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两年来,在加拿大西部的两个地区对五个甘蓝型油菜的播种期和播种量对农业性状的影响进行了研究。播种期对种子产量,对从播种到首花的天数、从播种到末花及到第一个角果成熟的天数,都有很大影响。但对开花期长短和种子形成期长短没有重要影响。一般说来,在所有的品种中,最迟播种的,产量最低。从播种到首花和末花及到第一个角果成熟的天数最少。播种量对从播种到末花及到第一个角果成熟的天数和种子形成期的长短影响很大。但对种子、对首花和开花期长短影响不大。一般是:在所有的播期和所有的品种中,播种量最大的导致从播种到末花和到第一个角果成熟之间所需的天数最少,种子形成期的阶段最短。
In two years, the effects of sowing time and sowing volume on five traits of agricultural rape in five canola cultivars were studied in two areas in western Canada. The sowing period has a great effect on the yield of seeds, the number of days from sowing to first flower, the number of days from sowing till end flower and the first maturity. But had no significant effect on the flowering period and the seed formation period. In general, the lowest yield is sown at the latest in all varieties. The minimum number of days ripened from the first flower and the last flower to the first pod. The amount of seeding greatly influences the number of days from sowing to end flowers and maturing to the first pod and the length of the seed formation. But the seeds, the first flower and flowering period has little effect on the length. Generally, the greatest seeding rate results in the least number of days between sowing and final flower development and maturation of the first pod in all sowing dates and in all varieties, with the shortest period of seed sowing.