taken as an important index in assessment of autumn delayed cool injury in autumn.
