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小麦籽粒形成期在生育阶段上主要指抽穗至籽粒成熟这一段时期。这时小麦的营养器官和生殖器官都已陆续建成,转入开花、结实、成熟直到形成完整的种子。大量研究证明:麦粒的产量主要来源于抽穗到成熟期间叶片的光合产物,而乳熟期又是麦粒干物质积累最旺盛的时期,其中2/3—4/5的干物质由这个时期的光合产物转化形成的,由于此期的光合产物大量向籽粒运转积累,所以抽穗至成熟期除影响粒数外,也是决定粒重的关键时期,粒重是构成小麦产量的重要因素之一,因此,在达到一定穗数和大穗的基础上,努力创造适合于开花、授精和籽粒灌浆成熟的外界条件并采取相应的栽培措施,
Wheat grain formation at the growth stage mainly refers to the period from heading to grain ripening. At this time, the vegetative organs and reproductive organs of wheat have been gradually completed and transformed into flowering, strong and mature until the formation of complete seeds. Numerous studies have shown that the yield of wheat mainly comes from the photosynthate of the leaves from heading to maturity, and the milky maturity is the most abundant dry matter accumulation of wheat, of which 2 / 3-4 / 5 of dry matter from this period Of photosynthetic products formed by transformation, due to a large number of photosynthetic products during the operation of the accumulation of grain, so heading to maturity in addition to affecting the number of grains, but also determine the critical period of grain weight, grain weight is an important factor in the formation of wheat yield, Therefore, on the basis of reaching a certain number of ears and large ears, we should strive to create suitable external conditions suitable for flowering, insemination and grain filling and take corresponding cultivation measures,