甘肃农业科技
甘肅農業科技
감숙농업과기
GANSU AGRICULTURAL SCIENCE AND TECHNOLOGY
2014年
8期
32-34,35
,共4页
玉米%品种(系)%耐密性%评价%临洮县
玉米%品種(繫)%耐密性%評價%臨洮縣
옥미%품충(계)%내밀성%평개%림조현
Corn%Variety%Density tolerance%Evaluation%Lintao county
在67500株/hm2与82500株/hm2两个密度水平下，对临洮县大面积种植的3个玉米品种（系）豫玉22号、先玉335及自选163的产量、株高及行粒数等耐密性评价指标参数进行了分析。结果表明，在两个密度水平下，自选163折合产量差异不显著，株高与行粒数表现出显著或极显著差异；豫玉22号与先玉335折合产量差异达极显著水平，株高与行粒数差异不显著。表明产量、株高及行粒数等指标可用于玉米材料与品种的耐密性评价。在82500株/hm2密度水平下，先玉335、豫玉22号折合产量分别为21548.8、20372.0 kg/hm2，较自选163分别增产20.82%、14.22%。可见先玉335、豫玉22号属耐密玉米品种，在玉米生产中可适当增加种植密度。
在67500株/hm2與82500株/hm2兩箇密度水平下，對臨洮縣大麵積種植的3箇玉米品種（繫）豫玉22號、先玉335及自選163的產量、株高及行粒數等耐密性評價指標參數進行瞭分析。結果錶明，在兩箇密度水平下，自選163摺閤產量差異不顯著，株高與行粒數錶現齣顯著或極顯著差異；豫玉22號與先玉335摺閤產量差異達極顯著水平，株高與行粒數差異不顯著。錶明產量、株高及行粒數等指標可用于玉米材料與品種的耐密性評價。在82500株/hm2密度水平下，先玉335、豫玉22號摺閤產量分彆為21548.8、20372.0 kg/hm2，較自選163分彆增產20.82%、14.22%。可見先玉335、豫玉22號屬耐密玉米品種，在玉米生產中可適噹增加種植密度。
재67500주/hm2여82500주/hm2량개밀도수평하，대림조현대면적충식적3개옥미품충（계）예옥22호、선옥335급자선163적산량、주고급행립수등내밀성평개지표삼수진행료분석。결과표명，재량개밀도수평하，자선163절합산량차이불현저，주고여행립수표현출현저혹겁현저차이；예옥22호여선옥335절합산량차이체겁현저수평，주고여행립수차이불현저。표명산량、주고급행립수등지표가용우옥미재료여품충적내밀성평개。재82500주/hm2밀도수평하，선옥335、예옥22호절합산량분별위21548.8、20372.0 kg/hm2，교자선163분별증산20.82%、14.22%。가견선옥335、예옥22호속내밀옥미품충，재옥미생산중가괄당증가충식밀도。
Under 67,500 /hm2 and 82500 /hm2 density levels,density tolerance evaluation parameters such as yield,plant height and row grains of Yuyu 22,Xianyu 335 and 163 (breeding by author),which cultivated in large-scale in Lintao county, were analyzed . The results showed that under the two density levels,equivalent yield of 163 was not significant difference,plant height and row grains were significant or highly significant difference;Equivalent yield of Yuyu 22 and Xianyu 335 were significant difference,plant height and row grains was not significant difference. It indicated that the yield,plant height and row grains could be used for density tolerance evaluation of corn materials and varieties . Under 82 500 /hm2 density levels,equivalent yields of Xianyu 335,Yuyu 22 were 21 548.8 and 20 372.0 kg/hm2,increased by 20.82% and 14.22%,respectively,compared with optional 163. Therefore,Xianyu 335 and Yuyu 22 are higher density-tolerant varieties,the planting density could be increased reasonably.
