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斯字无蜜腺棉731N除具有斯字213的一切优点外,还具有更早熟的特性。第一次收花时15%以上的棉株已吐絮。无蜜腺棉可使棉铃虫、红铃虫、烟草夜蛾、棉叶蝉和牧草盲蝽的虫口大大降低。美国陆地棉通常有以下几个蜜腺:一在苞片主脉上,一在每一苞片基部,一在叶片与花萼之间。蜜露是较清的汁液,可给予害虫以水分、糖与氨基酸。无蜜腺棉断绝这些食料来源,害虫数量因而减少。无蜜腺棉对于疯长以及温度过高
Si word nectar cotton 731N in addition to Si Si 213 with all the advantages, but also has a more sophisticated features. The first time when the flowers received more than 15% of cotton bolting floc. No nectar can cotton bollworm, pink bollworm, tobacco budworm, cotton leafhopper and herbage Lygus bug population greatly reduced. American upland cotton usually has the following nectaries: one on the main veins of bracts, one at the base of each bracts, one between leaves and calyx. Honeydew is a cleaner juice that gives pests water, sugar and amino acids. No nectar cotton cut off these food sources, thus reducing the number of pests. No honey gland for crazy and over-temperature